10960
Interleukin-5 ( IL-5 ), which is produced by CD4(+) T helper 2 (Th2) cells , but not by Th1 cells , plays a key role in the development of eosinophilia in asthma .
 ( protein: Interleukin-5, None) , ( cell type: CD4(+) T helper 2 (Th2) cells, None) , ( cell type: Th1 cells, None) , ( protein: IL-5, 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: Interleukin-5, None) , ( cell type: CD4(+) T helper 2 (Th2) cells, None) , ( cell type: Th1 cells, None) , ( protein: IL-5, None) 