Novel Recurrent COL5A1 Genetic Variant Is Associated With a Dysplasia-Associated Arterial Disease Exhibiting Dissections and Fibromuscular Dysplasia.

CONCLUSIONS: COL5A1 c.1540G>A is the first recurring variant recognized to be associated with arterial dissections and mFMD. This variant presents with a phenotype reminiscent of vascular Ehlers-Danlos syndrome. A shared haplotype among probands supports the existence of a common founder. Relatively rare COL5A1 genetic variants predicted to be deleterious by in silico analysis were identified in ≈2.7% of mFMD cases, and as they were enriched in patients with arterial dissections, may act as disease modifiers. Molecular testing for COL5A1 should be considered in patients with a phenotype overlapping with vascular Ehlers-Danlos syndrome and mFMD.
PMID: 32938213 [PubMed - as supplied by publisher]

Source: Arteriosclerosis, Thrombosis and Vascular Biology - September 16, 2020 Category: Cardiology Authors: Richer J, Hill HL, Wang Y, Yang ML, Hunker KL, Lane J, Blackburn S, Coleman DM, Eliason J, Sillon G, D'Agostino MD, Jetty P, Mongeon FP, Laberge AM, Ryan SE, Fendrikova-Mahlay N, Coutinho T, Mathis MR, Zawistowski M, Hazen SL, Katz AE, Gornik HL, Brummett Tags: Arterioscler Thromb Vasc Biol Source Type: research