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<!-- Created by Merrill Corporation -->
<!-- Generated by Fujitsu Interstage XWand B0160 -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" />
  <link:labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_PreferredStockLiquidationPreferenceValue" xlink:label="PreferredStockLiquidationPreferenceValue" xlink:title="PreferredStockLiquidationPreferenceValue" />
    <link:label xlink:type="resource" xlink:label="label_PreferredStockLiquidationPreferenceValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PreferredStockLiquidationPreferenceValue" xml:lang="en-US" id="label_PreferredStockLiquidationPreferenceValue">Preferred stock, liquidation preference value</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PreferredStockLiquidationPreferenceValue" xlink:to="label_PreferredStockLiquidationPreferenceValue" xlink:title="label: PreferredStockLiquidationPreferenceValue to label_PreferredStockLiquidationPreferenceValue" />
    <link:label xlink:type="resource" xlink:label="label_PreferredStockLiquidationPreferenceValue_4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_PreferredStockLiquidationPreferenceValue" xml:lang="en-US" id="label_PreferredStockLiquidationPreferenceValue_4">Preferred stock, liquidation preference value</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PreferredStockLiquidationPreferenceValue" xlink:to="label_PreferredStockLiquidationPreferenceValue_4" xlink:title="label: PreferredStockLiquidationPreferenceValue to label_PreferredStockLiquidationPreferenceValue" />
    <link:label xlink:type="resource" xlink:label="label_PreferredStockLiquidationPreferenceValue_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PreferredStockLiquidationPreferenceValue" xml:lang="en-US" id="label_PreferredStockLiquidationPreferenceValue_2">The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PreferredStockLiquidationPreferenceValue" xlink:to="label_PreferredStockLiquidationPreferenceValue_2" xlink:title="label: PreferredStockLiquidationPreferenceValue to label_PreferredStockLiquidationPreferenceValue" />
    <link:label xlink:type="resource" xlink:label="label_PreferredStockLiquidationPreferenceValue_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PreferredStockLiquidationPreferenceValue" xml:lang="en-US" id="label_PreferredStockLiquidationPreferenceValue_3">Preferred stock, liquidation preference value (in dollars)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PreferredStockLiquidationPreferenceValue" xlink:to="label_PreferredStockLiquidationPreferenceValue_3" xlink:title="label: PreferredStockLiquidationPreferenceValue to label_PreferredStockLiquidationPreferenceValue" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_PaymentUnderGuarantee" xlink:label="PaymentUnderGuarantee" xlink:title="PaymentUnderGuarantee" />
    <link:label xlink:type="resource" xlink:label="label_PaymentUnderGuarantee" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PaymentUnderGuarantee" xml:lang="en-US" id="label_PaymentUnderGuarantee">Payment under guarantee</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentUnderGuarantee" xlink:to="label_PaymentUnderGuarantee" xlink:title="label: PaymentUnderGuarantee to label_PaymentUnderGuarantee" />
    <link:label xlink:type="resource" xlink:label="label_PaymentUnderGuarantee_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PaymentUnderGuarantee" xml:lang="en-US" id="label_PaymentUnderGuarantee_3">The cash outflow form a repayment of an unsecured loan facility agreement with the Scottish Enterprise having terms of repayment due if the Company significantly reduced its Scottish research operations.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentUnderGuarantee" xlink:to="label_PaymentUnderGuarantee_3" xlink:title="label: PaymentUnderGuarantee to label_PaymentUnderGuarantee" />
    <link:label xlink:type="resource" xlink:label="label_PaymentUnderGuarantee_2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_PaymentUnderGuarantee" xml:lang="en-US" id="label_PaymentUnderGuarantee_2">Payment under guarantee</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentUnderGuarantee" xlink:to="label_PaymentUnderGuarantee_2" xlink:title="label: PaymentUnderGuarantee to label_PaymentUnderGuarantee" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_ChangeInValuationOfWarrants" xlink:label="ChangeInValuationOfWarrants" xlink:title="ChangeInValuationOfWarrants" />
    <link:label xlink:type="resource" xlink:label="label_ChangeInValuationOfWarrants" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ChangeInValuationOfWarrants" xml:lang="en-US" id="label_ChangeInValuationOfWarrants">Change in Valuation of Warrants</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ChangeInValuationOfWarrants" xlink:to="label_ChangeInValuationOfWarrants" xlink:title="label: ChangeInValuationOfWarrants to label_ChangeInValuationOfWarrants" />
    <link:label xlink:type="resource" xlink:label="label_ChangeInValuationOfWarrants_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ChangeInValuationOfWarrants" xml:lang="en-US" id="label_ChangeInValuationOfWarrants_3">Change in valuation of warrants</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ChangeInValuationOfWarrants" xlink:to="label_ChangeInValuationOfWarrants_3" xlink:title="label: ChangeInValuationOfWarrants to label_ChangeInValuationOfWarrants" />
    <link:label xlink:type="resource" xlink:label="label_ChangeInValuationOfWarrants_2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_ChangeInValuationOfWarrants" xml:lang="en-US" id="label_ChangeInValuationOfWarrants_2">Change in valuation of warrants liability</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ChangeInValuationOfWarrants" xlink:to="label_ChangeInValuationOfWarrants_2" xlink:title="label: ChangeInValuationOfWarrants to label_ChangeInValuationOfWarrants" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_DividendsOnPreferredOrdinaryShares" xlink:label="DividendsOnPreferredOrdinaryShares" xlink:title="DividendsOnPreferredOrdinaryShares" />
    <link:label xlink:type="resource" xlink:label="label_DividendsOnPreferredOrdinaryShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DividendsOnPreferredOrdinaryShares" xml:lang="en-US" id="label_DividendsOnPreferredOrdinaryShares">Dividends on preferred ordinary shares</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DividendsOnPreferredOrdinaryShares" xlink:to="label_DividendsOnPreferredOrdinaryShares" xlink:title="label: DividendsOnPreferredOrdinaryShares to label_DividendsOnPreferredOrdinaryShares" />
    <link:label xlink:type="resource" xlink:label="label_DividendsOnPreferredOrdinaryShares_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DividendsOnPreferredOrdinaryShares" xml:lang="en-US" id="label_DividendsOnPreferredOrdinaryShares_3">Dividends on preferred ordinary shares.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DividendsOnPreferredOrdinaryShares" xlink:to="label_DividendsOnPreferredOrdinaryShares_3" xlink:title="label: DividendsOnPreferredOrdinaryShares to label_DividendsOnPreferredOrdinaryShares" />
    <link:label xlink:type="resource" xlink:label="label_DividendsOnPreferredOrdinaryShares_2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_DividendsOnPreferredOrdinaryShares" xml:lang="en-US" id="label_DividendsOnPreferredOrdinaryShares_2">Dividend on preferred ordinary shares</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DividendsOnPreferredOrdinaryShares" xlink:to="label_DividendsOnPreferredOrdinaryShares_2" xlink:title="label: DividendsOnPreferredOrdinaryShares to label_DividendsOnPreferredOrdinaryShares" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_RedeemablePreferredStocksDividends" xlink:label="RedeemablePreferredStocksDividends" xlink:title="RedeemablePreferredStocksDividends" />
    <link:label xlink:type="resource" xlink:label="label_RedeemablePreferredStocksDividends" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RedeemablePreferredStocksDividends" xml:lang="en-US" id="label_RedeemablePreferredStocksDividends">Redeemable Preferred Stocks Dividends</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RedeemablePreferredStocksDividends" xlink:to="label_RedeemablePreferredStocksDividends" xlink:title="label: RedeemablePreferredStocksDividends to label_RedeemablePreferredStocksDividends" />
    <link:label xlink:type="resource" xlink:label="label_RedeemablePreferredStocksDividends_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_RedeemablePreferredStocksDividends" xml:lang="en-US" id="label_RedeemablePreferredStocksDividends_3">The amount of dividends deemed declared in the period to preferred shareholders as a result of the preferred shares being converted into common stock.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RedeemablePreferredStocksDividends" xlink:to="label_RedeemablePreferredStocksDividends_3" xlink:title="label: RedeemablePreferredStocksDividends to label_RedeemablePreferredStocksDividends" />
    <link:label xlink:type="resource" xlink:label="label_RedeemablePreferredStocksDividends_2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_RedeemablePreferredStocksDividends" xml:lang="en-US" id="label_RedeemablePreferredStocksDividends_2">Deemed dividend on convertible exchangeable preferred shares</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RedeemablePreferredStocksDividends" xlink:to="label_RedeemablePreferredStocksDividends_2" xlink:title="label: RedeemablePreferredStocksDividends to label_RedeemablePreferredStocksDividends" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_DividendsPreferredStocks" xlink:label="DividendsPreferredStocks" xlink:title="DividendsPreferredStocks" />
    <link:label xlink:type="resource" xlink:label="label_DividendsPreferredStocks" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DividendsPreferredStocks" xml:lang="en-US" id="label_DividendsPreferredStocks">Dividends Preferred Stocks</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DividendsPreferredStocks" xlink:to="label_DividendsPreferredStocks" xlink:title="label: DividendsPreferredStocks to label_DividendsPreferredStocks" />
    <link:label xlink:type="resource" xlink:label="label_DividendsPreferredStocks_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DividendsPreferredStocks" xml:lang="en-US" id="label_DividendsPreferredStocks_3">The amount of dividends declared in the period to preferred shareholders even if not paid.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DividendsPreferredStocks" xlink:to="label_DividendsPreferredStocks_3" xlink:title="label: DividendsPreferredStocks to label_DividendsPreferredStocks" />
    <link:label xlink:type="resource" xlink:label="label_DividendsPreferredStocks_2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_DividendsPreferredStocks" xml:lang="en-US" id="label_DividendsPreferredStocks_2">Dividend on convertible exchangeable preferred shares</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DividendsPreferredStocks" xlink:to="label_DividendsPreferredStocks_2" xlink:title="label: DividendsPreferredStocks to label_DividendsPreferredStocks" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities" xlink:label="ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities" xlink:title="ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities" xml:lang="en-US" id="label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities">Change in Valuation of Warrants Adjustments to Reconcile, Net Loss to Net Cash Used in Operating Activities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities" xlink:to="label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities" xlink:title="label: ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities to label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities" xml:lang="en-US" id="label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities_3">Amount recognized during the period for the change in valuation of warrants.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities" xlink:to="label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities_3" xlink:title="label: ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities to label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities" xml:lang="en-US" id="label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities_2">Change in valuation of warrants</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities" xlink:to="label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities_2" xlink:title="label: ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities to label_ChangeInValuationOfWarrantsAdjustmentsToReconcileNetLossToNetCashUsedInOperatingActivities" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_StockOptionPlanExpenses" xlink:label="StockOptionPlanExpenses" xlink:title="StockOptionPlanExpenses" />
    <link:label xlink:type="resource" xlink:label="label_StockOptionPlanExpenses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockOptionPlanExpenses" xml:lang="en-US" id="label_StockOptionPlanExpenses">Stock Option Plan Expenses</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockOptionPlanExpenses" xlink:to="label_StockOptionPlanExpenses" xlink:title="label: StockOptionPlanExpenses to label_StockOptionPlanExpenses" />
    <link:label xlink:type="resource" xlink:label="label_StockOptionPlanExpenses_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StockOptionPlanExpenses" xml:lang="en-US" id="label_StockOptionPlanExpenses_3">The aggregate amount of noncash, equity-based issued to non-employees for services rendered. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockOptionPlanExpenses" xlink:to="label_StockOptionPlanExpenses_3" xlink:title="label: StockOptionPlanExpenses to label_StockOptionPlanExpenses" />
    <link:label xlink:type="resource" xlink:label="label_StockOptionPlanExpenses_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockOptionPlanExpenses" xml:lang="en-US" id="label_StockOptionPlanExpenses_2">Compensation for warrants issued to non-employees</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockOptionPlanExpenses" xlink:to="label_StockOptionPlanExpenses_2" xlink:title="label: StockOptionPlanExpenses to label_StockOptionPlanExpenses" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_IssuanceOfStocksAndWarrantsForServicesOrClaims" xlink:label="IssuanceOfStocksAndWarrantsForServicesOrClaims" xlink:title="IssuanceOfStocksAndWarrantsForServicesOrClaims" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfStocksAndWarrantsForServicesOrClaims" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IssuanceOfStocksAndWarrantsForServicesOrClaims" xml:lang="en-US" id="label_IssuanceOfStocksAndWarrantsForServicesOrClaims">Issuance of Stocks and Warrants for Services or Claims</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfStocksAndWarrantsForServicesOrClaims" xlink:to="label_IssuanceOfStocksAndWarrantsForServicesOrClaims" xlink:title="label: IssuanceOfStocksAndWarrantsForServicesOrClaims to label_IssuanceOfStocksAndWarrantsForServicesOrClaims" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfStocksAndWarrantsForServicesOrClaims_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_IssuanceOfStocksAndWarrantsForServicesOrClaims" xml:lang="en-US" id="label_IssuanceOfStocksAndWarrantsForServicesOrClaims_3">The aggregate amount of noncash, equity-based issued intellectual property rights. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfStocksAndWarrantsForServicesOrClaims" xlink:to="label_IssuanceOfStocksAndWarrantsForServicesOrClaims_3" xlink:title="label: IssuanceOfStocksAndWarrantsForServicesOrClaims to label_IssuanceOfStocksAndWarrantsForServicesOrClaims" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfStocksAndWarrantsForServicesOrClaims_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_IssuanceOfStocksAndWarrantsForServicesOrClaims" xml:lang="en-US" id="label_IssuanceOfStocksAndWarrantsForServicesOrClaims_2">Shares issued for IP rights</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfStocksAndWarrantsForServicesOrClaims" xlink:to="label_IssuanceOfStocksAndWarrantsForServicesOrClaims_2" xlink:title="label: IssuanceOfStocksAndWarrantsForServicesOrClaims to label_IssuanceOfStocksAndWarrantsForServicesOrClaims" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_AmendmentDescription" xlink:label="AmendmentDescription" xlink:title="AmendmentDescription" />
    <link:label xlink:type="resource" xlink:label="label_AmendmentDescription" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmendmentDescription" xml:lang="en-US" id="label_AmendmentDescription">Amendment Description</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmendmentDescription" xlink:to="label_AmendmentDescription" xlink:title="label: AmendmentDescription to label_AmendmentDescription" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_AmendmentFlag" xlink:label="AmendmentFlag" xlink:title="AmendmentFlag" />
    <link:label xlink:type="resource" xlink:label="label_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmendmentFlag" xml:lang="en-US" id="label_AmendmentFlag">Amendment Flag</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmendmentFlag" xlink:to="label_AmendmentFlag" xlink:title="label: AmendmentFlag to label_AmendmentFlag" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_ProceedsOfCommittableLoanNotesIssuedFromShareholders" xlink:label="ProceedsOfCommittableLoanNotesIssuedFromShareholders" xlink:title="ProceedsOfCommittableLoanNotesIssuedFromShareholders" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsOfCommittableLoanNotesIssuedFromShareholders" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProceedsOfCommittableLoanNotesIssuedFromShareholders" xml:lang="en-US" id="label_ProceedsOfCommittableLoanNotesIssuedFromShareholders">Proceeds of Committable Loan Notes Issued from Shareholders</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsOfCommittableLoanNotesIssuedFromShareholders" xlink:to="label_ProceedsOfCommittableLoanNotesIssuedFromShareholders" xlink:title="label: ProceedsOfCommittableLoanNotesIssuedFromShareholders to label_ProceedsOfCommittableLoanNotesIssuedFromShareholders" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsOfCommittableLoanNotesIssuedFromShareholders" xlink:to="label_ProceedsOfCommittableLoanNotesIssuedFromShareholders_3" xlink:title="label: ProceedsOfCommittableLoanNotesIssuedFromShareholders to label_ProceedsOfCommittableLoanNotesIssuedFromShareholders" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsOfCommittableLoanNotesIssuedFromShareholders_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ProceedsOfCommittableLoanNotesIssuedFromShareholders" xml:lang="en-US" id="label_ProceedsOfCommittableLoanNotesIssuedFromShareholders_2">Proceeds of committable loan notes issued from shareholders</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsOfCommittableLoanNotesIssuedFromShareholders" xlink:to="label_ProceedsOfCommittableLoanNotesIssuedFromShareholders_2" xlink:title="label: ProceedsOfCommittableLoanNotesIssuedFromShareholders to label_ProceedsOfCommittableLoanNotesIssuedFromShareholders" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_CashReceivedDuringPeriodForAbstract" xlink:label="CashReceivedDuringPeriodForAbstract" xlink:title="CashReceivedDuringPeriodForAbstract" />
    <link:label xlink:type="resource" xlink:label="label_CashReceivedDuringPeriodForAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CashReceivedDuringPeriodForAbstract" xml:lang="en-US" id="label_CashReceivedDuringPeriodForAbstract">Cash Received During Period for [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashReceivedDuringPeriodForAbstract" xlink:to="label_CashReceivedDuringPeriodForAbstract" xlink:title="label: CashReceivedDuringPeriodForAbstract to label_CashReceivedDuringPeriodForAbstract" />
    <link:label xlink:type="resource" xlink:label="label_CashReceivedDuringPeriodForAbstract_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CashReceivedDuringPeriodForAbstract" xml:lang="en-US" id="label_CashReceivedDuringPeriodForAbstract_2">Cash received during the period for:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashReceivedDuringPeriodForAbstract" xlink:to="label_CashReceivedDuringPeriodForAbstract_2" xlink:title="label: CashReceivedDuringPeriodForAbstract to label_CashReceivedDuringPeriodForAbstract" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_ScheduleOfNonCashTransactionsAbstract" xlink:label="ScheduleOfNonCashTransactionsAbstract" xlink:title="ScheduleOfNonCashTransactionsAbstract" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfNonCashTransactionsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfNonCashTransactionsAbstract" xml:lang="en-US" id="label_ScheduleOfNonCashTransactionsAbstract">Schedule of Non Cash Transactions [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfNonCashTransactionsAbstract" xlink:to="label_ScheduleOfNonCashTransactionsAbstract" xlink:title="label: ScheduleOfNonCashTransactionsAbstract to label_ScheduleOfNonCashTransactionsAbstract" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfNonCashTransactionsAbstract_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfNonCashTransactionsAbstract" xml:lang="en-US" id="label_ScheduleOfNonCashTransactionsAbstract_2">Schedule of non-cash transactions:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfNonCashTransactionsAbstract" xlink:to="label_ScheduleOfNonCashTransactionsAbstract_2" xlink:title="label: ScheduleOfNonCashTransactionsAbstract to label_ScheduleOfNonCashTransactionsAbstract" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases" xlink:label="AcquisitionsOfEquipmentPurchasedThroughCapitalLeases" xlink:title="AcquisitionsOfEquipmentPurchasedThroughCapitalLeases" />
    <link:label xlink:type="resource" xlink:label="label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases" xml:lang="en-US" id="label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases">Acquisitions of Equipment Purchased Through Capital Leases</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AcquisitionsOfEquipmentPurchasedThroughCapitalLeases" xlink:to="label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases" xlink:title="label: AcquisitionsOfEquipmentPurchasedThroughCapitalLeases to label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases" />
    <link:label xlink:type="resource" xlink:label="label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases" xml:lang="en-US" id="label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases_3">Assets acquired under capital leases.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AcquisitionsOfEquipmentPurchasedThroughCapitalLeases" xlink:to="label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases_3" xlink:title="label: AcquisitionsOfEquipmentPurchasedThroughCapitalLeases to label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases" />
    <link:label xlink:type="resource" xlink:label="label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases" xml:lang="en-US" id="label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases_2">Acquisitions of equipment purchased through capital leases</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AcquisitionsOfEquipmentPurchasedThroughCapitalLeases" xlink:to="label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases_2" xlink:title="label: AcquisitionsOfEquipmentPurchasedThroughCapitalLeases to label_AcquisitionsOfEquipmentPurchasedThroughCapitalLeases" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements" xlink:label="IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements" xlink:title="IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements" xml:lang="en-US" id="label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements">Issuance of Ordinary Shares in Connection with License Agreements</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements" xlink:to="label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements" xlink:title="label: IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements to label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements" xml:lang="en-US" id="label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements_3">Issuance of ordinary shares through issuance of license agreements.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements" xlink:to="label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements_3" xlink:title="label: IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements to label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements" xml:lang="en-US" id="label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements_2">Issuance of common shares in connection with license agreements</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements" xlink:to="label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements_2" xlink:title="label: IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements to label_IssuanceOfOrdinarySharesInConnectionWithLicenseAgreements" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan" xlink:label="IssuanceOfOrdinarySharesOnConversionOfBridgingLoan" xlink:title="IssuanceOfOrdinarySharesOnConversionOfBridgingLoan" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan" xml:lang="en-US" id="label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan">Issuance of Ordinary Shares on Conversion of Bridging Loan</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfOrdinarySharesOnConversionOfBridgingLoan" xlink:to="label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan" xlink:title="label: IssuanceOfOrdinarySharesOnConversionOfBridgingLoan to label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan" xml:lang="en-US" id="label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan_3">Issuance of ordinary shares through conversion of bridge loan.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfOrdinarySharesOnConversionOfBridgingLoan" xlink:to="label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan_3" xlink:title="label: IssuanceOfOrdinarySharesOnConversionOfBridgingLoan to label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan" xml:lang="en-US" id="label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan_2">Issuance of Ordinary shares on conversion of bridging loan</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfOrdinarySharesOnConversionOfBridgingLoan" xlink:to="label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan_2" xlink:title="label: IssuanceOfOrdinarySharesOnConversionOfBridgingLoan to label_IssuanceOfOrdinarySharesOnConversionOfBridgingLoan" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest" xlink:label="IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest" xlink:title="IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest" xml:lang="en-US" id="label_IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest">Issuance of Preferred Ordinary Class C Shares on Conversion of Secured Convertible Loan Notes and Accrued Interest</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest" xlink:to="label_IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest" xlink:title="label: IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest to label_IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest" xml:lang="en-US" id="label_IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest_3">Issuance of Preferred shares on conversion of secured convertible loan notes and accrued interest.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest" xlink:to="label_IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest_3" xlink:title="label: IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest to label_IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest" xml:lang="en-US" id="label_IssuanceOfPreferredOrdinaryClassCSharesOnConversionOfSecuredConvertibleLoanNotesAndAccruedInterest_2">Issuance of Preferred Ordinary 'C' shares on conversion of secured convertible loan notes and accrued interest</link:label>
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    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_IssuanceOfOrdinarySharesInLieuOfCashBonus" xlink:label="IssuanceOfOrdinarySharesInLieuOfCashBonus" xlink:title="IssuanceOfOrdinarySharesInLieuOfCashBonus" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfOrdinarySharesInLieuOfCashBonus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IssuanceOfOrdinarySharesInLieuOfCashBonus" xml:lang="en-US" id="label_IssuanceOfOrdinarySharesInLieuOfCashBonus">Issuance of Ordinary Shares in Lieu of Cash Bonus</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfOrdinarySharesInLieuOfCashBonus" xlink:to="label_IssuanceOfOrdinarySharesInLieuOfCashBonus" xlink:title="label: IssuanceOfOrdinarySharesInLieuOfCashBonus to label_IssuanceOfOrdinarySharesInLieuOfCashBonus" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfOrdinarySharesInLieuOfCashBonus_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_IssuanceOfOrdinarySharesInLieuOfCashBonus" xml:lang="en-US" id="label_IssuanceOfOrdinarySharesInLieuOfCashBonus_3">Issuance of ordinary shares in lieu of cash bonuses.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfOrdinarySharesInLieuOfCashBonus" xlink:to="label_IssuanceOfOrdinarySharesInLieuOfCashBonus_3" xlink:title="label: IssuanceOfOrdinarySharesInLieuOfCashBonus to label_IssuanceOfOrdinarySharesInLieuOfCashBonus" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfOrdinarySharesInLieuOfCashBonus_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_IssuanceOfOrdinarySharesInLieuOfCashBonus" xml:lang="en-US" id="label_IssuanceOfOrdinarySharesInLieuOfCashBonus_2">Issuance of Ordinary shares in lieu of cash bonus</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfOrdinarySharesInLieuOfCashBonus" xlink:to="label_IssuanceOfOrdinarySharesInLieuOfCashBonus_2" xlink:title="label: IssuanceOfOrdinarySharesInLieuOfCashBonus to label_IssuanceOfOrdinarySharesInLieuOfCashBonus" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_SignificantContractsDisclosureAbstract" xlink:label="SignificantContractsDisclosureAbstract" xlink:title="SignificantContractsDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_SignificantContractsDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SignificantContractsDisclosureAbstract" xml:lang="en-US" id="label_SignificantContractsDisclosureAbstract">Significant Contracts</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SignificantContractsDisclosureAbstract" xlink:to="label_SignificantContractsDisclosureAbstract" xlink:title="label: SignificantContractsDisclosureAbstract to label_SignificantContractsDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_SignificantContractsDisclosureTextBlock" xlink:label="SignificantContractsDisclosureTextBlock" xlink:title="SignificantContractsDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_SignificantContractsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SignificantContractsDisclosureTextBlock" xml:lang="en-US" id="label_SignificantContractsDisclosureTextBlock">Significant Contracts Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SignificantContractsDisclosureTextBlock" xlink:to="label_SignificantContractsDisclosureTextBlock" xlink:title="label: SignificantContractsDisclosureTextBlock to label_SignificantContractsDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_SignificantContractsDisclosureTextBlock_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_SignificantContractsDisclosureTextBlock" xml:lang="en-US" id="label_SignificantContractsDisclosureTextBlock_3">The entire disclosure of significant contracts pursuant to distribution, licensing and research agreements entered by the reporting entity during the current period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SignificantContractsDisclosureTextBlock" xlink:to="label_SignificantContractsDisclosureTextBlock_3" xlink:title="label: SignificantContractsDisclosureTextBlock to label_SignificantContractsDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_SignificantContractsDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_SignificantContractsDisclosureTextBlock" xml:lang="en-US" id="label_SignificantContractsDisclosureTextBlock_2">Significant Contracts</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SignificantContractsDisclosureTextBlock" xlink:to="label_SignificantContractsDisclosureTextBlock_2" xlink:title="label: SignificantContractsDisclosureTextBlock to label_SignificantContractsDisclosureTextBlock" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_PrepaidExpensesAndOtherCurrentAssetsAbstract" xlink:label="PrepaidExpensesAndOtherCurrentAssetsAbstract" xlink:title="PrepaidExpensesAndOtherCurrentAssetsAbstract" />
    <link:label xlink:type="resource" xlink:label="label_PrepaidExpensesAndOtherCurrentAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PrepaidExpensesAndOtherCurrentAssetsAbstract" xml:lang="en-US" id="label_PrepaidExpensesAndOtherCurrentAssetsAbstract">Prepaid Expenses and Other Current Assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PrepaidExpensesAndOtherCurrentAssetsAbstract" xlink:to="label_PrepaidExpensesAndOtherCurrentAssetsAbstract" xlink:title="label: PrepaidExpensesAndOtherCurrentAssetsAbstract to label_PrepaidExpensesAndOtherCurrentAssetsAbstract" />
    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_PrepaidExpensesAndOtherCurrentAssetsTextBlock" xlink:label="PrepaidExpensesAndOtherCurrentAssetsTextBlock" xlink:title="PrepaidExpensesAndOtherCurrentAssetsTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_PrepaidExpensesAndOtherCurrentAssetsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PrepaidExpensesAndOtherCurrentAssetsTextBlock" xml:lang="en-US" id="label_PrepaidExpensesAndOtherCurrentAssetsTextBlock">Prepaid Expenses and Other Current Assets [Text Block]</link:label>
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    <link:label xlink:type="resource" xlink:label="label_PrepaidExpensesAndOtherCurrentAssetsTextBlock_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PrepaidExpensesAndOtherCurrentAssetsTextBlock" xml:lang="en-US" id="label_PrepaidExpensesAndOtherCurrentAssetsTextBlock_3">This element represent as Prepaid Expenses and Other Current Assets.</link:label>
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    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_StockIssuedDuringPeriodValuePrivatePlacement" xlink:label="StockIssuedDuringPeriodValuePrivatePlacement" xlink:title="StockIssuedDuringPeriodValuePrivatePlacement" />
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    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_AdjustmentsToAdditionalPaidInCapitalEffectOfWarrantPricing" xlink:label="AdjustmentsToAdditionalPaidInCapitalEffectOfWarrantPricing" xlink:title="AdjustmentsToAdditionalPaidInCapitalEffectOfWarrantPricing" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccretionExpense" xlink:label="AccretionExpense" xlink:title="AccretionExpense" />
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    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_StockIssuedDuringPeriodValueDrawDownOfCommittedEquityFinanceFacility" xlink:label="StockIssuedDuringPeriodValueDrawDownOfCommittedEquityFinanceFacility" xlink:title="StockIssuedDuringPeriodValueDrawDownOfCommittedEquityFinanceFacility" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="DocumentPeriodEndDate" xlink:title="DocumentPeriodEndDate" />
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    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_AdjustmentsToAdditionalPaidInCapitalLoansPayableWaived" xlink:label="AdjustmentsToAdditionalPaidInCapitalLoansPayableWaived" xlink:title="AdjustmentsToAdditionalPaidInCapitalLoansPayableWaived" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="DocumentFiscalYearFocus" xlink:title="DocumentFiscalYearFocus" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="DocumentFiscalPeriodFocus" xlink:title="DocumentFiscalPeriodFocus" />
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    <link:label xlink:type="resource" xlink:label="label_DocumentType" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DocumentType" xml:lang="en-US" id="label_DocumentType">Document Type</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="AdditionalPaidInCapital" xlink:title="AdditionalPaidInCapital" />
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    <link:label xlink:type="resource" xlink:label="label_AdditionalPaidInCapital_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AdditionalPaidInCapital" xml:lang="en-US" id="label_AdditionalPaidInCapital_2">Additional Paid in Capital</link:label>
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    <link:label xlink:type="resource" xlink:label="label_UnrealizedGainLossOnDerivatives_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_UnrealizedGainLossOnDerivatives" xml:lang="en-US" id="label_UnrealizedGainLossOnDerivatives_2">Unrealized Gain (Loss) on Derivatives</link:label>
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    <link:label xlink:type="resource" xlink:label="label_AmortizationOfIntangibleAssets_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmortizationOfIntangibleAssets" xml:lang="en-US" id="label_AmortizationOfIntangibleAssets_2">Amortization of Intangible Assets</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="StatementOfFinancialPositionAbstract" xlink:title="StatementOfFinancialPositionAbstract" />
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    <link:label xlink:type="resource" xlink:label="label_CashAndCashEquivalentsAtCarryingValue_2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US" id="label_CashAndCashEquivalentsAtCarryingValue_2">Cash and cash equivalents, end of period</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CashAndCashEquivalentsAtCarryingValue_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US" id="label_CashAndCashEquivalentsAtCarryingValue_3">Cash and Cash Equivalents, at Carrying Value</link:label>
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    <link:label xlink:type="resource" xlink:label="label_PaymentsForRestructuring" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_PaymentsForRestructuring" xml:lang="en-US" id="label_PaymentsForRestructuring">Provision for restructuring</link:label>
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    <link:label xlink:type="resource" xlink:label="label_PaymentsForRestructuring_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PaymentsForRestructuring" xml:lang="en-US" id="label_PaymentsForRestructuring_2">Payments for Restructuring</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromLoans" xlink:label="ProceedsFromLoans" xlink:title="ProceedsFromLoans" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestPaidNet" xlink:label="InterestPaidNet" xlink:title="InterestPaidNet" />
    <link:label xlink:type="resource" xlink:label="label_InterestPaidNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_InterestPaidNet" xml:lang="en-US" id="label_InterestPaidNet">Interest</link:label>
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    <link:label xlink:type="resource" xlink:label="label_InterestPaidNet_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InterestPaidNet" xml:lang="en-US" id="label_InterestPaidNet_2">Interest Paid, Net</link:label>
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    <link:label xlink:type="resource" xlink:label="label_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xml:lang="en-US" id="label_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets">Prepaid expenses and other assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:to="label_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:title="label: IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets to label_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" />
    <link:label xlink:type="resource" xlink:label="label_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xml:lang="en-US" id="label_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_2">Increase (Decrease) in Prepaid Expense and Other Assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:to="label_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_2" xlink:title="label: IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets to label_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="IncreaseDecreaseInOperatingCapitalAbstract" xlink:title="IncreaseDecreaseInOperatingCapitalAbstract" />
    <link:label xlink:type="resource" xlink:label="label_IncreaseDecreaseInOperatingCapitalAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_IncreaseDecreaseInOperatingCapitalAbstract" xml:lang="en-US" id="label_IncreaseDecreaseInOperatingCapitalAbstract">Changes in operating assets and liabilities:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="label_IncreaseDecreaseInOperatingCapitalAbstract" xlink:title="label: IncreaseDecreaseInOperatingCapitalAbstract to label_IncreaseDecreaseInOperatingCapitalAbstract" />
    <link:label xlink:type="resource" xlink:label="label_IncreaseDecreaseInOperatingCapitalAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncreaseDecreaseInOperatingCapitalAbstract" xml:lang="en-US" id="label_IncreaseDecreaseInOperatingCapitalAbstract_2">Increase (Decrease) in Operating Capital [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="label_IncreaseDecreaseInOperatingCapitalAbstract_2" xlink:title="label: IncreaseDecreaseInOperatingCapitalAbstract to label_IncreaseDecreaseInOperatingCapitalAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="CommitmentsAndContingenciesDisclosureTextBlock" xlink:title="CommitmentsAndContingenciesDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_CommitmentsAndContingenciesDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommitmentsAndContingenciesDisclosureTextBlock" xml:lang="en-US" id="label_CommitmentsAndContingenciesDisclosureTextBlock">Commitments and Contingencies</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommitmentsAndContingenciesDisclosureTextBlock" xlink:to="label_CommitmentsAndContingenciesDisclosureTextBlock" xlink:title="label: CommitmentsAndContingenciesDisclosureTextBlock to label_CommitmentsAndContingenciesDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_CommitmentsAndContingenciesDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommitmentsAndContingenciesDisclosureTextBlock" xml:lang="en-US" id="label_CommitmentsAndContingenciesDisclosureTextBlock_2">Commitments and Contingencies Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommitmentsAndContingenciesDisclosureTextBlock" xlink:to="label_CommitmentsAndContingenciesDisclosureTextBlock_2" xlink:title="label: CommitmentsAndContingenciesDisclosureTextBlock to label_CommitmentsAndContingenciesDisclosureTextBlock" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="CommonStockSharesAuthorized" xlink:title="CommonStockSharesAuthorized" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockSharesAuthorized" xml:lang="en-US" id="label_CommonStockSharesAuthorized">Common stock, shares authorized</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesAuthorized" xlink:to="label_CommonStockSharesAuthorized" xlink:title="label: CommonStockSharesAuthorized to label_CommonStockSharesAuthorized" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesAuthorized_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockSharesAuthorized" xml:lang="en-US" id="label_CommonStockSharesAuthorized_2">Common Stock, Shares Authorized</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesAuthorized" xlink:to="label_CommonStockSharesAuthorized_2" xlink:title="label: CommonStockSharesAuthorized to label_CommonStockSharesAuthorized" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="CommonStockSharesIssued" xlink:title="CommonStockSharesIssued" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockSharesIssued" xml:lang="en-US" id="label_CommonStockSharesIssued">Common stock, shares issued</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesIssued" xlink:to="label_CommonStockSharesIssued" xlink:title="label: CommonStockSharesIssued to label_CommonStockSharesIssued" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesIssued_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockSharesIssued" xml:lang="en-US" id="label_CommonStockSharesIssued_2">Common Stock, Shares, Issued</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesIssued" xlink:to="label_CommonStockSharesIssued_2" xlink:title="label: CommonStockSharesIssued to label_CommonStockSharesIssued" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="CommonStockSharesOutstanding" xlink:title="CommonStockSharesOutstanding" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockSharesOutstanding" xml:lang="en-US" id="label_CommonStockSharesOutstanding">Common stock, shares outstanding</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesOutstanding" xlink:to="label_CommonStockSharesOutstanding" xlink:title="label: CommonStockSharesOutstanding to label_CommonStockSharesOutstanding" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesOutstanding_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockSharesOutstanding" xml:lang="en-US" id="label_CommonStockSharesOutstanding_2">Common Stock, Shares, Outstanding</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesOutstanding" xlink:to="label_CommonStockSharesOutstanding_2" xlink:title="label: CommonStockSharesOutstanding to label_CommonStockSharesOutstanding" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockValue" xlink:label="CommonStockValue" xlink:title="CommonStockValue" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockValue" xml:lang="en-US" id="label_CommonStockValue">Common Stock, Value, Issued</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockValue" xlink:to="label_CommonStockValue" xlink:title="label: CommonStockValue to label_CommonStockValue" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockValue_2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_CommonStockValue" xml:lang="en-US" id="label_CommonStockValue_2">Common stock, $0.001 par value; 100,000,000 shares authorized at December 31, 2010 and 2011, respectively; 46,564,914 and 54,220,458 shares issued and outstanding at December 31, 2010 and 2011, respectively</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockValue" xlink:to="label_CommonStockValue_2" xlink:title="label: CommonStockValue to label_CommonStockValue" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CostOfGoodsSold" xlink:label="CostOfGoodsSold" xlink:title="CostOfGoodsSold" />
    <link:label xlink:type="resource" xlink:label="label_CostOfGoodsSold" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CostOfGoodsSold" xml:lang="en-US" id="label_CostOfGoodsSold">Cost of goods sold</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOfGoodsSold" xlink:to="label_CostOfGoodsSold" xlink:title="label: CostOfGoodsSold to label_CostOfGoodsSold" />
    <link:label xlink:type="resource" xlink:label="label_CostOfGoodsSold_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostOfGoodsSold" xml:lang="en-US" id="label_CostOfGoodsSold_2">Cost of Goods Sold</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOfGoodsSold" xlink:to="label_CostOfGoodsSold_2" xlink:title="label: CostOfGoodsSold to label_CostOfGoodsSold" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="LiabilitiesCurrent" xlink:title="LiabilitiesCurrent" />
    <link:label xlink:type="resource" xlink:label="label_LiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_LiabilitiesCurrent" xml:lang="en-US" id="label_LiabilitiesCurrent">Total current liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrent" xlink:to="label_LiabilitiesCurrent" xlink:title="label: LiabilitiesCurrent to label_LiabilitiesCurrent" />
    <link:label xlink:type="resource" xlink:label="label_LiabilitiesCurrent_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LiabilitiesCurrent" xml:lang="en-US" id="label_LiabilitiesCurrent_2">Liabilities, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrent" xlink:to="label_LiabilitiesCurrent_2" xlink:title="label: LiabilitiesCurrent to label_LiabilitiesCurrent" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="LiabilitiesCurrentAbstract" xlink:title="LiabilitiesCurrentAbstract" />
    <link:label xlink:type="resource" xlink:label="label_LiabilitiesCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LiabilitiesCurrentAbstract" xml:lang="en-US" id="label_LiabilitiesCurrentAbstract">Current liabilities:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrentAbstract" xlink:to="label_LiabilitiesCurrentAbstract" xlink:title="label: LiabilitiesCurrentAbstract to label_LiabilitiesCurrentAbstract" />
    <link:label xlink:type="resource" xlink:label="label_LiabilitiesCurrentAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LiabilitiesCurrentAbstract" xml:lang="en-US" id="label_LiabilitiesCurrentAbstract_2">Liabilities, Current [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrentAbstract" xlink:to="label_LiabilitiesCurrentAbstract_2" xlink:title="label: LiabilitiesCurrentAbstract to label_LiabilitiesCurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsDisclosureTextBlock" xlink:label="CashAndCashEquivalentsDisclosureTextBlock" xlink:title="CashAndCashEquivalentsDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_CashAndCashEquivalentsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CashAndCashEquivalentsDisclosureTextBlock" xml:lang="en-US" id="label_CashAndCashEquivalentsDisclosureTextBlock">Cash and Cash Equivalents</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashAndCashEquivalentsDisclosureTextBlock" xlink:to="label_CashAndCashEquivalentsDisclosureTextBlock" xlink:title="label: CashAndCashEquivalentsDisclosureTextBlock to label_CashAndCashEquivalentsDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_CashAndCashEquivalentsDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CashAndCashEquivalentsDisclosureTextBlock" xml:lang="en-US" id="label_CashAndCashEquivalentsDisclosureTextBlock_2">Cash and Cash Equivalents Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashAndCashEquivalentsDisclosureTextBlock" xlink:to="label_CashAndCashEquivalentsDisclosureTextBlock_2" xlink:title="label: CashAndCashEquivalentsDisclosureTextBlock to label_CashAndCashEquivalentsDisclosureTextBlock" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="ShareBasedCompensation" xlink:title="ShareBasedCompensation" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensation" xml:lang="en-US" id="label_ShareBasedCompensation">Stock-based compensation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensation" xlink:to="label_ShareBasedCompensation" xlink:title="label: ShareBasedCompensation to label_ShareBasedCompensation" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensation_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensation" xml:lang="en-US" id="label_ShareBasedCompensation_2">Share-based Compensation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensation" xlink:to="label_ShareBasedCompensation_2" xlink:title="label: ShareBasedCompensation to label_ShareBasedCompensation" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsOfFinancingCosts" xlink:label="PaymentsOfFinancingCosts" xlink:title="PaymentsOfFinancingCosts" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsOfFinancingCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PaymentsOfFinancingCosts" xml:lang="en-US" id="label_PaymentsOfFinancingCosts">Costs associated with aborted 2004 IPO</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsOfFinancingCosts" xlink:to="label_PaymentsOfFinancingCosts" xlink:title="label: PaymentsOfFinancingCosts to label_PaymentsOfFinancingCosts" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsOfFinancingCosts_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PaymentsOfFinancingCosts" xml:lang="en-US" id="label_PaymentsOfFinancingCosts_2">Payments of Financing Costs</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsOfFinancingCosts" xlink:to="label_PaymentsOfFinancingCosts_2" xlink:title="label: PaymentsOfFinancingCosts to label_PaymentsOfFinancingCosts" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GainLossOnDerivativeInstrumentsNetPretax" xlink:label="GainLossOnDerivativeInstrumentsNetPretax" xlink:title="GainLossOnDerivativeInstrumentsNetPretax" />
    <link:label xlink:type="resource" xlink:label="label_GainLossOnDerivativeInstrumentsNetPretax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_GainLossOnDerivativeInstrumentsNetPretax" xml:lang="en-US" id="label_GainLossOnDerivativeInstrumentsNetPretax">Change in valuation of derivative</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GainLossOnDerivativeInstrumentsNetPretax" xlink:to="label_GainLossOnDerivativeInstrumentsNetPretax" xlink:title="label: GainLossOnDerivativeInstrumentsNetPretax to label_GainLossOnDerivativeInstrumentsNetPretax" />
    <link:label xlink:type="resource" xlink:label="label_GainLossOnDerivativeInstrumentsNetPretax_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GainLossOnDerivativeInstrumentsNetPretax" xml:lang="en-US" id="label_GainLossOnDerivativeInstrumentsNetPretax_2">Gain (Loss) on Derivative Instruments, Net, Pretax</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GainLossOnDerivativeInstrumentsNetPretax" xlink:to="label_GainLossOnDerivativeInstrumentsNetPretax_2" xlink:title="label: GainLossOnDerivativeInstrumentsNetPretax to label_GainLossOnDerivativeInstrumentsNetPretax" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="GainLossOnSaleOfPropertyPlantEquipment" xlink:title="GainLossOnSaleOfPropertyPlantEquipment" />
    <link:label xlink:type="resource" xlink:label="label_GainLossOnSaleOfPropertyPlantEquipment" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_GainLossOnSaleOfPropertyPlantEquipment" xml:lang="en-US" id="label_GainLossOnSaleOfPropertyPlantEquipment">Loss (gain) on disposal of property, plant and equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GainLossOnSaleOfPropertyPlantEquipment" xlink:to="label_GainLossOnSaleOfPropertyPlantEquipment" xlink:title="label: GainLossOnSaleOfPropertyPlantEquipment to label_GainLossOnSaleOfPropertyPlantEquipment" />
    <link:label xlink:type="resource" xlink:label="label_GainLossOnSaleOfPropertyPlantEquipment_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_GainLossOnSaleOfPropertyPlantEquipment" xml:lang="en-US" id="label_GainLossOnSaleOfPropertyPlantEquipment_2">Gain (Loss) on Sale of Property Plant Equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GainLossOnSaleOfPropertyPlantEquipment" xlink:to="label_GainLossOnSaleOfPropertyPlantEquipment_2" xlink:title="label: GainLossOnSaleOfPropertyPlantEquipment to label_GainLossOnSaleOfPropertyPlantEquipment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse" xlink:label="ImpairmentOfLongLivedAssetsHeldForUse" xlink:title="ImpairmentOfLongLivedAssetsHeldForUse" />
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    <link:label xlink:type="resource" xlink:label="label_InterestExpense_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InterestExpense" xml:lang="en-US" id="label_InterestExpense_2">Interest Expense</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ProceedsFromInterestReceived_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProceedsFromInterestReceived" xml:lang="en-US" id="label_ProceedsFromInterestReceived_2">Proceeds from Interest Received</link:label>
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    <link:label xlink:type="resource" xlink:label="label_Liabilities_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_Liabilities" xml:lang="en-US" id="label_Liabilities_2">Liabilities</link:label>
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    <link:label xlink:type="resource" xlink:label="label_LiabilitiesAndStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_LiabilitiesAndStockholdersEquity" xml:lang="en-US" id="label_LiabilitiesAndStockholdersEquity">Total liabilities and stockholders' equity</link:label>
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    <link:label xlink:type="resource" xlink:label="label_LiabilitiesAndStockholdersEquity_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LiabilitiesAndStockholdersEquity" xml:lang="en-US" id="label_LiabilitiesAndStockholdersEquity_2">Liabilities and Equity</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="LiabilitiesAndStockholdersEquityAbstract" xlink:title="LiabilitiesAndStockholdersEquityAbstract" />
    <link:label xlink:type="resource" xlink:label="label_LiabilitiesAndStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LiabilitiesAndStockholdersEquityAbstract" xml:lang="en-US" id="label_LiabilitiesAndStockholdersEquityAbstract">LIABILITIES AND STOCKHOLDERS' EQUITY</link:label>
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    <link:label xlink:type="resource" xlink:label="label_LiabilitiesAndStockholdersEquityAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LiabilitiesAndStockholdersEquityAbstract" xml:lang="en-US" id="label_LiabilitiesAndStockholdersEquityAbstract_2">Liabilities and Equity [Abstract]</link:label>
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    <link:label xlink:type="resource" xlink:label="label_NetIncomeLoss_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetIncomeLoss" xml:lang="en-US" id="label_NetIncomeLoss_2">Net Income (Loss) Attributable to Parent</link:label>
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    <link:label xlink:type="resource" xlink:label="label_NonoperatingIncomeExpense_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NonoperatingIncomeExpense" xml:lang="en-US" id="label_NonoperatingIncomeExpense_2">Nonoperating Income (Expense)</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForRepurchaseOfEquity" xlink:label="PaymentsForRepurchaseOfEquity" xlink:title="PaymentsForRepurchaseOfEquity" />
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    <link:label xlink:type="resource" xlink:label="label_PaymentsForRepurchaseOfEquity_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PaymentsForRepurchaseOfEquity" xml:lang="en-US" id="label_PaymentsForRepurchaseOfEquity_2">Payments for Repurchase of Equity</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:title="PensionAndOtherPostretirementBenefitsDisclosureTextBlock" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="PreferredStockSharesAuthorized" xlink:title="PreferredStockSharesAuthorized" />
    <link:label xlink:type="resource" xlink:label="label_PreferredStockSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PreferredStockSharesAuthorized" xml:lang="en-US" id="label_PreferredStockSharesAuthorized">Preferred stock, shares authorized</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PreferredStockSharesAuthorized" xlink:to="label_PreferredStockSharesAuthorized" xlink:title="label: PreferredStockSharesAuthorized to label_PreferredStockSharesAuthorized" />
    <link:label xlink:type="resource" xlink:label="label_PreferredStockSharesAuthorized_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PreferredStockSharesAuthorized" xml:lang="en-US" id="label_PreferredStockSharesAuthorized_2">Preferred Stock, Shares Authorized</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PreferredStockSharesAuthorized" xlink:to="label_PreferredStockSharesAuthorized_2" xlink:title="label: PreferredStockSharesAuthorized to label_PreferredStockSharesAuthorized" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="PreferredStockSharesIssued" xlink:title="PreferredStockSharesIssued" />
    <link:label xlink:type="resource" xlink:label="label_PreferredStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PreferredStockSharesIssued" xml:lang="en-US" id="label_PreferredStockSharesIssued">Preferred stock, shares issued</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="PreferredStockSharesOutstanding" xlink:title="PreferredStockSharesOutstanding" />
    <link:label xlink:type="resource" xlink:label="label_PreferredStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PreferredStockSharesOutstanding" xml:lang="en-US" id="label_PreferredStockSharesOutstanding">Preferred stock, shares outstanding</link:label>
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    <link:label xlink:type="resource" xlink:label="label_PreferredStockSharesOutstanding_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PreferredStockSharesOutstanding" xml:lang="en-US" id="label_PreferredStockSharesOutstanding_2">Preferred Stock, Shares Outstanding</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock" xml:lang="en-US" id="label_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock">Proceeds from issuance of ordinary and preferred ordinary shares, net of issuance costs</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock" xml:lang="en-US" id="label_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_2">Proceeds from Issuance of Preferred Stock and Preference Stock</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:label="ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:title="ProceedsFromSaleOfPropertyPlantAndEquipment" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromStockOptionsExercised" xlink:to="label_ProceedsFromStockOptionsExercised" xlink:title="label: ProceedsFromStockOptionsExercised to label_ProceedsFromStockOptionsExercised" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromStockOptionsExercised_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProceedsFromStockOptionsExercised" xml:lang="en-US" id="label_ProceedsFromStockOptionsExercised_2">Proceeds from Stock Options Exercised</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromStockOptionsExercised" xlink:to="label_ProceedsFromStockOptionsExercised_2" xlink:title="label: ProceedsFromStockOptionsExercised to label_ProceedsFromStockOptionsExercised" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="PropertyPlantAndEquipmentNet" xlink:title="PropertyPlantAndEquipmentNet" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PropertyPlantAndEquipmentNet" xml:lang="en-US" id="label_PropertyPlantAndEquipmentNet">Property, plant and equipment (net)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentNet" xlink:to="label_PropertyPlantAndEquipmentNet" xlink:title="label: PropertyPlantAndEquipmentNet to label_PropertyPlantAndEquipmentNet" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentNet_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentNet" xml:lang="en-US" id="label_PropertyPlantAndEquipmentNet_2">Property, Plant and Equipment, Net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentNet" xlink:to="label_PropertyPlantAndEquipmentNet_2" xlink:title="label: PropertyPlantAndEquipmentNet to label_PropertyPlantAndEquipmentNet" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="PropertyPlantAndEquipmentAbstract" xlink:title="PropertyPlantAndEquipmentAbstract" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentAbstract" xml:lang="en-US" id="label_PropertyPlantAndEquipmentAbstract">Property, Plant and Equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentAbstract" xlink:to="label_PropertyPlantAndEquipmentAbstract" xlink:title="label: PropertyPlantAndEquipmentAbstract to label_PropertyPlantAndEquipmentAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="PaymentsToAcquirePropertyPlantAndEquipment" xlink:title="PaymentsToAcquirePropertyPlantAndEquipment" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsToAcquirePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_PaymentsToAcquirePropertyPlantAndEquipment" xml:lang="en-US" id="label_PaymentsToAcquirePropertyPlantAndEquipment">Purchase of property, plant and equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="label_PaymentsToAcquirePropertyPlantAndEquipment" xlink:title="label: PaymentsToAcquirePropertyPlantAndEquipment to label_PaymentsToAcquirePropertyPlantAndEquipment" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsToAcquirePropertyPlantAndEquipment_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PaymentsToAcquirePropertyPlantAndEquipment" xml:lang="en-US" id="label_PaymentsToAcquirePropertyPlantAndEquipment_2">Payments to Acquire Property, Plant, and Equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="label_PaymentsToAcquirePropertyPlantAndEquipment_2" xlink:title="label: PaymentsToAcquirePropertyPlantAndEquipment to label_PaymentsToAcquirePropertyPlantAndEquipment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireShortTermInvestments" xlink:label="PaymentsToAcquireShortTermInvestments" xlink:title="PaymentsToAcquireShortTermInvestments" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsToAcquireShortTermInvestments" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_PaymentsToAcquireShortTermInvestments" xml:lang="en-US" id="label_PaymentsToAcquireShortTermInvestments">Purchase of short-term investments on deposit, net of maturities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireShortTermInvestments" xlink:to="label_PaymentsToAcquireShortTermInvestments" xlink:title="label: PaymentsToAcquireShortTermInvestments to label_PaymentsToAcquireShortTermInvestments" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsToAcquireShortTermInvestments_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PaymentsToAcquireShortTermInvestments" xml:lang="en-US" id="label_PaymentsToAcquireShortTermInvestments_2">Payments to Acquire Short-term Investments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireShortTermInvestments" xlink:to="label_PaymentsToAcquireShortTermInvestments_2" xlink:title="label: PaymentsToAcquireShortTermInvestments to label_PaymentsToAcquireShortTermInvestments" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RepaymentsOfLongTermCapitalLeaseObligations" xlink:label="RepaymentsOfLongTermCapitalLeaseObligations" xlink:title="RepaymentsOfLongTermCapitalLeaseObligations" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfLongTermCapitalLeaseObligations" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_RepaymentsOfLongTermCapitalLeaseObligations" xml:lang="en-US" id="label_RepaymentsOfLongTermCapitalLeaseObligations">Payments of capital lease obligations</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentsOfLongTermCapitalLeaseObligations" xlink:to="label_RepaymentsOfLongTermCapitalLeaseObligations" xlink:title="label: RepaymentsOfLongTermCapitalLeaseObligations to label_RepaymentsOfLongTermCapitalLeaseObligations" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfLongTermCapitalLeaseObligations_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RepaymentsOfLongTermCapitalLeaseObligations" xml:lang="en-US" id="label_RepaymentsOfLongTermCapitalLeaseObligations_2">Repayments of Long-term Capital Lease Obligations</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentsOfLongTermCapitalLeaseObligations" xlink:to="label_RepaymentsOfLongTermCapitalLeaseObligations_2" xlink:title="label: RepaymentsOfLongTermCapitalLeaseObligations to label_RepaymentsOfLongTermCapitalLeaseObligations" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:label="RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:title="RestructuringAndRelatedActivitiesDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RestructuringAndRelatedActivitiesDisclosureTextBlock" xml:lang="en-US" id="label_RestructuringAndRelatedActivitiesDisclosureTextBlock">Restructuring</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:to="label_RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:title="label: RestructuringAndRelatedActivitiesDisclosureTextBlock to label_RestructuringAndRelatedActivitiesDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_RestructuringAndRelatedActivitiesDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RestructuringAndRelatedActivitiesDisclosureTextBlock" xml:lang="en-US" id="label_RestructuringAndRelatedActivitiesDisclosureTextBlock_2">Restructuring and Related Activities Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:to="label_RestructuringAndRelatedActivitiesDisclosureTextBlock_2" xlink:title="label: RestructuringAndRelatedActivitiesDisclosureTextBlock to label_RestructuringAndRelatedActivitiesDisclosureTextBlock" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="RetainedEarningsAccumulatedDeficit" xlink:title="RetainedEarningsAccumulatedDeficit" />
    <link:label xlink:type="resource" xlink:label="label_RetainedEarningsAccumulatedDeficit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RetainedEarningsAccumulatedDeficit" xml:lang="en-US" id="label_RetainedEarningsAccumulatedDeficit">Deficit accumulated during the development stage</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RetainedEarningsAccumulatedDeficit" xlink:to="label_RetainedEarningsAccumulatedDeficit" xlink:title="label: RetainedEarningsAccumulatedDeficit to label_RetainedEarningsAccumulatedDeficit" />
    <link:label xlink:type="resource" xlink:label="label_RetainedEarningsAccumulatedDeficit_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RetainedEarningsAccumulatedDeficit" xml:lang="en-US" id="label_RetainedEarningsAccumulatedDeficit_2">Retained Earnings (Accumulated Deficit)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RetainedEarningsAccumulatedDeficit" xlink:to="label_RetainedEarningsAccumulatedDeficit_2" xlink:title="label: RetainedEarningsAccumulatedDeficit to label_RetainedEarningsAccumulatedDeficit" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RevenueFromGrants" xlink:label="RevenueFromGrants" xlink:title="RevenueFromGrants" />
    <link:label xlink:type="resource" xlink:label="label_RevenueFromGrants" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RevenueFromGrants" xml:lang="en-US" id="label_RevenueFromGrants">Grant revenue</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromGrants" xlink:to="label_RevenueFromGrants" xlink:title="label: RevenueFromGrants to label_RevenueFromGrants" />
    <link:label xlink:type="resource" xlink:label="label_RevenueFromGrants_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RevenueFromGrants" xml:lang="en-US" id="label_RevenueFromGrants_2">Revenue from Grants</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromGrants" xlink:to="label_RevenueFromGrants_2" xlink:title="label: RevenueFromGrants to label_RevenueFromGrants" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SalesRevenueNet" xlink:label="SalesRevenueNet" xlink:title="SalesRevenueNet" />
    <link:label xlink:type="resource" xlink:label="label_SalesRevenueNet" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_SalesRevenueNet" xml:lang="en-US" id="label_SalesRevenueNet">Total revenues</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SalesRevenueNet" xlink:to="label_SalesRevenueNet" xlink:title="label: SalesRevenueNet to label_SalesRevenueNet" />
    <link:label xlink:type="resource" xlink:label="label_SalesRevenueNet_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SalesRevenueNet" xml:lang="en-US" id="label_SalesRevenueNet_2">Revenue, Net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SalesRevenueNet" xlink:to="label_SalesRevenueNet_2" xlink:title="label: SalesRevenueNet to label_SalesRevenueNet" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SalesRevenueNetAbstract" xlink:label="SalesRevenueNetAbstract" xlink:title="SalesRevenueNetAbstract" />
    <link:label xlink:type="resource" xlink:label="label_SalesRevenueNetAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_SalesRevenueNetAbstract" xml:lang="en-US" id="label_SalesRevenueNetAbstract">Revenues:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SalesRevenueNetAbstract" xlink:to="label_SalesRevenueNetAbstract" xlink:title="label: SalesRevenueNetAbstract to label_SalesRevenueNetAbstract" />
    <link:label xlink:type="resource" xlink:label="label_SalesRevenueNetAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SalesRevenueNetAbstract" xml:lang="en-US" id="label_SalesRevenueNetAbstract_2">Revenue, Net [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SalesRevenueNetAbstract" xlink:to="label_SalesRevenueNetAbstract_2" xlink:title="label: SalesRevenueNetAbstract to label_SalesRevenueNetAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SalesRevenueGoodsNet" xlink:label="SalesRevenueGoodsNet" xlink:title="SalesRevenueGoodsNet" />
    <link:label xlink:type="resource" xlink:label="label_SalesRevenueGoodsNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_SalesRevenueGoodsNet" xml:lang="en-US" id="label_SalesRevenueGoodsNet">Product Revenue</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SalesRevenueGoodsNet" xlink:to="label_SalesRevenueGoodsNet" xlink:title="label: SalesRevenueGoodsNet to label_SalesRevenueGoodsNet" />
    <link:label xlink:type="resource" xlink:label="label_SalesRevenueGoodsNet_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SalesRevenueGoodsNet" xml:lang="en-US" id="label_SalesRevenueGoodsNet_2">Sales Revenue, Goods, Net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SalesRevenueGoodsNet" xlink:to="label_SalesRevenueGoodsNet_2" xlink:title="label: SalesRevenueGoodsNet to label_SalesRevenueGoodsNet" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock" xlink:label="SegmentReportingDisclosureTextBlock" xlink:title="SegmentReportingDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_SegmentReportingDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_SegmentReportingDisclosureTextBlock" xml:lang="en-US" id="label_SegmentReportingDisclosureTextBlock">Geographic Information</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SegmentReportingDisclosureTextBlock" xlink:to="label_SegmentReportingDisclosureTextBlock" xlink:title="label: SegmentReportingDisclosureTextBlock to label_SegmentReportingDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_SegmentReportingDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SegmentReportingDisclosureTextBlock" xml:lang="en-US" id="label_SegmentReportingDisclosureTextBlock_2">Segment Reporting Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SegmentReportingDisclosureTextBlock" xlink:to="label_SegmentReportingDisclosureTextBlock_2" xlink:title="label: SegmentReportingDisclosureTextBlock to label_SegmentReportingDisclosureTextBlock" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="SellingGeneralAndAdministrativeExpense" xlink:title="SellingGeneralAndAdministrativeExpense" />
    <link:label xlink:type="resource" xlink:label="label_SellingGeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_SellingGeneralAndAdministrativeExpense" xml:lang="en-US" id="label_SellingGeneralAndAdministrativeExpense">Selling, general and administrative</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SellingGeneralAndAdministrativeExpense" xlink:to="label_SellingGeneralAndAdministrativeExpense" xlink:title="label: SellingGeneralAndAdministrativeExpense to label_SellingGeneralAndAdministrativeExpense" />
    <link:label xlink:type="resource" xlink:label="label_SellingGeneralAndAdministrativeExpense_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SellingGeneralAndAdministrativeExpense" xml:lang="en-US" id="label_SellingGeneralAndAdministrativeExpense_2">Selling, General and Administrative Expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SellingGeneralAndAdministrativeExpense" xlink:to="label_SellingGeneralAndAdministrativeExpense_2" xlink:title="label: SellingGeneralAndAdministrativeExpense to label_SellingGeneralAndAdministrativeExpense" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="SignificantAccountingPoliciesTextBlock" xlink:title="SignificantAccountingPoliciesTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_SignificantAccountingPoliciesTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_SignificantAccountingPoliciesTextBlock" xml:lang="en-US" id="label_SignificantAccountingPoliciesTextBlock">Summary of Significant Accounting Policies</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SignificantAccountingPoliciesTextBlock" xlink:to="label_SignificantAccountingPoliciesTextBlock" xlink:title="label: SignificantAccountingPoliciesTextBlock to label_SignificantAccountingPoliciesTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_SignificantAccountingPoliciesTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SignificantAccountingPoliciesTextBlock" xml:lang="en-US" id="label_SignificantAccountingPoliciesTextBlock_2">Significant Accounting Policies [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SignificantAccountingPoliciesTextBlock" xlink:to="label_SignificantAccountingPoliciesTextBlock_2" xlink:title="label: SignificantAccountingPoliciesTextBlock to label_SignificantAccountingPoliciesTextBlock" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="StatementOfCashFlowsAbstract" xlink:title="StatementOfCashFlowsAbstract" />
    <link:label xlink:type="resource" xlink:label="label_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementOfCashFlowsAbstract" xml:lang="en-US" id="label_StatementOfCashFlowsAbstract">CONSOLIDATED STATEMENTS OF CASH FLOWS</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfCashFlowsAbstract" xlink:to="label_StatementOfCashFlowsAbstract" xlink:title="label: StatementOfCashFlowsAbstract to label_StatementOfCashFlowsAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="StatementOfStockholdersEquityAbstract" xlink:title="StatementOfStockholdersEquityAbstract" />
    <link:label xlink:type="resource" xlink:label="label_StatementOfStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementOfStockholdersEquityAbstract" xml:lang="en-US" id="label_StatementOfStockholdersEquityAbstract">CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfStockholdersEquityAbstract" xlink:to="label_StatementOfStockholdersEquityAbstract" xlink:title="label: StatementOfStockholdersEquityAbstract to label_StatementOfStockholdersEquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="StockholdersEquityAbstract" xlink:title="StockholdersEquityAbstract" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockholdersEquityAbstract" xml:lang="en-US" id="label_StockholdersEquityAbstract">Stockholders' equity:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityAbstract" xlink:to="label_StockholdersEquityAbstract" xlink:title="label: StockholdersEquityAbstract to label_StockholdersEquityAbstract" use="optional" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockholdersEquityAbstract" xml:lang="en-US" id="label_StockholdersEquityAbstract_2">Stockholders' Equity Attributable to Parent [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityAbstract" xlink:to="label_StockholdersEquityAbstract_2" xlink:title="label: StockholdersEquityAbstract to label_StockholdersEquityAbstract" use="optional" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="StockholdersEquityNoteDisclosureTextBlock" xlink:title="StockholdersEquityNoteDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityNoteDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockholdersEquityNoteDisclosureTextBlock" xml:lang="en-US" id="label_StockholdersEquityNoteDisclosureTextBlock">Stockholders' Equity</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityNoteDisclosureTextBlock" xlink:to="label_StockholdersEquityNoteDisclosureTextBlock" xlink:title="label: StockholdersEquityNoteDisclosureTextBlock to label_StockholdersEquityNoteDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityNoteDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockholdersEquityNoteDisclosureTextBlock" xml:lang="en-US" id="label_StockholdersEquityNoteDisclosureTextBlock_2">Stockholders' Equity Note Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityNoteDisclosureTextBlock" xlink:to="label_StockholdersEquityNoteDisclosureTextBlock_2" xlink:title="label: StockholdersEquityNoteDisclosureTextBlock to label_StockholdersEquityNoteDisclosureTextBlock" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="SupplementalCashFlowInformationAbstract" xlink:title="SupplementalCashFlowInformationAbstract" />
    <link:label xlink:type="resource" xlink:label="label_SupplementalCashFlowInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_SupplementalCashFlowInformationAbstract" xml:lang="en-US" id="label_SupplementalCashFlowInformationAbstract">Supplemental cash flow information:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SupplementalCashFlowInformationAbstract" xlink:to="label_SupplementalCashFlowInformationAbstract" xlink:title="label: SupplementalCashFlowInformationAbstract to label_SupplementalCashFlowInformationAbstract" />
    <link:label xlink:type="resource" xlink:label="label_SupplementalCashFlowInformationAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SupplementalCashFlowInformationAbstract" xml:lang="en-US" id="label_SupplementalCashFlowInformationAbstract_2">Supplemental Cash Flow Information [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SupplementalCashFlowInformationAbstract" xlink:to="label_SupplementalCashFlowInformationAbstract_2" xlink:title="label: SupplementalCashFlowInformationAbstract to label_SupplementalCashFlowInformationAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="AssetsCurrent" xlink:title="AssetsCurrent" />
    <link:label xlink:type="resource" xlink:label="label_AssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_AssetsCurrent" xml:lang="en-US" id="label_AssetsCurrent">Total current assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsCurrent" xlink:to="label_AssetsCurrent" xlink:title="label: AssetsCurrent to label_AssetsCurrent" />
    <link:label xlink:type="resource" xlink:label="label_AssetsCurrent_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AssetsCurrent" xml:lang="en-US" id="label_AssetsCurrent_2">Assets, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsCurrent" xlink:to="label_AssetsCurrent_2" xlink:title="label: AssetsCurrent to label_AssetsCurrent" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="AssetsCurrentAbstract" xlink:title="AssetsCurrentAbstract" />
    <link:label xlink:type="resource" xlink:label="label_AssetsCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AssetsCurrentAbstract" xml:lang="en-US" id="label_AssetsCurrentAbstract">Current assets:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsCurrentAbstract" xlink:to="label_AssetsCurrentAbstract" xlink:title="label: AssetsCurrentAbstract to label_AssetsCurrentAbstract" />
    <link:label xlink:type="resource" xlink:label="label_AssetsCurrentAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AssetsCurrentAbstract" xml:lang="en-US" id="label_AssetsCurrentAbstract_2">Assets, Current [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsCurrentAbstract" xlink:to="label_AssetsCurrentAbstract_2" xlink:title="label: AssetsCurrentAbstract to label_AssetsCurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_WarrantsAndRightsOutstanding" xlink:label="WarrantsAndRightsOutstanding" xlink:title="WarrantsAndRightsOutstanding" />
    <link:label xlink:type="resource" xlink:label="label_WarrantsAndRightsOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_WarrantsAndRightsOutstanding" xml:lang="en-US" id="label_WarrantsAndRightsOutstanding">Warrants and other derivatives</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantsAndRightsOutstanding" xlink:to="label_WarrantsAndRightsOutstanding" xlink:title="label: WarrantsAndRightsOutstanding to label_WarrantsAndRightsOutstanding" />
    <link:label xlink:type="resource" xlink:label="label_WarrantsAndRightsOutstanding_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_WarrantsAndRightsOutstanding" xml:lang="en-US" id="label_WarrantsAndRightsOutstanding_2">Warrants and Rights Outstanding</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantsAndRightsOutstanding" xlink:to="label_WarrantsAndRightsOutstanding_2" xlink:title="label: WarrantsAndRightsOutstanding to label_WarrantsAndRightsOutstanding" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="WeightedAverageNumberOfSharesOutstandingBasic" />
    <link:label xlink:type="resource" xlink:label="label_WeightedAverageNumberOfSharesOutstandingBasic" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US" id="label_WeightedAverageNumberOfSharesOutstandingBasic">Weighted average common shares outstanding (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="label_WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="label: WeightedAverageNumberOfSharesOutstandingBasic to label_WeightedAverageNumberOfSharesOutstandingBasic" />
    <link:label xlink:type="resource" xlink:label="label_WeightedAverageNumberOfSharesOutstandingBasic_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US" id="label_WeightedAverageNumberOfSharesOutstandingBasic_2">Weighted Average Number of Shares Outstanding, Basic</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="label_WeightedAverageNumberOfSharesOutstandingBasic_2" xlink:title="label: WeightedAverageNumberOfSharesOutstandingBasic to label_WeightedAverageNumberOfSharesOutstandingBasic" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockMember" xlink:label="CommonStockMember" xlink:title="CommonStockMember" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockMember" xml:lang="en-US" id="label_CommonStockMember">Common Stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockMember" xlink:to="label_CommonStockMember" xlink:title="label: CommonStockMember to label_CommonStockMember" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockMember" xml:lang="en-US" id="label_CommonStockMember_2">Common Stock [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockMember" xlink:to="label_CommonStockMember_2" xlink:title="label: CommonStockMember to label_CommonStockMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="PropertyPlantAndEquipmentDisclosureTextBlock" xlink:title="PropertyPlantAndEquipmentDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PropertyPlantAndEquipmentDisclosureTextBlock" xml:lang="en-US" id="label_PropertyPlantAndEquipmentDisclosureTextBlock">Property, Plant and Equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentDisclosureTextBlock" xlink:to="label_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:title="label: PropertyPlantAndEquipmentDisclosureTextBlock to label_PropertyPlantAndEquipmentDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentDisclosureTextBlock" xml:lang="en-US" id="label_PropertyPlantAndEquipmentDisclosureTextBlock_2">Property, Plant and Equipment Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentDisclosureTextBlock" xlink:to="label_PropertyPlantAndEquipmentDisclosureTextBlock_2" xlink:title="label: PropertyPlantAndEquipmentDisclosureTextBlock to label_PropertyPlantAndEquipmentDisclosureTextBlock" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="ResearchAndDevelopmentExpense" xlink:title="ResearchAndDevelopmentExpense" />
    <link:label xlink:type="resource" xlink:label="label_ResearchAndDevelopmentExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ResearchAndDevelopmentExpense" xml:lang="en-US" id="label_ResearchAndDevelopmentExpense">Research and development</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentExpense" xlink:to="label_ResearchAndDevelopmentExpense" xlink:title="label: ResearchAndDevelopmentExpense to label_ResearchAndDevelopmentExpense" />
    <link:label xlink:type="resource" xlink:label="label_ResearchAndDevelopmentExpense_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ResearchAndDevelopmentExpense" xml:lang="en-US" id="label_ResearchAndDevelopmentExpense_2">Research and Development Expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentExpense" xlink:to="label_ResearchAndDevelopmentExpense_2" xlink:title="label: ResearchAndDevelopmentExpense to label_ResearchAndDevelopmentExpense" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="PreferredStockMember" xlink:title="PreferredStockMember" />
    <link:label xlink:type="resource" xlink:label="label_PreferredStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PreferredStockMember" xml:lang="en-US" id="label_PreferredStockMember">Preferred Stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PreferredStockMember" xlink:to="label_PreferredStockMember" xlink:title="label: PreferredStockMember to label_PreferredStockMember" />
    <link:label xlink:type="resource" xlink:label="label_PreferredStockMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PreferredStockMember" xml:lang="en-US" id="label_PreferredStockMember_2">Preferred Stock [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PreferredStockMember" xlink:to="label_PreferredStockMember_2" xlink:title="label: PreferredStockMember to label_PreferredStockMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Assets" xlink:label="Assets" xlink:title="Assets" />
    <link:label xlink:type="resource" xlink:label="label_Assets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_Assets" xml:lang="en-US" id="label_Assets">Total assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Assets" xlink:to="label_Assets" xlink:title="label: Assets to label_Assets" />
    <link:label xlink:type="resource" xlink:label="label_Assets_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_Assets" xml:lang="en-US" id="label_Assets_2">Assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Assets" xlink:to="label_Assets_2" xlink:title="label: Assets to label_Assets" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="InvestmentIncomeInterest" xlink:title="InvestmentIncomeInterest" />
    <link:label xlink:type="resource" xlink:label="label_InvestmentIncomeInterest" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_InvestmentIncomeInterest" xml:lang="en-US" id="label_InvestmentIncomeInterest">Interest income</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentIncomeInterest" xlink:to="label_InvestmentIncomeInterest" xlink:title="label: InvestmentIncomeInterest to label_InvestmentIncomeInterest" />
    <link:label xlink:type="resource" xlink:label="label_InvestmentIncomeInterest_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InvestmentIncomeInterest" xml:lang="en-US" id="label_InvestmentIncomeInterest_2">Investment Income, Interest</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentIncomeInterest" xlink:to="label_InvestmentIncomeInterest_2" xlink:title="label: InvestmentIncomeInterest to label_InvestmentIncomeInterest" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentIncomeAmortizationOfPremium" xlink:label="InvestmentIncomeAmortizationOfPremium" xlink:title="InvestmentIncomeAmortizationOfPremium" />
    <link:label xlink:type="resource" xlink:label="label_InvestmentIncomeAmortizationOfPremium" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_InvestmentIncomeAmortizationOfPremium" xml:lang="en-US" id="label_InvestmentIncomeAmortizationOfPremium">Amortization of investment premiums, net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentIncomeAmortizationOfPremium" xlink:to="label_InvestmentIncomeAmortizationOfPremium" xlink:title="label: InvestmentIncomeAmortizationOfPremium to label_InvestmentIncomeAmortizationOfPremium" />
    <link:label xlink:type="resource" xlink:label="label_InvestmentIncomeAmortizationOfPremium_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InvestmentIncomeAmortizationOfPremium" xml:lang="en-US" id="label_InvestmentIncomeAmortizationOfPremium_2">Investment Income, Amortization of Premium</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentIncomeAmortizationOfPremium" xlink:to="label_InvestmentIncomeAmortizationOfPremium_2" xlink:title="label: InvestmentIncomeAmortizationOfPremium to label_InvestmentIncomeAmortizationOfPremium" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:label="DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:title="DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xml:lang="en-US" id="label_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock">Stock-Based Compensation Arrangements</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:to="label_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:title="label: DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock to label_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xml:lang="en-US" id="label_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_2">Disclosure of Compensation Related Costs, Share-based Payments [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:to="label_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_2" xlink:title="label: DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock to label_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="ScenarioUnspecifiedDomain" xlink:title="ScenarioUnspecifiedDomain" />
    <link:label xlink:type="resource" xlink:label="label_ScenarioUnspecifiedDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScenarioUnspecifiedDomain" xml:lang="en-US" id="label_ScenarioUnspecifiedDomain">Scenario, Unspecified [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScenarioUnspecifiedDomain" xlink:to="label_ScenarioUnspecifiedDomain" xlink:title="label: ScenarioUnspecifiedDomain to label_ScenarioUnspecifiedDomain" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementTable" xlink:label="StatementTable" xlink:title="StatementTable" />
    <link:label xlink:type="resource" xlink:label="label_StatementTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementTable" xml:lang="en-US" id="label_StatementTable">Statement [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementTable" xlink:to="label_StatementTable" xlink:title="label: StatementTable to label_StatementTable" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="StatementScenarioAxis" xlink:title="StatementScenarioAxis" />
    <link:label xlink:type="resource" xlink:label="label_StatementScenarioAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementScenarioAxis" xml:lang="en-US" id="label_StatementScenarioAxis">Statement, Scenario [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementScenarioAxis" xlink:to="label_StatementScenarioAxis" xlink:title="label: StatementScenarioAxis to label_StatementScenarioAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="AssetsAbstract" xlink:title="AssetsAbstract" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AdjustmentsToAdditionalPaidInCapitalWarrantIssued" xlink:to="label_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_2" xlink:title="label: AdjustmentsToAdditionalPaidInCapitalWarrantIssued to label_AdjustmentsToAdditionalPaidInCapitalWarrantIssued" />
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    <link:label xlink:type="resource" xlink:label="label_DeferredCompensationShareBasedPaymentsMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DeferredCompensationShareBasedPaymentsMember" xml:lang="en-US" id="label_DeferredCompensationShareBasedPaymentsMember_2">Deferred Compensation, Share-based Payments [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:label="StockIssuedDuringPeriodValueShareBasedCompensation" xlink:title="StockIssuedDuringPeriodValueShareBasedCompensation" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodValueShareBasedCompensation" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueShareBasedCompensation">Issue of common stock to certain directors and officers upon exercise of stock options, stock-based awards exercised, restricted stock units and restricted stock</link:label>
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    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueShareBasedCompensation_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodValueShareBasedCompensation" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueShareBasedCompensation_2">Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueShareBasedCompensation" xlink:to="label_StockIssuedDuringPeriodValueShareBasedCompensation_2" xlink:title="label: StockIssuedDuringPeriodValueShareBasedCompensation to label_StockIssuedDuringPeriodValueShareBasedCompensation" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:label="StockIssuedDuringPeriodValueStockOptionsExercised" xlink:title="StockIssuedDuringPeriodValueStockOptionsExercised" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodValueStockOptionsExercised" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueStockOptionsExercised">Issue of common stock upon exercise of stock options</link:label>
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    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesNewIssues" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodSharesNewIssues" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesNewIssues">Issue of common stock for cash on registered direct offering, net of expenses (in shares)</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:to="label_StockIssuedDuringPeriodSharesShareBasedCompensation_2" xlink:title="label: StockIssuedDuringPeriodSharesShareBasedCompensation to label_StockIssuedDuringPeriodSharesShareBasedCompensation" />
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    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodSharesStockOptionsExercised" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesStockOptionsExercised">Issue of common stock upon exercise of stock options (in shares)</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CostsAndExpensesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CostsAndExpensesAbstract" xml:lang="en-US" id="label_CostsAndExpensesAbstract">Operating expenses:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostsAndExpensesAbstract" xlink:to="label_CostsAndExpensesAbstract" xlink:title="label: CostsAndExpensesAbstract to label_CostsAndExpensesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_CostsAndExpensesAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostsAndExpensesAbstract" xml:lang="en-US" id="label_CostsAndExpensesAbstract_2">Costs and Expenses [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostsAndExpensesAbstract" xlink:to="label_CostsAndExpensesAbstract_2" xlink:title="label: CostsAndExpensesAbstract to label_CostsAndExpensesAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="CostsAndExpenses" xlink:title="CostsAndExpenses" />
    <link:label xlink:type="resource" xlink:label="label_CostsAndExpenses" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_CostsAndExpenses" xml:lang="en-US" id="label_CostsAndExpenses">Total operating expenses</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CostsAndExpenses_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CostsAndExpenses" xml:lang="en-US" id="label_CostsAndExpenses_2">Costs and Expenses</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LicenseAndServicesRevenue" xlink:label="LicenseAndServicesRevenue" xlink:title="LicenseAndServicesRevenue" />
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    <link:label xlink:type="resource" xlink:label="label_LicenseAndServicesRevenue_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LicenseAndServicesRevenue" xml:lang="en-US" id="label_LicenseAndServicesRevenue_2">License and Services Revenue</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DividendsPreferredStock" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_DividendsPreferredStock" xml:lang="en-US" id="label_DividendsPreferredStock">Preferred stock dividends</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DividendsPreferredStock" xlink:to="label_DividendsPreferredStock" xlink:title="label: DividendsPreferredStock to label_DividendsPreferredStock" />
    <link:label xlink:type="resource" xlink:label="label_DividendsPreferredStock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DividendsPreferredStock" xml:lang="en-US" id="label_DividendsPreferredStock_2">Dividends, Preferred Stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DividendsPreferredStock" xlink:to="label_DividendsPreferredStock_2" xlink:title="label: DividendsPreferredStock to label_DividendsPreferredStock" />
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    <link:label xlink:type="resource" xlink:label="label_SharesIssued" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="label_SharesIssued" xml:lang="en-US" id="label_SharesIssued">Balance (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SharesIssued" xlink:to="label_SharesIssued" xlink:title="label: SharesIssued to label_SharesIssued" />
    <link:label xlink:type="resource" xlink:label="label_SharesIssued_3" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="label_SharesIssued" xml:lang="en-US" id="label_SharesIssued_3">Balances (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SharesIssued" xlink:to="label_SharesIssued_3" xlink:title="label: SharesIssued to label_SharesIssued" />
    <link:label xlink:type="resource" xlink:label="label_SharesIssued_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SharesIssued" xml:lang="en-US" id="label_SharesIssued_2">Shares, Issued</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SharesIssued" xlink:to="label_SharesIssued_2" xlink:title="label: SharesIssued to label_SharesIssued" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="DepreciationDepletionAndAmortization" xlink:title="DepreciationDepletionAndAmortization" />
    <link:label xlink:type="resource" xlink:label="label_DepreciationDepletionAndAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DepreciationDepletionAndAmortization" xml:lang="en-US" id="label_DepreciationDepletionAndAmortization">Depreciation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DepreciationDepletionAndAmortization" xlink:to="label_DepreciationDepletionAndAmortization" xlink:title="label: DepreciationDepletionAndAmortization to label_DepreciationDepletionAndAmortization" />
    <link:label xlink:type="resource" xlink:label="label_DepreciationDepletionAndAmortization_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DepreciationDepletionAndAmortization" xml:lang="en-US" id="label_DepreciationDepletionAndAmortization_2">Depreciation, Depletion and Amortization</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DepreciationDepletionAndAmortization" xlink:to="label_DepreciationDepletionAndAmortization_2" xlink:title="label: DepreciationDepletionAndAmortization to label_DepreciationDepletionAndAmortization" />
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    <link:label xlink:type="resource" xlink:label="label_CommitmentsAndContingencies" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommitmentsAndContingencies" xml:lang="en-US" id="label_CommitmentsAndContingencies">Commitments and contingencies</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommitmentsAndContingencies" xlink:to="label_CommitmentsAndContingencies" xlink:title="label: CommitmentsAndContingencies to label_CommitmentsAndContingencies" />
    <link:label xlink:type="resource" xlink:label="label_CommitmentsAndContingencies_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommitmentsAndContingencies" xml:lang="en-US" id="label_CommitmentsAndContingencies_2">Commitments and Contingencies.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommitmentsAndContingencies" xlink:to="label_CommitmentsAndContingencies_2" xlink:title="label: CommitmentsAndContingencies to label_CommitmentsAndContingencies" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:title="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="label_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_2" xlink:title="label: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to label_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="AccountsPayableCurrent" xlink:title="AccountsPayableCurrent" />
    <link:label xlink:type="resource" xlink:label="label_AccountsPayableCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AccountsPayableCurrent" xml:lang="en-US" id="label_AccountsPayableCurrent">Accounts payable</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccountsPayableCurrent" xlink:to="label_AccountsPayableCurrent" xlink:title="label: AccountsPayableCurrent to label_AccountsPayableCurrent" />
    <link:label xlink:type="resource" xlink:label="label_AccountsPayableCurrent_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AccountsPayableCurrent" xml:lang="en-US" id="label_AccountsPayableCurrent_2">Accounts Payable, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccountsPayableCurrent" xlink:to="label_AccountsPayableCurrent_2" xlink:title="label: AccountsPayableCurrent to label_AccountsPayableCurrent" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="AccruedLiabilitiesCurrent" xlink:title="AccruedLiabilitiesCurrent" />
    <link:label xlink:type="resource" xlink:label="label_AccruedLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AccruedLiabilitiesCurrent" xml:lang="en-US" id="label_AccruedLiabilitiesCurrent">Accrued and other current liabilities</link:label>
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    <link:label xlink:type="resource" xlink:label="label_AccruedLiabilitiesCurrent_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AccruedLiabilitiesCurrent" xml:lang="en-US" id="label_AccruedLiabilitiesCurrent_2">Accrued Liabilities, Current</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:title="OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" />
    <link:label xlink:type="resource" xlink:label="label_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xml:lang="en-US" id="label_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent">Translation adjustment</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:title="AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsAbstract" xlink:label="CashAndCashEquivalentsAbstract" xlink:title="CashAndCashEquivalentsAbstract" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PayablesAndAccrualsAbstract" xlink:label="PayablesAndAccrualsAbstract" xlink:title="PayablesAndAccrualsAbstract" />
    <link:label xlink:type="resource" xlink:label="label_PayablesAndAccrualsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PayablesAndAccrualsAbstract" xml:lang="en-US" id="label_PayablesAndAccrualsAbstract">Accrued and Other Current Liabilities</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:title="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" />
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    <link:label xlink:type="resource" xlink:label="label_SubsequentEventsTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SubsequentEventsTextBlock" xml:lang="en-US" id="label_SubsequentEventsTextBlock_2">Subsequent Events [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SubsequentEventsTextBlock" xlink:to="label_SubsequentEventsTextBlock_2" xlink:title="label: SubsequentEventsTextBlock to label_SubsequentEventsTextBlock" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RestructuringAndRelatedActivitiesAbstract" xlink:label="RestructuringAndRelatedActivitiesAbstract" xlink:title="RestructuringAndRelatedActivitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_RestructuringAndRelatedActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RestructuringAndRelatedActivitiesAbstract" xml:lang="en-US" id="label_RestructuringAndRelatedActivitiesAbstract">Restructuring</link:label>
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    <link:label xlink:type="resource" xlink:label="label_SubsequentEventsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SubsequentEventsAbstract" xml:lang="en-US" id="label_SubsequentEventsAbstract">Subsequent Events</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SubsequentEventsAbstract" xlink:to="label_SubsequentEventsAbstract" xlink:title="label: SubsequentEventsAbstract to label_SubsequentEventsAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:label="StockholdersEquityPeriodIncreaseDecrease" xlink:title="StockholdersEquityPeriodIncreaseDecrease" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityPeriodIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockholdersEquityPeriodIncreaseDecrease" xml:lang="en-US" id="label_StockholdersEquityPeriodIncreaseDecrease">Stockholders' Equity, Period Increase (Decrease)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityPeriodIncreaseDecrease" xlink:to="label_StockholdersEquityPeriodIncreaseDecrease" xlink:title="label: StockholdersEquityPeriodIncreaseDecrease to label_StockholdersEquityPeriodIncreaseDecrease" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xlink:label="StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xlink:title="StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease">Stock Issued During Period, Shares, Period Increase (Decrease)</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" xlink:label="AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" xlink:title="AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" />
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    <link:loc xlink:type="locator" xlink:href="cycc-20111231.xsd#cycc_StockIssuedDuringPeriodValueReverseAcquisition" xlink:label="StockIssuedDuringPeriodValueReverseAcquisition" xlink:title="StockIssuedDuringPeriodValueReverseAcquisition" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueReverseAcquisition" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodValueReverseAcquisition" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueReverseAcquisition">Stock Issued During Period, Value, Reverse Acquisition</link:label>
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    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesReverseAcquisition_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StockIssuedDuringPeriodSharesReverseAcquisition" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesReverseAcquisition_2">Number of shares issued during the reporting period on reverse acquisition.</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted" xlink:label="EarningsPerShareBasicAndDiluted" xlink:title="EarningsPerShareBasicAndDiluted" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:label="NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:title="NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" />
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