6280
These complexes arise in a developmentally regulated pattern, peaking at the promyelocyte stage , or in cell model systems , appearing soon after the induction of monocytic differentiation .
 ( cell type: promyelocyte stage, None) , ( cell line: cell model systems, 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: promyelocyte stage, None) , ( cell line: cell model systems, None) 