1372
The element is not activated upon infection of established EBV -negative B-cell lines , indicating that EBV fails to drive these cells to a fully lymphoblastoid phenotype .
 ( cell type: lymphoblastoid phenotype, None) , ( cell line: EBV -negative B-cell 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 type: lymphoblastoid phenotype, None) , ( cell line: EBV -negative B-cell lines, None) 