6259
OM10.1 , a promyelocyte cell line latently infected with HIV-1 , has been developed as a model for studying the mechanism of viral latency and the activation of virus expression .
 ( cell line: OM10.1, None) , ( cell line: promyelocyte cell line, 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: OM10.1, None) , ( cell line: promyelocyte cell line, None) 