12669
Type I IFNs ( IFN-alpha/beta ), in addition to IL-12 , have been shown to play an important role in the differentiation of human, but not mouse, Th cells .
 ( protein: IFN-alpha/beta, None) , ( cell type: Th cells, None) , ( protein: Type I IFNs, None) , ( protein: IL-12, 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-alpha/beta, None) , ( cell type: Th cells, None) , ( protein: Type I IFNs, None) , ( protein: IL-12, None) 