Postprandial control of fatty acid transport proteins’ subcellular location is not dependent on insulin

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Abstract

Fatty acid transport proteins rapidly translocate to the plasma membrane in response to various stimuli, including insulin, influencing lipid uptake into muscle. However, our understanding of the mechanisms regulating postprandial fatty acid transporter subcellular location remains limited. We demonstrate that the response of fatty acid transporters to insulin stimulation is extremely brief and not temporally matched in the postprandial state. We further show that high-fat diet-induced accumulation of fatty acid transporters on the plasma membrane can occur in the absence of insulin. Altogether, these data suggest that insulin is not the primary signal regulating fatty acid transporter relocation in vivo.

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Snook, L. A., Wright, D. C., & Holloway, G. P. (2016). Postprandial control of fatty acid transport proteins’ subcellular location is not dependent on insulin. FEBS Letters, 2661–2670. https://doi.org/10.1002/1873-3468.12260

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