8050
We have shown previously that trifluoromethylketone inhibitors of cytosolic phospholipase A2 suppressed interleukin-1beta protein and steady-state mRNA levels in human lipopolysaccharide -stimulated peripheral blood mononuclear leukocytes .
 ( protein: interleukin-1beta protein, None) , ( cell type: mononuclear leukocytes, None) , ( protein: cytosolic phospholipase A2, None) , ( cell type: lipopolysaccharide -stimulated peripheral blood mononuclear leukocytes, 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: interleukin-1beta protein, None) , ( cell type: mononuclear leukocytes, None) , ( protein: cytosolic phospholipase A2, None) , ( cell type: lipopolysaccharide -stimulated peripheral blood mononuclear leukocytes, None) 