9944
In most cells, Rel/NF-kappa B transcription factors appear to mediate survival signals that protect cells from apoptosis ; however, under some circumstances, activation of these factors may also promote apoptosis .
 ( protein: Rel/NF-kappa B, None) , ( protein: transcription factors, 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:
 ( protein: Rel/NF-kappa B, None) , ( protein: transcription factors, None) 