1098
We have examined the feasibility of using interferon ( IFN ) gene transfer as a novel approach to anti- human immunodeficiency virus type 1 (HIV-1) therapy in this study.
 ( protein: IFN, None) , ( protein: interferon, 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:
 ( protein: IFN, None) , ( protein: interferon, None) 