8690
We further show that subdominant latent cycle reactivities to epitopes in the latent membrane protein LMP2 , though rarely undetectable in LCL -stimulated populations , can be reactivated by DC stimulation and selectively expanded as polyclonal CTL lines ; the adoptive transfer of such preparations may be of value in targeting certain EBV-positive malignancies .
 ( cell line: LCL, None) , ( protein: latent membrane protein LMP2, None) , ( cell line: CTL lines, 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: LCL, None) , ( protein: latent membrane protein LMP2, None) , ( cell line: CTL lines, None) 