10393
The regulation of NF-kappa B activation following the triggering of HLA-DR antigens by mAb L243 has been studied at various times in Raji cells .
 ( protein: HLA-DR antigens, None) , ( cell line: Raji cells, None) , ( protein: mAb L243, None) , ( protein: NF-kappa B, 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: HLA-DR antigens, None) , ( cell line: Raji cells, None) , ( protein: mAb L243, None) , ( protein: NF-kappa B, None) 