10449
Interleukin-12 ( IL-12 ) is a cytokine that exhibits pleiotropic effects on lymphocytes and natural killer cells and has been shown to have promise for the immunotherapy of cancer.
 ( cell type: natural killer cells, None) , ( protein: IL-12, None) , ( protein: Interleukin-12, None) , ( protein: cytokine, None) , ( cell type: lymphocytes, 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: natural killer cells, None) , ( protein: IL-12, None) , ( protein: Interleukin-12, None) , ( protein: cytokine, None) , ( cell type: lymphocytes, None) 