8705
Here we demonstrate that fusion of HeLa cells with either diploid or tetraploid B cells ( Daudi ) results in widespread extinction of several other B cell-encoded genes that are expressed in a B cell-specific manner .
 ( cell line: Daudi, None) , ( DNA: B cell-encoded genes, None) , ( cell line: HeLa cells, 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: Daudi, None) , ( DNA: B cell-encoded genes, None) , ( cell line: HeLa cells, None) 