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In this work, we show that human peripheral blood T cells that are stimulated through the TCR and expanded with IL-2 are unresponsive to IFN-gamma , as determined by a lack of activation of jak kinases and the transcription factor , STAT1(alpha) , a signal transducer and activator of transcription.
 ( cell type: human peripheral blood T cells, None) , ( protein: TCR, None) , ( protein: jak kinases, None) , ( protein: IL-2, None) , ( protein: IFN-gamma, None) , ( protein: transcription factor, None) , ( protein: STAT1(alpha), None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( cell type: human peripheral blood T cells, None) , ( protein: TCR, None) , ( protein: jak kinases, None) , ( protein: IL-2, None) , ( protein: IFN-gamma, None) , ( protein: transcription factor, None) , ( protein: STAT1(alpha), None) 