12333
Dexamethasone prevented IL-8 and tumor necrosis factor-alpha secretion in ventilated macrophages .
 ( protein: IL-8, None) , ( protein: tumor necrosis factor-alpha, None) , ( cell type: ventilated macrophages, 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:
 ( protein: IL-8, None) , ( protein: tumor necrosis factor-alpha, None) , ( cell type: ventilated macrophages, None) 