6048
We have investigated mechanisms and consequences of STAT5 activation through the human IL-4 receptor ( IL-4R ).
 human IL-4 receptor, IL-4R, STAT5, IL-4
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:
 human IL-4 receptor, IL-4R, STAT5, IL-4