3633
E3 , a hematopoietic-specific transcript directly regulated by the retinoic acid receptor alpha .
 E3, hematopoietic-specific transcript, retinoic acid receptor alpha
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:
 E3, hematopoietic-specific transcript, retinoic acid receptor alpha