9688
These data show that some transcription factors associated with cytokine signalling can also activate the CRH promoter .
 cytokine, transcription factors, CRH, CRH promoter
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:
 cytokine, transcription factors, CRH, CRH promoter