ArticleJournal of the American Heart Association2025
Transient Receptor Potential Vanilloid 4 Calcium-Permeable Channel Contributes to Valve Stiffening in Aortic Stenosis.
Article in Journal of the American Heart Association, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
3 citing papers in PubMed.
- Exploring CACNA1H as a potential candidate biomarker for calcific aortic valve disease.iScience · 2026Article
- The role of the bidirectional regulatory network between immune cells and stromal cells in cardiac repair and fibrosis following myocardial infarction.Frontiers in immunology · 2026Review
- Soft tissue mechanosensing and remodeling: the core regulatory role of Piezo/TRPV4 ion channels.Frontiers in cell and developmental biology · 2026Review
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
backgroundAortic valve stenosis (AVS) is a progressive disease characterized by fibrosis, inflammation, calcification, and stiffening of the aortic valve leaflets, leading to disrupted blood flow. If untreated, AVS can progress to heart failure and death within 2 to 5 years. Uncovering the molecular mechanisms behind AVS is key for developing effective noninvasive therapies. Emerging evidence highlights that matrix stiffness affect gene expression, inflammation, and cell differentiation. Activation of valvular interstitial cells into myofibroblasts, along with excessive extracellular matrix accumulation and remodeling, are major contributors to AVS progression. Inflammation further exacerbates the disease, as macrophages infiltrate valve leaflets, enhancing inflammation, activating valvular interstitial cells, and driving extracellular matrix remodeling. Our lab and others have shown that the activities of macrophages and fibroblasts are sensitive to matrix stiffness. Previously, we identified mechanosensitive transient receptor potential vanilloid 4 (TRPV4) channels as key regulators of fibrosis and macrophage activation, implicating TRPV4 in AVS as a potential stiffness sensor. METHODS AND
resultsHerein, we found elevated levels of TRPV4, α-smooth muscle actin, and cluster of differentiation 68 proteins in human AVS tissues compared with controls. Furthermore, the stiffening of human aortic valve tissue is associated with the levels of myofibroblasts, macrophages, and TRPV4 protein expression. In a mouse model, TRPV4 promoted valve stiffening during hypercholesterolemia-induced AVS. Additionally, TRPV4 mediated intracellular stiffness in valvular interstitial cells in response to transforming growth factor β1, which was blocked by the TRPV4 antagonist GSK2193874.
conclusionsThese findings reveal a novel mechanism linking TRPV4 to valve stiffening, providing insights into how extracellular matrix mechanical properties drive inflammation and fibrosis in AVS.
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Registered trials
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