11243
In addition, RNase protection assays revealed that anti-CD3/ PMA -stimulated T cells from a substantial proportion of elderly subjects exhibited decreased levels of c-fos and/or c-jun mRNA compared to T cells from young subjects .
 ( cell type: PMA -stimulated T cells, None) , ( cell type: T cells, None) , ( protein: RNase, 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: PMA -stimulated T cells, None) , ( cell type: T cells, None) , ( protein: RNase, None) 