10349
Stat ( signal transducers and activators of transcription ) and Jak ( Janus kinases ) proteins are central components in the signal transduction events in hematopoietic and epithelial cells .
 Janus kinases, signal transducers and activators of transcription, Jak, Stat
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:
 Janus kinases, signal transducers and activators of transcription, Jak, Stat