8609
These results advance the molecular understanding of opioid effects on lymphocytes , and in addition, demonstrate regulation of IL-2 synthesis and secretion by the novel mechanism of receptor-mediated AP-1 induction .
 ( protein: AP-1, None) , ( cell type: lymphocytes, None) , ( protein: IL-2, 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: AP-1, None) , ( cell type: lymphocytes, None) , ( protein: IL-2, None) 