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Other Nutrition Commons

Open Access. Powered by Scholars. Published by Universities.®

Human and Clinical Nutrition

2021

Adipose tissue; extracellular vesicles; lipolysis; microRNAs; skeletal muscle

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Full-Text Articles in Other Nutrition

Mechanical Overload-Induced Muscle-Derived Extracellular Vesicles Promote Adipose Tissue Lipolysis, Ivan J. Vechetti Jr, Bailey D. Peck, Yuan Wen, R Grace Walton, Taylor R. Valentino, Alexander P. Alimov, Cory M. Dungan, Douglas W. Van Pelt, Ferdinand Von Walden, Bjorn Alkner, Charlotte A. Peterson, John J. Mccarthy Dec 2021

Mechanical Overload-Induced Muscle-Derived Extracellular Vesicles Promote Adipose Tissue Lipolysis, Ivan J. Vechetti Jr, Bailey D. Peck, Yuan Wen, R Grace Walton, Taylor R. Valentino, Alexander P. Alimov, Cory M. Dungan, Douglas W. Van Pelt, Ferdinand Von Walden, Bjorn Alkner, Charlotte A. Peterson, John J. Mccarthy

Department of Nutrition and Health Sciences: Faculty Publications

How regular physical activity is able to improve health remains poorly understood. The release of factors from skeletal muscle following exercise has been proposed as a possible mechanism mediating such systemic benefits. We describe a mechanism wherein skeletal muscle, in response to a hypertrophic stimulus induced by mechanical overload (MOV), released extracellular vesicles (EVs) containing muscle-specific miR-1 that were preferentially taken up by epidydimal white adipose tissue (eWAT). In eWAT, miR-1 promoted adrenergic signaling and lipolysis by targeting Tfap2α, a known repressor of Adrβ3 expression. Inhibiting EV release prevented the MOV-induced increase in eWAT miR-1 abundance and expression of …