8950
The repetitive activation of T cells (priming) enhances the expression of many cytokines , such as IL-4, but not others, such as IL-2 .
 ( cell type: T cells, None) , ( protein: IL-2, 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:
 ( cell type: T cells, None) , ( protein: IL-2, None) , ( protein: cytokines, None) 