7153
Upon HBsAg stimulation, expression of IFN-gamma , IL-2 , IL-4 , and IL-10 was detected in 41%, 8%, 41%, and 50% of the patients , respectively.
 ( protein: IFN-gamma, None) , ( protein: IL-4, None) , ( protein: IL-10, None) , ( protein: IL-2, None) , ( protein: HBsAg, 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: IFN-gamma, None) , ( protein: IL-4, None) , ( protein: IL-10, None) , ( protein: IL-2, None) , ( protein: HBsAg, None) 