10353
Stat5 and Stat6 are transcription factors active in mammary epithelial cells and immune cells.
 epithelial cells, mammary epithelial cells, transcription factors, Stat6, Stat5
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:
 epithelial cells, mammary epithelial cells, transcription factors, Stat6, Stat5