8910
The problem of the neuro-immuno interactions on the level of the protein trans-factors , stimulating interleukin-2 ( IL-2 ) gene expression was discussed.
 ( protein: protein trans-factors, None) , ( protein: interleukin-2, None) , ( protein: IL-2, None) , ( DNA: interleukin-2 ( IL-2 ) gene, 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: protein trans-factors, None) , ( protein: interleukin-2, None) , ( protein: IL-2, None) , ( DNA: interleukin-2 ( IL-2 ) gene, None) 