449
We examined mRNA levels of various V-ATPase subunits during differentiation of both native monocytes and the cell line THP-1 , and found that transcriptional and post-transcriptional mechanisms could account for increases in cell V-ATPase content .
 ( cell line: THP-1, None) , ( cell type: native monocytes, None) , ( cell line: cell line, None) , ( protein: V-ATPase, None) , ( RNA: mRNA, None) , ( protein: V-ATPase, 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: THP-1, None) , ( cell type: native monocytes, None) , ( cell line: cell line, None) , ( protein: V-ATPase, None) , ( RNA: mRNA, None) , ( protein: V-ATPase, None) 