Expression of gelatinases (MMP-2, MMP-9) in human articular cartilage.
Osteoarthritis (OA) is a chronic degenerative joint disorder characterized by destruction of the articular cartilage, subchondral bone alterations and synovitis. Matrix metalloproteinases (MMPs) are expressed in joint tissues of patients with osteoarthritis (OA). The objective of this study was to define the steady state levels of two different MMPs to provide more insight into the role of MMPs in cartilage destruction in OA. We investigated the expression of gelatinases through immunohistochemistry Our results show that high levels of MMP-2 and MMP-9 are present in OA and suggest that once these MMPs are fully activated they may contribute to the cartilage destruction in OA.
Department of Experimental Biomedicine and Clinical Neurosciences, Section of Histology and Embryology, University of Palermo, Palermo, Italy.
L
L
Lipari
A
A
Gerbino
D002358:Cartilage, Articular / Q000201:enzymology* / Q000473:pathology; D016022:Case-Control Studies; D006801:Humans; D007150:Immunohistochemistry; D020778:Matrix Metalloproteinase 2 / Q000032:analysis*; D020780:Matrix Metalloproteinase 9 / Q000032:analysis*; D015207:Osteoarthritis, Hip / Q000201:enzymology* / Q000473:pathology; D020370:Osteoarthritis, Knee / Q000201:enzymology* / Q000473:pathology; D015854:Up-Regulation
C522361:MMP2 protein, human; D020778:Matrix Metalloproteinase 2; C579270:MMP9 protein, human; D020780:Matrix Metalloproteinase 9