NDT Advance Access originally published online on April 2, 2008
Nephrology Dialysis Transplantation 2008 23(6):1823-1825; doi:10.1093/ndt/gfn129
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© The Author [2008]. Published by Oxford University Press on behalf of ERA-EDTA. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org
Understanding renal disorders as systemic diseases: the fascinating world of basement membranes beyond the glomerulus*
Department of Nephrology and Rheumatology, University of Göttingen, Göttingen, Germany
Correspondence and offprint requests to: Oliver Gross, Department of Nephrology and Rheumatology, University Hospital Göttingen, Robert-Koch Str. 40, D-37075 Göttingen, Germany. Tel: +49-551-39-6331; Fax: +49-551-39-8906; E-mail: gross.oliver@med.uni-goettingen.de
Keywords: Alport syndrome; chronic renal fibrosis; extracellular matrix; glomerular basement membrane; type IV collagen
| The first 10% of the full text of this article appears below. |
In the 27 December 2007 issue of the New England Journal of Medicine, Plaisier and colleagues [1] describe fascinating data on a new spectrum of autosomal dominant hereditary collagen diseases involving the COL4A1 gene. This gene codes for the
1-chain of type IV collagen, being the most important structural component of all basement membranes throughout the body. The paper was highly publicized and completes a trilogy of manuscripts about collagen type IV
1-chain mutations causing neonatal porencephaly, adult stroke, perinatal cerebral haemorrhage, skin lesions and nephropathies [1–3].
All basement membranes consist of a network of type IV collagen. Collagen IV monomers contain a long triple helical rod built by >1000 Gly-X-Y repeats, which is terminated at its C-terminal end by a globular NC1 domain, well known to nephrologists due to Goodpasture syndrome (Figure 1). In contrast to
-chains
(a) Can nephrologists knowledge about the glomerular basement membrane explain the clinical manifestations of COL4A1 mutations?
(b) Can nephrologists knowledge about the glomerular basement membrane predict the phenotype–genotype correlation in COL4A1-mutations?
(c) If nephrologists understand the glomerular matrix, will we understand the fascinating world beyond?
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