8554
Heterokaryons formed by the fusion of anergic murine T cells to normal murine T cells also failed to accumulate intracellular IL-2 protein in response to stimulation either with the combination of CD3 and CD28 mAbs or with ionomycin plus a protein kinase C -activating phorbol ester .
 anergic murine T cells, intracellular IL-2 protein, CD3, Heterokaryons, normal murine T cells, CD28 mAbs, protein kinase C
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:
 anergic murine T cells, intracellular IL-2 protein, CD3, Heterokaryons, normal murine T cells, CD28 mAbs, protein kinase C