title: Matrix metalloproteinases: their potential role in the pathogenesis of diabetic nephropathy.
abstract: Matrix metalloproteinases (MMPs), a family of proteinases including collagenases, gelatinases, stromelysins, matrilysins, and membrane-type MMPs, affect the breakdown and turnover of extracellular matrix (ECM). Moreover, they are major physiologic determinants of ECM degradation and turnover in the glomerulus. Renal hypertrophy and abnormal ECM deposition are hallmarks of diabetic nephropathy (DN), suggesting that altered MMP expression or activation contributes to renal injury in DN. Herein, we review and summarize recent information supporting a role for MMPs in the pathogenesis of DN. Specifically, studies describing dysregulated activity of MMPs and/or their tissue inhibitors in various experimental models of diabetes, including animal models of type 1 or type 2 diabetes, clinical investigations of human type 1 or type 2 diabetes, and kidney cell culture studies are reviewed.
authors.affiliation: Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72202, USA. thrailkillkathrynm@uams.edu
authors.forename: Kathryn M
authors.initials: KM
authors.lastname: Thrailkill
authors.forename: R
authors.initials: R
authors.lastname: Clay Bunn
authors.forename: John L
authors.initials: JL
authors.lastname: Fowlkes
mesh_terms: D000818:Animals; D017364:Collagenases / Q000502:physiology; D003928:Diabetic Nephropathies / Q000209:etiology*; D004195:Disease Models, Animal; D018093:Gelatinases / Q000502:physiology; D006801:Humans; D019278:Matrix Metalloproteinase 3 / Q000502:physiology; D020783:Matrix Metalloproteinase 7 / Q000502:physiology; D020782:Matrix Metalloproteinases / Q000502:physiology*; D053504:Matrix Metalloproteinases, Membrane-Associated / Q000502:physiology; D019714:Tissue Inhibitor of Metalloproteinases / Q000502:physiology
chemical_list: D019714:Tissue Inhibitor of Metalloproteinases; D017364:Collagenases; D018093:Gelatinases; D020782:Matrix Metalloproteinases; D053504:Matrix Metalloproteinases, Membrane-Associated; D019278:Matrix Metalloproteinase 3; D020783:Matrix Metalloproteinase 7