1732
Stimulation of T-cells by agonistic anti- CD28 antibodies in conjunction with phorbol 12-myristate 13-acetate ( PMA )- or TcR -derived signals induces the enhanced activation of the transcription factor NF-kappa B .
 ( protein: CD28, None) , ( protein: NF-kappa B, None) , ( protein: anti- CD28 antibodies, None) , ( protein: TcR, None) , ( cell type: T-cells, None) , ( protein: transcription factor, 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: CD28, None) , ( protein: NF-kappa B, None) , ( protein: anti- CD28 antibodies, None) , ( protein: TcR, None) , ( cell type: T-cells, None) , ( protein: transcription factor, None) 