15022
When cells were treated with IL-4 for 5 hours before LPS activation, both the c-fos and the c-jun mRNA expression was decreased.
 ( protein: IL-4, 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-4, None) 