7556
In parallel, NAC was shown to down-regulate the production of cytokines by DC as well as their surface expression of HLA-DR , CD86 ( B7-2 ), and CD40 molecules both at the basal state and upon LPS activation.
 ( cell type: DC, None) , ( protein: CD86, None) , ( protein: HLA-DR, None) , ( protein: cytokines, None) , ( protein: B7-2, None) , ( protein: CD40 molecules, 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: DC, None) , ( protein: CD86, None) , ( protein: HLA-DR, None) , ( protein: cytokines, None) , ( protein: B7-2, None) , ( protein: CD40 molecules, None) 