11240
The activation of transcriptional factor c-Fos/c-Jun AP-1 is essential for normal T cell responsiveness and is often impaired in T cells during aging .
 T cells, T cell, transcriptional factor, AP-1
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:
 T cells, T cell, transcriptional factor, AP-1