8614
These cells, stimulated by an agonistic monoclonal antibody against CD40 or by transfection with a CD40L expression vector , secreted p40 and showed enhanced p40 mRNA expression .
 ( protein: CD40L, None) , ( protein: CD40, None) , ( DNA: CD40L expression vector, None) , ( RNA: p40 mRNA, None) , ( protein: p40, None) , ( protein: p40, 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: CD40L, None) , ( protein: CD40, None) , ( DNA: CD40L expression vector, None) , ( RNA: p40 mRNA, None) , ( protein: p40, None) , ( protein: p40, None) 