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Glycerol-3-phosphate activates ChREBP, FGF21 transcription and lipogenesis in citrin deficiency
Nature Metabolism, Published online: 14 November 2025; doi:10.1038/s42255-025-01399-3In a mouse model of the rare disease citrin deficiency, the authors discovered that the accumulation of glycerol-3-phosphate leads to ChREBP activation and FGF21 induction. The study identifies glycerol-3-phosphate as a ChREBP-activating ligand, which could resolve paradoxes of FGF21 expression and clarify the logic of lipogenic transcription.