6205
Different types of acute myeloid leukemia blast cells were induced to differentiate in vitro with all-trans-retinoic acid ( ATRA ) and vitamin D3 ( VD ).
 ( cell type: acute myeloid leukemia blast 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 type: acute myeloid leukemia blast cells, None) 