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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.
 human peripheral blood T cells, TCR, jak kinases, IL-2, IFN-gamma, transcription factor, STAT1(alpha)
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 human peripheral blood T cells, TCR, jak kinases, IL-2, IFN-gamma, transcription factor, STAT1(alpha)