5714
Using a novel flow-cytometric assay , we were able to identify CD8(+)-T-cell epitopes (by IE-1 peptide-specific induction of cytokine synthesis ) and simultaneously measure the frequency of cells directed against them.
 ( protein: cytokine, None) , ( protein: CD8(+)-T-cell epitopes, None) , ( protein: IE-1, 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: cytokine, None) , ( protein: CD8(+)-T-cell epitopes, None) , ( protein: IE-1, None) 