2443
Northern analysis of mRNA from hypoxic ECs also demonstrated increased levels of mRNA for macrophage chemotactic protein-1 , another member of the chemokine superfamily of proinflammatory cytokines .
 ( cell type: ECs, None) , ( protein: macrophage chemotactic protein-1, None) , ( protein: proinflammatory cytokines, None) , ( RNA: mRNA, None) , ( protein: chemokine superfamily, 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: ECs, None) , ( protein: macrophage chemotactic protein-1, None) , ( protein: proinflammatory cytokines, None) , ( RNA: mRNA, None) , ( protein: chemokine superfamily, None) 