4377
The glucocorticoid -induced reduction of IL-12 production was antagonized by RU 486 , a glucocorticoid -receptor antagonist , suggesting that it was mediated by the glucocorticoid receptor.
 ( protein: IL-12, 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-12, None) 