11298
This detection suggested a preferential activation of p50/c-Rel in medullary thymocytes , whereas p50/p65 was present in both cortical and medullary regions of human thymus lobules .
 ( protein: p50/p65, None) , ( cell type: medullary thymocytes, None) , ( protein: p50/c-Rel, None) , ( cell type: thymocytes, 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: p50/p65, None) , ( cell type: medullary thymocytes, None) , ( protein: p50/c-Rel, None) , ( cell type: thymocytes, None) 