13773
Ro 09-2210 exhibits potent anti-proliferative effects on activated T cells by selectively blocking MKK activity .
 ( cell type: T cells, None) , ( protein: MKK, 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: T cells, None) , ( protein: MKK, None) 