10961
Despite increasing evidence that the outcome of many diseases is determined by the ratio of the two subsets of CD4(+) T helper cells , Th1 and Th2 , the molecular basis for Th1- and Th2- specific gene expression remains to be elucidated.
 ( cell type: Th2, None) , ( cell type: Th1, None) , ( cell type: CD4(+) T helper cells, 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: Th2, None) , ( cell type: Th1, None) , ( cell type: CD4(+) T helper cells, None) 