title: Integration of signals generated by nutrients, hormones, and exercise in skeletal muscle.
abstract: This review focuses on anabolic signaling pathways through which insulin, amino acids, and resistance exercise act to regulate the protein kinase complex referred to as mechanistic target of rapamycin complex (mTORC) 1. Initially, individual pathways through which the 3 anabolic signals act to modulate mTORC1 signaling will be discussed, followed by a summation of evidence showing an additive effect of the regulators. The emphasis will be on mTORC1 signaling in skeletal muscle and its contribution to modulation of rates of protein synthesis. In addition, results from studies using cells in culture will be used to provide a more complete picture of the molecular details of the individual pathways.
authors.affiliation: Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA.
authors.forename: Scot R
authors.initials: SR
authors.lastname: Kimball
mesh_terms: D000596:Amino Acids / Q000494:pharmacology*; D000818:Animals; D005786:Gene Expression Regulation; D006801:Humans; D007328:Insulin / Q000494:pharmacology*; D000076222:Mechanistic Target of Rapamycin Complex 1; D018977:Micronutrients / Q000494:pharmacology*; D046912:Multiprotein Complexes / Q000235:genetics / Q000378:metabolism; D018482:Muscle, Skeletal / Q000187:drug effects* / Q000378:metabolism; D010766:Phosphorylation; D014176:Protein Biosynthesis / Q000502:physiology; D011494:Protein Kinases / Q000235:genetics / Q000378:metabolism; D055070:Resistance Training; D015398:Signal Transduction; D058570:TOR Serine-Threonine Kinases / Q000235:genetics / Q000378:metabolism
chemical_list: D000596:Amino Acids; D007328:Insulin; D018977:Micronutrients; D046912:Multiprotein Complexes; D011494:Protein Kinases; D000076222:Mechanistic Target of Rapamycin Complex 1; D058570:TOR Serine-Threonine Kinases