14684
In contrast, AP-1 from PHA-activated cells contains c-Jun and low levels of c-Fos .
 c-Fos, c-Jun, PHA-activated cells, 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:
 c-Fos, c-Jun, PHA-activated cells, AP-1