PGC-1 α -mediated changes in phospholipid profiles of exercise-trained skeletal muscle

Nanami Senoo, Noriyuki Miyoshi, Naoko Goto-Inoue, Kimiko Minami, Ryoji Yoshimura, Akihito Morita, Naoki Sawada, Junichiro Matsuda, Yoshihiro Ogawa, Mitsutoshi Setou, Yasutomi Kamei, Shinji Miura

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Exercise training influences phospholipid fatty acid composition in skeletal muscle and these changes are associated with physiological phenotypes; however, the molecular mechanism of this influence on compositional changes is poorly understood. Peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α ), a nuclear receptor coactivator, promotes mitochondrial biogenesis, the fiber-type switch to oxidative fibers, and angiogenesis in skeletal muscle. Because exercise training induces these adaptations, together with increased PGC-1α, PGC-1α may contribute to the exercise-mediated change in phospholipid fatty acid composition. To determine the role of PGC-1α, we performed lipidomic analyses of skeletal muscle from genetically modified mice that overexpress PGC-1α in skeletal muscle or that carry KO alleles of PGC-1α . We found that PGC-1α affected lipid profiles in skeletal muscle and increased several phospholipid species in glycolytic muscle, namely phosphatidylcholine (PC) (18:0/22:6) and phosphatidylethanolamine (PE) (18:0/22:6). We also found that exercise training increased PC (18:0/22:6) and PE (18:0/22:6) in glycolytic muscle and that PGC-1α was required for these alterations. Because phospholipid fatty acid composition influences cell permeability and receptor stability at the cell membrane, these phospholipids may contribute to exercise training-mediated functional changes in the skeletal muscle.

元の言語英語
ページ(範囲)2286-2296
ページ数11
ジャーナルJournal of Lipid Research
56
発行部数12
DOI
出版物ステータス出版済み - 12 1 2015

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Endocrinology
  • Cell Biology

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    Senoo, N., Miyoshi, N., Goto-Inoue, N., Minami, K., Yoshimura, R., Morita, A., Sawada, N., Matsuda, J., Ogawa, Y., Setou, M., Kamei, Y., & Miura, S. (2015). PGC-1 α -mediated changes in phospholipid profiles of exercise-trained skeletal muscle. Journal of Lipid Research, 56(12), 2286-2296. https://doi.org/10.1194/jlr.M060533