794
The objective of this study was to investigate the involvement of the newly discovered Jak -STAT pathway in the IL-5 signal transduction mechanism .
 Jak, IL-5, -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:
 Jak, IL-5, -STAT