mTOR as a Key Regulator in Maintaining Skeletal Muscle Mass

Maintenance of skeletal muscle mass is regulated by the balance between anabolic and catabolic processes. Mammalian target of rapamycin (mTOR) is an evolutionarily conserved serine/threonine kinase, and is known to play vital roles in protein synthesis. Recent findings have continued to refine our u...

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Main Author: Mee-Sup Yoon
Format: Article
Language:English
Published: Frontiers Media S.A. 2017-10-01
Series:Frontiers in Physiology
Subjects:
Online Access:http://journal.frontiersin.org/article/10.3389/fphys.2017.00788/full
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author Mee-Sup Yoon
author_facet Mee-Sup Yoon
author_sort Mee-Sup Yoon
collection DOAJ
description Maintenance of skeletal muscle mass is regulated by the balance between anabolic and catabolic processes. Mammalian target of rapamycin (mTOR) is an evolutionarily conserved serine/threonine kinase, and is known to play vital roles in protein synthesis. Recent findings have continued to refine our understanding of the function of mTOR in maintaining skeletal muscle mass. mTOR controls the anabolic and catabolic signaling of skeletal muscle mass, resulting in the modulation of muscle hypertrophy and muscle wastage. This review will highlight the fundamental role of mTOR in skeletal muscle growth by summarizing the phenotype of skeletal-specific mTOR deficiency. In addition, the evidence that mTOR is a dual regulator of anabolism and catabolism in skeletal muscle mass will be discussed. A full understanding of mTOR signaling in the maintenance of skeletal muscle mass could help to develop mTOR-targeted therapeutics to prevent muscle wasting.
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spelling doaj.art-58333d1b130a4545ae921f8f00db53582022-12-22T02:04:41ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2017-10-01810.3389/fphys.2017.00788294538mTOR as a Key Regulator in Maintaining Skeletal Muscle MassMee-Sup YoonMaintenance of skeletal muscle mass is regulated by the balance between anabolic and catabolic processes. Mammalian target of rapamycin (mTOR) is an evolutionarily conserved serine/threonine kinase, and is known to play vital roles in protein synthesis. Recent findings have continued to refine our understanding of the function of mTOR in maintaining skeletal muscle mass. mTOR controls the anabolic and catabolic signaling of skeletal muscle mass, resulting in the modulation of muscle hypertrophy and muscle wastage. This review will highlight the fundamental role of mTOR in skeletal muscle growth by summarizing the phenotype of skeletal-specific mTOR deficiency. In addition, the evidence that mTOR is a dual regulator of anabolism and catabolism in skeletal muscle mass will be discussed. A full understanding of mTOR signaling in the maintenance of skeletal muscle mass could help to develop mTOR-targeted therapeutics to prevent muscle wasting.http://journal.frontiersin.org/article/10.3389/fphys.2017.00788/fullmTORskeletal musclehypertrophyatrophysarcopenia
spellingShingle Mee-Sup Yoon
mTOR as a Key Regulator in Maintaining Skeletal Muscle Mass
Frontiers in Physiology
mTOR
skeletal muscle
hypertrophy
atrophy
sarcopenia
title mTOR as a Key Regulator in Maintaining Skeletal Muscle Mass
title_full mTOR as a Key Regulator in Maintaining Skeletal Muscle Mass
title_fullStr mTOR as a Key Regulator in Maintaining Skeletal Muscle Mass
title_full_unstemmed mTOR as a Key Regulator in Maintaining Skeletal Muscle Mass
title_short mTOR as a Key Regulator in Maintaining Skeletal Muscle Mass
title_sort mtor as a key regulator in maintaining skeletal muscle mass
topic mTOR
skeletal muscle
hypertrophy
atrophy
sarcopenia
url http://journal.frontiersin.org/article/10.3389/fphys.2017.00788/full
work_keys_str_mv AT meesupyoon mtorasakeyregulatorinmaintainingskeletalmusclemass