7458
The cell type-specific activation of STAT3 by IFN-gamma was also observed in neutrophils that are differentiated in vitro from human CD34+ hematopoietic stem cells .
 STAT3, human CD34+ hematopoietic stem cells, IFN-gamma, neutrophils
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:
 STAT3, human CD34+ hematopoietic stem cells, IFN-gamma, neutrophils