13860
Thus, PPARgamma is present in macrophages in human atherosclerotic lesions and may regulate expression and activity of MMP-9 , an enzyme implicated in plaque rupture .
 ( protein: PPARgamma, None) , ( cell type: macrophages, None) , ( protein: MMP-9, 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: PPARgamma, None) , ( cell type: macrophages, None) , ( protein: MMP-9, None) 