7470
We investigated whether E2 and Prog could interfere with TNF-alpha -induced apoptosis of the monoblastoid U937 cell line .
 ( cell line: monoblastoid U937 cell line, None) , ( protein: TNF-alpha, 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 line: monoblastoid U937 cell line, None) , ( protein: TNF-alpha, None) 