11842
These results indicate that IL-6 -induced B-cell differentiation , as measured by IgM production , may be controlled by Stat3 proteins .
 ( protein: Stat3, None) , ( protein: Stat3 proteins, None) , ( protein: IgM, None) , ( protein: IL-6, 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: Stat3, None) , ( protein: Stat3 proteins, None) , ( protein: IgM, None) , ( protein: IL-6, None) 