PMID- 21487027 OWN - NLM STAT- MEDLINE DCOM- 20110810 LR - 20211203 IS - 1548-9221 (Electronic) IS - 1548-9213 (Print) IS - 1548-9221 (Linking) VI - 26 IP - 2 DP - 2011 Apr TI - mTor signaling in skeletal muscle during sepsis and inflammation: where does it all go wrong? PG - 83-96 LID - 10.1152/physiol.00044.2010 [doi] AB - The mammalian target of rapamycin (mTOR) is an evolutionarily conserved protein kinase that exquisitely regulates protein metabolism in skeletal muscle. mTOR integrates input from amino acids, growth factors, and intracellular cues to make or break muscle protein. mTOR accomplishes this task by stimulating the phosphorylation of substrates that control protein translation while simultaneously inhibiting proteasomal and autophagic protein degradation. In a metabolic twist of fate, sepsis induces muscle atrophy in part by the aberrant regulation of mTOR. In this review, we track the steps of normal mTOR signaling in muscle and examine where they go astray in sepsis and inflammation. FAU - Frost, Robert A AU - Frost RA AD - Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA. FAU - Lang, Charles H AU - Lang CH LA - eng GR - R01 GM038032/GM/NIGMS NIH HHS/United States GR - GM-38032/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Review PL - United States TA - Physiology (Bethesda) JT - Physiology (Bethesda, Md.) JID - 101208185 RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM MH - Animals MH - Humans MH - Inflammation/metabolism/pathology MH - Muscle, Skeletal/*metabolism/pathology MH - Myositis/*metabolism/pathology MH - Sepsis/*metabolism/pathology MH - Signal Transduction MH - TOR Serine-Threonine Kinases/*metabolism PMC - PMC3606812 MID - NIHMS449771 EDAT- 2011/04/14 06:00 MHDA- 2011/08/11 06:00 PMCR- 2013/03/24 CRDT- 2011/04/14 06:00 PHST- 2011/04/14 06:00 [entrez] PHST- 2011/04/14 06:00 [pubmed] PHST- 2011/08/11 06:00 [medline] PHST- 2013/03/24 00:00 [pmc-release] AID - 26/2/83 [pii] AID - 10.1152/physiol.00044.2010 [doi] PST - ppublish SO - Physiology (Bethesda). 2011 Apr;26(2):83-96. doi: 10.1152/physiol.00044.2010.