7639
CONCLUSIONS: HCS forcefully blocks the production of IL-2 ; the IL-2R alpha-chain ; and Jak1 , Jak3 , Stat1 , Stat3 , and Stat5 expression .
 ( protein: IL-2, None) , ( protein: IL-2R alpha-chain, 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: IL-2, None) , ( protein: IL-2R alpha-chain, None) 