13044
We used our monoclonal model of germinal center maturation , CL-01 B cells , to investigate the role of CD30 in human B cell differentiation .
 ( protein: CD30, None) , ( cell type: CL-01 B 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:
 ( protein: CD30, None) , ( cell type: CL-01 B cells, None) 