12757
The addition of CD27 ligand (CD70) transfectants to B cell cultures increased the IgE synthesis synergistically in the presence of IL-4 plus anti-CD40 mAb ( anti-CD40 ).
 ( protein: anti-CD40, None) , ( protein: IgE, None) , ( protein: IL-4, None) , ( protein: anti-CD40 mAb, None) , ( cell line: B cell cultures, 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: anti-CD40, None) , ( protein: IgE, None) , ( protein: IL-4, None) , ( protein: anti-CD40 mAb, None) , ( cell line: B cell cultures, None) 