Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 22, Issue 20, Pages -Publisher
MDPI
DOI: 10.3390/ijms222011063
Keywords
Alport syndrome; hereditary kidney disease; chronic kidney disease; collagen; COL4A
Funding
- Instituto de Salud Carlos III under FIS/FEDER funds [PI15/01467, PI18/00378]
- Xunta de Galicia [IN607B-2016/020, ED481A-2020/204]
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Alport syndrome is a rare genetic disease caused by mutations in collagen genes, primarily affecting the glomerular basement membrane of the kidney. It has renal involvement as the main manifestation, and may also present with hearing loss and ocular problems. There is no specific treatment currently available, but advances in genetic research and diagnosis are helping to better understand the disease.
Alport syndrome is a genetic and hereditary disease, caused by mutations in the type IV collagen genes COL4A3, COL4A4 and COL4A5, that affects the glomerular basement membrane of the kidney. It is a rare disease with an underestimated prevalence. Genetic analysis of population cohorts has revealed that it is the second most common inherited kidney disease after polycystic kidney disease. Renal involvement is the main manifestation, although it may have associated extrarenal manifestations such as hearing loss or ocular problems. The degree of expression of the disease changes according to the gene affected and other factors, known or yet to be known. The pathophysiology is not yet fully understood, although some receptors, pathways or molecules are known to be linked to the disease. There is also no specific treatment for Alport syndrome; the most commonly used are renin-angiotensin-aldosterone system inhibitors. In recent years, diagnosis has come a long way, thanks to advances in DNA sequencing technologies such as next-generation sequencing (NGS). Further research at the genetic and molecular levels in the future will complete the partial vision of the pathophysiological mechanism that we have, and will allow us to better understand what is happening and how to solve it.
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