2418
We observed that RA did not induced neutrophil differentiation in serum-free grown HL60 cells whereas 50 nM 1 alpha,25-dihydroxyvitamin D3 ( D3 ) induced maximal monocyte differentiation .
 ( cell line: HL60 cells, None) , ( cell line: serum-free grown HL60 cells, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( cell line: HL60 cells, None) , ( cell line: serum-free grown HL60 cells, None) 