6685
PNU156804 action is restricted to some signaling pathways ; it does not affect NF-kappa B activation by PMA in T cells but blocks that induced by CD40 cross-linking in B lymphocytes .
 ( cell type: B lymphocytes, None) , ( cell type: T cells, None) , ( protein: CD40, 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:
 ( cell type: B lymphocytes, None) , ( cell type: T cells, None) , ( protein: CD40, None) , ( protein: NF-kappa B, None) 