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- W2915676654 abstract "Depleting creatine levels in thermogenic adipocytes by inhibiting creatine biosynthesis reduces thermogenesis and causes obesity. However, whether creatine import from the circulation affects adipocyte thermogenesis is unknown. Here we show that deletion of the cell-surface creatine transporter (CrT) selectively in fat (AdCrTKO) substantially reduces adipocyte creatine and phosphocreatine levels, and reduces whole-body energy expenditure in mice. AdCrTKO mice are cold intolerant and become more obese than wild-type animals when fed a high-fat diet. Loss of adipocyte creatine transport blunts diet- and β3-adrenergic-induced thermogenesis, whereas creatine supplementation during high-fat feeding increases whole-body energy expenditure in response to β3-adrenergic agonism. In humans, CRT expression in purified subcutaneous adipocytes correlates with lower body mass index and increased insulin sensitivity. Our data indicate that adipocyte creatine abundance depends on creatine sequestration from the circulation. Given that it affects whole-body energy expenditure, enhancing creatine uptake into adipocytes may offer an opportunity to combat obesity and obesity-associated metabolic dysfunction. Creatine can be used for thermogenesis in adipocytes. Here Kazak et al. show that creatine uptake is required to sustain this thermogenic pathway. Knockdown of the creatine transporter, CrT, in adipocytes decreases thermogenesis and energy expenditure, whereas creatine supplementation increases energy expenditure in mice fed a high-fat diet." @default.
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- W2915676654 date "2019-02-25" @default.
- W2915676654 modified "2023-10-15" @default.
- W2915676654 title "Ablation of adipocyte creatine transport impairs thermogenesis and causes diet-induced obesity" @default.
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- W2915676654 doi "https://doi.org/10.1038/s42255-019-0035-x" @default.
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