ArticleInternational journal of biological sciences2025
Endothelial SIRT3 deficiency predisposes brown adipose tissue to whitening in diet-induced obesity.
Article in International journal of biological sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
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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, 1 synthesis or guideline pooled it.
- SIRT3 in post-myocardial infarction macrophage reprogramming: linking mitochondrial fitness to inflammation resolution and repair.Frontiers in immunology · 2026Pooled it
- Decoding Adipose Tissue Phenotypic Switching: From Mechanisms to Computational Drug Discovery.Current obesity reports · 2026Review
- The multifaceted role of post-translational modifications in macrophage polarization: from mechanisms to therapeutic targets.Frontiers in immunology · 2025Review
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Authors and funding
20 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Endothelial dysfunction and vascular rarefaction are supposed to be secondary to metabolic diseases, while recent evidence has revealed the primary roles of endothelium in initiating and accelerating metabolic disorders. Here, the effects and underlying mechanisms of endothelial SIRT3 in modulating the whitening of BAT during obesity progression were explored. Therefore, mice with global or BAT regional endothelium-specific Sirt3 knockout were constructed and fed with high-fat diet (HFD). The results showed that both global and BAT regional endothelium-specific Sirt3 knockout accelerated diet-induced weight gain, accompanied by glucose intolerance, insulin resistance, and BAT whitening. In vitro results revealed that the inhibition or knockdown of endothelial Sirt3 impeded palmitic acid-induced angiogenesis deficiency, while the overexpression of Sirt3 exhibited the opposite effects. Furtherly, endothelial Sirt3 overexpression ameliorated palmitic acid-induced adipocyte dysfunction and proinflammatory macrophages polarization in a paracrine way. Mechanistically, endothelial SIRT3 deficiency increased the acetylation of fatty acid synthase (FASN), which disturbed the fatty acid metabolism and thus, leading to angiogenesis insufficiency. Moreover, loss of SIRT3 promoted adipocytes dysfunction and proinflammatory macrophage polarization via CASP1-mediated pyroptosis. Endothelial SIRT3 loss contributed to diet-induced BAT whitening and obesity progression and thus, could be a therapeutic target in treating obesity and associated metabolic diseases.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.