8787
In patients whose infiltration of c-fos-positive lymphocytes into tumor tissues were moderate or remarkable at 4 Gy of radiotherapy , the tumors responded significantly well to radiation therapy (P < 0.025, chi2 test), and the patients took a significantly favorable clinical course (P < 0.05, chi2 test).
 ( protein: c-fos-positive lymphocytes, 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: c-fos-positive lymphocytes, None) 