ArticleThe Journal of clinical investigation2026
c-KIT expands the tool kit for treating arteriovenous malformation.
Article in The Journal of clinical investigation, 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
Hereditary hemorrhagic telangiectasia (HHT) is characterized by fragile, enlarged vessels with arteriovenous connections, which can form arteriovenous malformations (AVMs) that are prone to rupture. It is driven by mutations in TGF‑β pathway genes that disrupt endothelial cell responses and blood vessel remodeling. Two studies published in this issue of the JCI identify c‑KIT as a central mediator of HHT vascular pathology. Gahn et al. showed that SMAD4 loss derepressed c‑KIT, whose activity in the junctional mechanosensory receptor complex of endothelial cells reset the fluid shear stress set point to drive maladaptive vascular remodeling. Drapé et al. demonstrated that ALK1 loss in a mouse model of HHT induced a regional pro‑angiogenic c‑KIT+ endothelial state in brain AVMs. Both studies showed that pharmacologic c-KIT inhibition mitigated disease, revealing an unexpected, potentially ligand‑independent role for c‑KIT and highlighting a promising therapeutic target.
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