8223
To determine whether either or both of these transcription factors are involved in cell survival or cell cycle progression in response to IL-2 , primary human T cells responsive to the growth factor were analyzed for NF-kappa B and AP-1 activation .
 ( cell type: primary human T cells, None) , ( protein: transcription factors, None) , ( protein: IL-2, 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: primary human T cells, None) , ( protein: transcription factors, None) , ( protein: IL-2, None) 