1819
Mouse thymoma line EL-4 cells produce cytokines such as interleukin (IL)-2 , IL-3 , IL-4 , IL-10 , and granulocyte-macrophage colony-stimulating factor in response to phorbol 12-myristate 13-acetate ( PMA ).
 ( cell line: Mouse thymoma line EL-4 cells, None) , ( protein: IL-4, None) , ( protein: interleukin (IL)-2, None) , ( protein: granulocyte-macrophage colony-stimulating factor, None) , ( protein: IL-3, None) , ( protein: cytokines, None) , ( cell line: EL-4 cells, None) , ( protein: IL-10, 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 line: Mouse thymoma line EL-4 cells, None) , ( protein: IL-4, None) , ( protein: interleukin (IL)-2, None) , ( protein: granulocyte-macrophage colony-stimulating factor, None) , ( protein: IL-3, None) , ( protein: cytokines, None) , ( cell line: EL-4 cells, None) , ( protein: IL-10, None) 