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 .
 p50/p65, medullary thymocytes, p50/c-Rel, thymocytes
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 p50/p65, medullary thymocytes, p50/c-Rel, thymocytes