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We find that iNO produced by murine macrophage-like cells , RAW264.7 , can inhibit cytokine -induced endothelial cell activation in a separated and mixed endothelial-RAW264.7 coculture system .
 ( cell line: RAW264.7, None) , ( cell line: endothelial-RAW264.7, None) , ( cell line: endothelial-RAW264.7 coculture system, None) , ( protein: cytokine, None) , ( cell line: murine macrophage-like cells, 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 line: RAW264.7, None) , ( cell line: endothelial-RAW264.7, None) , ( cell line: endothelial-RAW264.7 coculture system, None) , ( protein: cytokine, None) , ( cell line: murine macrophage-like cells, None) 