Endurance exercise training-responsive miR-19b-3p improves skeletal muscle glucose metabolism

Julie Massart, Rasmus J. O. Sjögren, Brendan Egan, Christian Garde, Magnus Lindgren, Weifeng Gu, Duarte M. S. Ferreira, Mutsumi Katayama, Jorge L. Ruas, Romain Barrès, Donal J. O’Gorman, Juleen R. Zierath and Anna Krook ()
Additional contact information
Julie Massart: Karolinska Institutet
Rasmus J. O. Sjögren: Karolinska Institutet
Brendan Egan: Karolinska Institutet
Christian Garde: University of Copenhagen
Magnus Lindgren: Karolinska Institutet
Weifeng Gu: University of Massachusetts Medical School
Duarte M. S. Ferreira: Karolinska Institutet
Mutsumi Katayama: Karolinska Institutet
Jorge L. Ruas: Karolinska Institutet
Romain Barrès: University of Copenhagen
Donal J. O’Gorman: Dublin City University
Juleen R. Zierath: Karolinska Institutet
Anna Krook: Karolinska Institutet

Nature Communications, 2021, vol. 12, issue 1, 1-13

Abstract: Abstract Skeletal muscle is a highly adaptable tissue and remodels in response to exercise training. Using short RNA sequencing, we determine the miRNA profile of skeletal muscle from healthy male volunteers before and after a 14-day aerobic exercise training regime. Among the exercise training-responsive miRNAs identified, miR-19b-3p was selected for further validation. Overexpression of miR-19b-3p in human skeletal muscle cells increases insulin signaling, glucose uptake, and maximal oxygen consumption, recapitulating the adaptive response to aerobic exercise training. Overexpression of miR-19b-3p in mouse flexor digitorum brevis muscle enhances contraction-induced glucose uptake, indicating that miR-19b-3p exerts control on exercise training-induced adaptations in skeletal muscle. Potential targets of miR-19b-3p that are reduced after aerobic exercise training include KIF13A, MAPK6, RNF11, and VPS37A. Amongst these, RNF11 silencing potentiates glucose uptake in human skeletal muscle cells. Collectively, we identify miR-19b-3p as an aerobic exercise training-induced miRNA that regulates skeletal muscle glucose metabolism.

Date: 2021
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DOI: 10.1038/s41467-021-26095-0

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