6467
Direct interaction of hematopoietic transcription factors PU.1 and GATA-1 : functional antagonism in erythroid cells .
 erythroid cells
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:
 erythroid cells