3985
Both compounds modulate the growth of purified FL HPCs , which show a dose-dependent shift from mixed / erythroid / monocytic to granulocytic colony formation .
 purified FL HPCs, HPCs
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:
 purified FL HPCs, HPCs