ArticleArteriosclerosis, thrombosis, and vascular biology2026
Aortic Stenosis Hyalectan Remodeling Revealed by Proteomics and Glycoproteomics.
Article in Arteriosclerosis, thrombosis, and vascular biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundCalcific aortic valve (AV) disease (CAVD) is recognized as an active pathological process involving extracellular matrix remodeling. This study investigates extracellular matrix remodeling through proteomic analysis and a novel mouse model of aortic stenosis.
methodsProteomic and glycoproteomic analyses were conducted on AV leaflets from heart transplant donors (n=29) and patients with CAVD (n=17). Each CAVD sample was subdivided into noncalcified and calcified regions. To investigate the functional impact of extracellular matrix remodeling on aortic stenosis, we crossed apolipoprotein E-deficient mice (
resultsProteomic and glycoproteomic analyses revealed hyalectan accumulation in CAVD compared with control valves. Versican predominated in noncalcified regions, while aggrecan was enriched in calcified regions. The shift in hyalectan composition correlated with changes in AV pressure gradient, elevated osteoblast-like cell markers, and inflammatory proteins, most notably pentraxin 3. Both versican and aggrecan are characterized by their ability to bind hyaluronan and serve as substrates of ADAMTS5. In
conclusionsThis study highlights hyaluronan remodeling during aortic stenosis pathogenesis. A shift from versican to aggrecan in human CAVD correlates with changes in AV pressure gradient. In
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