7442
In addition, blocking TNF , itself a positive regulator of NF-kappaB , with neutralizing antibodies renders the cells more susceptible to anti-Fas-mediated apoptosis .
 ( protein: NF-kappaB, None) , ( protein: neutralizing antibodies, None) , ( protein: TNF, 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: NF-kappaB, None) , ( protein: neutralizing antibodies, None) , ( protein: TNF, None) 