13747
The activation of NF-kappaB has been recognized to regulate a number of genes necessary for normal T cell responses including IL-2 , IL-6 , IL-8 , and several T cell surface receptors .
 ( protein: IL-8, None) , ( protein: IL-2, None) , ( protein: T cell surface receptors, None) , ( protein: IL-6, None) , ( protein: NF-kappaB, 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: IL-8, None) , ( protein: IL-2, None) , ( protein: T cell surface receptors, None) , ( protein: IL-6, None) , ( protein: NF-kappaB, None) 