ArticleInternational journal of molecular sciences2026
Lactate Promotes Endothelial-Mesenchymal Transition via Mediating Twist1 Lactylation in Hypoxic Pulmonary Hypertension.
Article in International journal of molecular sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
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Authors and funding
6 authors.
Funding
Abstract
Elevated plasma lactate is a significant risk factor in pulmonary hypertension (PH), and endothelial-mesenchymal transition (EndoMT) is a major contributor to this pathological process, yet its specific role in driving endothelial-mesenchymal transition (EndoMT) remains unclear. Using in vivo and in vitro models, we demonstrate that modulating lactate levels critically influences PH progression. In a hypoxic PH mouse model, inhibition of lactate production ameliorated hemodynamic and vascular remodeling, whereas exogenous lactate exacerbated these pathologies. In human pulmonary arterial endothelial cells under hypoxia, lactate promoted a pro-remodeling phenotype, enhancing migration, proliferation, and EndoMT. Mechanistically, lactate induced Twist1 lactylation via enhanced association with p300/CBP, promoting its nuclear translocation. This upregulated TGFB1 transcription and activated the Smad2 pathway, thereby driving EndoMT-an effect abolished by Twist1 knockdown. Our findings reveal a previously unrecognized lactate-Twist1 lactylation-TGFB1 axis that promotes vascular remodeling in PH, identifying novel therapeutic targets.
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