4752
it became irreversible, however, upon simultaneous treatment with dexamethasone and transforming growth factor-beta 1 ( TGF-beta 1 ), which did not induce differentiation of U937 cells but caused growth arrest of the cells in the G0/G1 phase of the cell cycle .
 ( protein: transforming growth factor-beta 1, None) , ( cell line: U937 cells, None) , ( protein: TGF-beta 1, 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: transforming growth factor-beta 1, None) , ( cell line: U937 cells, None) , ( protein: TGF-beta 1, None) 