4558
The resting and stimulated levels of NF kappa B were reduced in T cells from certain elderly individuals ; however, alterations of NF kappa B did not correlate with changes in IL-2 expression .
 ( protein: NF kappa B, None) , ( protein: IL-2, None) , ( protein: NF kappa B, None) , ( cell type: T 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:
 ( protein: NF kappa B, None) , ( protein: IL-2, None) , ( protein: NF kappa B, None) , ( cell type: T cells, None) 