12999
We propose that one of the targets of PGE2 , whose effect distinguishes Th1 from Th2 , resides in the downstream PKC/Ras -mediated pathway .
 ( cell line: Th1, None) , ( protein: PKC/Ras, 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 line: Th1, None) , ( protein: PKC/Ras, None) 