ArticleNature communications2026
TGFβ-activated PDHB promotes mitochondrial pyruvate metabolism and contributes to human endoderm differentiation via ATP-dependent BRG1.
Article in Nature communications, 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
Cell fate determination is closely linked to metabolic state, yet how metabolic remodeling influences human pluripotent stem cells differentiation into three germ layers remains incompletely understood. Here, we reveal that definitive endoderm differentiation from human pluripotent stem cells requires a TGFβ-driven metabolic switch characterized by reduced lactate production and enhanced TCA cycle activity and oxidative phosphorylation, mediated by PDHB. Disruption of glucose utilization or pyruvate entry into the TCA cycle markedly impairs endoderm differentiation, whereas inhibition of lactate production enhances differentiation efficiency. Mechanistically, blockade of glucose metabolism or the TCA cycle reduces intracellular ATP levels, compromising the activity of BAF complex, an ATP-dependent chromatin remodeling complex centered on BRG1. This complex promotes chromatin accessibility and activates endodermal gene programs during differentiation. Together, these findings highlight metabolic reprogramming as a key regulator of human endoderm fate through ATP-dependent control of chromatin remodeling.
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