6761
OBJECTIVE: We investigated the effect of DEP- PAHs on the release and mRNA expression of IL-8 , MCP-1 , and RANTES by PBMCs obtained from healthy subjects .
 ( RNA: mRNA, None) , ( protein: MCP-1, None) , ( cell type: PBMCs, None) , ( protein: RANTES, None) , ( protein: IL-8, 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:
 ( RNA: mRNA, None) , ( protein: MCP-1, None) , ( cell type: PBMCs, None) , ( protein: RANTES, None) , ( protein: IL-8, None) 