704
The HEL cells also exhibited a similar elevation of AhR mRNA level , when they had differentiated toward monocyte-macrophage cells by these combined inducers, but little change in the mRNA level was observed when the cells were induced to differentiate into other cell types.
 ( cell type: monocyte-macrophage cells, None) , ( cell line: HEL cells, None) , ( protein: AhR, None) , ( RNA: AhR mRNA, 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: monocyte-macrophage cells, None) , ( cell line: HEL cells, None) , ( protein: AhR, None) , ( RNA: AhR mRNA, None) 