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Treatment of U937 with IFN-gamma for 9 hr in the presence of cycloheximide led to super-induction of Fc gamma RI expression.
 ( protein: Fc gamma RI, None) , ( protein: IFN-gamma, None) , ( cell line: U937, 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: Fc gamma RI, None) , ( protein: IFN-gamma, None) , ( cell line: U937, None) 