3986
Studies on unicellular and paired daughter cell culture unequivocally indicate that the shift is mediated by modulation of the HPC differentiation program to the granulopoietic pathway (rather than RA-induced down-modulation of multipotent /erythroid /monocytic HPC growth coupled with recruitment of granulocytic HPCs ).
 ( cell type: granulocytic HPCs, None) , ( cell type: HPCs, 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: granulocytic HPCs, None) , ( cell type: HPCs, None) 