4370
The IFN -dependent increase in RAR(alpha) levels and the enhancing effect of the cytokine on retinoid -dependent granulocytic markers expression may be a characteristic of PML-RAR positive cells , since the phenomena are not observed in HL-60 promyelocytes .
 ( cell line: PML-RAR positive cells, None) , ( cell line: HL-60 promyelocytes, None) , ( protein: IFN, None) , ( protein: cytokine, None) , ( protein: RAR(alpha), None) , ( protein: PML-RAR, None) , ( protein: retinoid -dependent granulocytic markers, 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: PML-RAR positive cells, None) , ( cell line: HL-60 promyelocytes, None) , ( protein: IFN, None) , ( protein: cytokine, None) , ( protein: RAR(alpha), None) , ( protein: PML-RAR, None) , ( protein: retinoid -dependent granulocytic markers, None) 