3115
The apparent high frequency of IL-12 -nonresponsive Th cells within the allergen-specific populations in atopic patients predicts a limited skewing potential of IL-12 in the case of established Th2 responses , but only affecting newly recruited naive Th cells .
 ( cell line: IL-12 -nonresponsive Th cells, None) , ( protein: IL-12, None) , ( cell line: Th cells, None) , ( protein: IL-12, 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: IL-12 -nonresponsive Th cells, None) , ( protein: IL-12, None) , ( cell line: Th cells, None) , ( protein: IL-12, None) 