9639
The generality of this finding was confirmed by the induction of Bcl-xL in human myeloid U-937 cells , human peripheral blood monocytes exposed to phorbol ester , and mouse thioglycollate-activated and resident peritoneal macrophages .
 ( protein: Bcl-xL, None) , ( cell line: mouse thioglycollate-activated and resident peritoneal macrophages, None) , ( cell line: human myeloid U-937 cells, None) , ( cell type: human peripheral blood monocytes, 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: Bcl-xL, None) , ( cell line: mouse thioglycollate-activated and resident peritoneal macrophages, None) , ( cell line: human myeloid U-937 cells, None) , ( cell type: human peripheral blood monocytes, None) 