Making Mice Mighty: recent advances in translational models of load-induced muscle hypertrophy.

Making Mice Mighty: recent advances in translational models of load-induced muscle hypertrophy.
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让小鼠变得强大:负荷引起的肌肉肥大转化模型的最新进展。

DOI:
10.1152/japplphysiol.00319.2020
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发表时间:
2020
期刊:
Journal of applied physiology (Bethesda, Md. : 1985)
影响因子:
--
通讯作者:
Dungan,CoryM
Dungan,CoryM
中科院分区:
--
文献类型:
--
作者:
Murach,KevinA;McCarthy,JohnJ;Peterson,CharlotteA;Dungan,CoryM

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基因操纵小鼠的能力允许在体内获得和丧失功能,使它们成为阐明骨骼肌质量调节机制的理想模型。将遗传模型与机械肌肉负荷相结合,能够识别参与肥大反应的特定因素,以及测试这些因素对适应的要求的能力,从而为性能和治疗干预提供信息。直到最近,用于诱导机械介导的肌肉肥大(即,抵抗力训练类似物)已经受到限制并且被认为是“不可翻译的”。这篇简短的综述概述了最近在负载介导的诱导小鼠肌肉肥大的策略方面的翻译进展,并强调了每种方法的优点和缺点。骨骼肌领域是准备在理解机制的新突破,调节负荷引起的肌肉生长的众多小鼠的工具,最近被描述。
The ability to genetically manipulate mice allows for gain- and loss-of-function in vivo, making them an ideal model for elucidating mechanisms of skeletal muscle mass regulation. Combining genetic models with mechanical muscle loading enables identification of specific factors involved in the hypertrophic response as well as the ability to test the requirement of those factors for adaptation, thereby informing performance and therapeutic interventions. Until recently, approaches for inducing mechanically mediated muscle hypertrophy (i.e., resistance-training analogs) have been limited and considered “nontranslatable” to humans. This mini-review outlines recent translational advances in loading-mediated strategies for inducing muscle hypertrophy in mice, and highlights the advantages and disadvantages of each method. The skeletal muscle field is poised for new breakthroughs in understanding mechanisms regulating load-induced muscle growth given the numerous murine tools that have very recently been described.
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