6916
Four of the 6 mAECA activated EC , manifested by increased IL-6 and vWF secretion .
 ( cell line: activated EC, None) , ( protein: mAECA, None) , ( protein: IL-6, 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: activated EC, None) , ( protein: mAECA, None) , ( protein: IL-6, None) 