6466
The regulation of the production or activity of C/EBP beta , to inhibit inflammatory mediator expression by synovial macrophages and fibroblasts , offers a novel approach to therapeutic intervention.
 ( cell type: fibroblasts, None) , ( protein: C/EBP beta, None) , ( cell type: synovial 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:
 ( cell type: fibroblasts, None) , ( protein: C/EBP beta, None) , ( cell type: synovial macrophages, None) 