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Exercise-induced renal tubular Cdo1 protects against diabetic nephropathy

GSE334164 Mus musculus Expression profiling by high throughput sequencing 6 samples Submitted 2026/06/09 Platform GPL34290
Summary
Exercise is an effective intervention for diabetic nephropathy (DN), but its molecular mechanisms remain incompletely understood. Here, we identify cysteine dioxygenase type 1 (Cdo1) as a mediator of exercise-induced renal protection. Exercise upregulates renal tubular Cdo1 expression via the α-ketoglutarate-TET-DNA demethylation pathway. Tubular epithelial cell-specific deletion of Cdo1 exacerbates DN and attenuates exercise-mediated alleviation of DN, whereas Cdo1 overexpression improves renal function and synergizes with exercise in ameliorating DN. Mechanistically, tubular Cdo1 promotes taurine production, which suppresses macrophage glycolysis and inflammatory activation by disrupting PKM2-HIF-1α interaction. Taurine supplementation rescues kidney injury in Cdo1-deficient mice, and alleviates DN in synergy with exercise. Thus, exercise ameliorates DN through Cdo1-mediated metabolic crosstalk between renal tubules and macrophages via the taurine-PKM2-HIF-1α axis.
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Also filed as BioProject PRJNA1466848 and SRA study SRP700894. Searching any of these in the dataset finder brings you back here.

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