12755
The induction of IgE switching in B cells requires several signals given by cytokines and cell contact-delivered signals.
 ( protein: IgE, None) , ( cell type: B cells, None) , ( protein: cytokines, 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: IgE, None) , ( cell type: B cells, None) , ( protein: cytokines, None) 