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PubMed2005

[From the molecular genetics of Alport's syndrome to principles of organo-protection in chronic renal diseases].

BACKGROUND: Scarring is known to be the endpoint of most chronic kidney diseases. Therefore, prevention of renal fibrosis is a very important topic. The hereditary type IV collagen disease Alport's syndrome is a rare, but challenging cause of chronic renal fibrosis. PATHOGENESIS OF GLOMERULAR AND INTERSTITIAL RENAL FIBROSIS IN HUMANS: Increasing knowledge about the pathogenesis of Alport's syndrome may help to find principles of nephro-protection in chronic renal diseases. The defect gene in Alport's syndrome causes an altered assembly of extracellular matrix leading to a defect cell-matrix interaction and fibrosis. This scarring is regulated by comparable mechanisms as in diabetic nephropathy or chronic inflammatory renal diseases. NEPHRO-PROTECTION IN ANIMAL MODELS: By using an Alport animal model of chronic renal fibrosis, principles of nephro-protective therapies such as blockade of the renin-angiotensin system or the effect of HMG-CoA reductase inhibitors can be investigated. CURRENT AND FUTURE NEPHRO-PROTECTION IN HUMANS: The same model serves for evaluation of new organo-protective therapies such as vasopeptidase inhibitors, blockade of endothelin, chemokine and collagen receptors as well as stem cell therapy and their potential benefit for patients with chronic renal diseases.

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