Protease-activated receptor-1 deficiency protects against streptozotocin-induced diabetic nephropathy in mice

Endogenously administered activated protein C ameliorates diabetic nephropathy (DN) in a protease-activated receptor-1 (PAR-1)-dependent manner, suggesting that PAR-1 activation limits the progression of DN. Activation of PAR-1 in fibroblast-like cells, however, induces proliferation and extracellul...

Celý popis

Uloženo v:

Podrobná bibliografie
Vydáno v:	Scientific reports Ročník 6; číslo 1; s. 33030
Hlavní autoři:	Waasdorp, Maaike, Duitman, JanWillem, Florquin, Sandrine, Spek, C. Arnold
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	London Nature Publishing Group UK 13.09.2016 Nature Publishing Group
Témata:	45/77 64/60 692/163/2743/137/138 692/4017 692/4022/1585/2759/1419 692/699/1585/2759/1419 82/80 Activated protein C Animals Atrophy Cell Proliferation Collagen (type IV) Cystatin C Diabetes Diabetes mellitus Diabetes Mellitus, Experimental - genetics Diabetes Mellitus, Experimental - metabolism Diabetes Mellitus, Experimental - pathology Diabetes Mellitus, Experimental - prevention & control Diabetic Nephropathies - genetics Diabetic Nephropathies - metabolism Diabetic Nephropathies - pathology Diabetic Nephropathies - prevention & control Diabetic nephropathy Epithelial cells Extracellular matrix Fibronectin Glucose Humanities and Social Sciences Kidney Tubules - injuries Kidney Tubules - metabolism Kidney Tubules - pathology Kidneys Mesangial cells Mesangial Cells - metabolism Mesangial Cells - pathology Mice Mice, Knockout multidisciplinary Nephropathy Protein C Proteinase Proteinase-activated receptor 1 Proteinuria Receptor, PAR-1 - deficiency Rodents Science Streptozocin
ISSN:	2045-2322, 2045-2322
On-line přístup:	Získat plný text
Tagy:	Přidat tag Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!

Popis
Shrnutí:	Endogenously administered activated protein C ameliorates diabetic nephropathy (DN) in a protease-activated receptor-1 (PAR-1)-dependent manner, suggesting that PAR-1 activation limits the progression of DN. Activation of PAR-1 in fibroblast-like cells, however, induces proliferation and extracellular matrix production, thereby driving fibrotic disease. Considering the key role of mesangial proliferation and extracellular matrix production during DN, PAR-1 may in fact potentiate diabetes-induced kidney injury. To determine the net effect of PAR-1 in DN, streptozotocin-induced DN was studied in wild type and PAR-1 deficient mice. Subsequent mechanistic insight was obtained by assessing profibrotic responses of mesangial and tubular epithelial cells in vitro , following PAR-1 stimulation and inhibition. Despite having similar glucose levels, PAR-1 deficient mice developed less kidney damage after induction of diabetes, as evidenced by diminished proteinuria, plasma cystatin C levels, expansion of the mesangial area, and tubular atrophy. In vitro , PAR-1 signaling in mesangial cells led to increased proliferation and expression of matrix proteins fibronectin and collagen IV. Conversely, a reduction in both proliferation and fibronectin deposition was observed in diabetic PAR-1 deficient mice. Overall, we show that PAR-1 plays an important role in the development of DN and PAR-1 might therefore be an attractive therapeutic target to pursue in DN.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23 Present address: Université Paris Diderot, Sorbonne Paris Cité, Département Hospitalo-universitaire FIRE (Fibrosis, Inflammation and Remodeling) and LabEx Inflamex, Paris, France. These authors contributed equally to this work. Present address: Inserm UMR1152, Physiopathologie et Epidémiologie des maladies respiratoires, Medical School Xavier Bichat, Paris, France.
ISSN:	2045-2322 2045-2322
DOI:	10.1038/srep33030