线粒体自噬在成肌细胞分化和骨骼肌重塑中的作用。

IF 6.2 2区 生物学 Q1 CELL BIOLOGY Seminars in cell & developmental biology Pub Date : 2023-07-15 DOI:10.1016/j.semcdb.2021.11.026
Fasih Ahmad Rahman, Joe Quadrilatero
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引用次数: 5

摘要

线粒体以线粒体自噬的形式进行周转是维持细胞功能的核心过程。受损线粒体通过线粒体自噬的降解在表现出高能量需求的细胞/组织中尤为重要。骨骼肌就是这样一种组织,它需要在几种条件下精确地翻转线粒体,以优化能量生产并防止生物能量危机。例如,骨骼肌的形成(即肌生成)伴随着低功能线粒体的强大周转,最终形成高功能线粒体。在成熟的骨骼肌中,线粒体自噬相关信号的改变发生在运动、衰老和各种疾病状态期间。尽管如此,关于线粒体自噬在各种骨骼肌疾病中的直接作用的几个问题仍然未知。此外,考虑到骨骼肌在各种细胞和分子特性方面的异质性,以及这些特性在各种条件下的可塑性,线粒体自噬的参与和表征需要在该组织中进行更仔细的考虑。因此,这篇综述将强调骨骼肌中已知的线粒体自噬机制,并讨论它们在肌发生和各种骨骼肌状况中的作用。这篇综述也为骨骼肌线粒体自噬的准确测量和数据解释提供了重要的考虑因素。
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Emerging role of mitophagy in myoblast differentiation and skeletal muscle remodeling

Mitochondrial turnover in the form of mitophagy is emerging as a central process in maintaining cellular function. The degradation of damaged mitochondria through mitophagy is particularly important in cells/tissues that exhibit high energy demands. Skeletal muscle is one such tissue that requires precise turnover of mitochondria in several conditions in order to optimize energy production and prevent bioenergetic crisis. For instance, the formation of skeletal muscle (i.e., myogenesis) is accompanied by robust turnover of low-functioning mitochondria to eventually allow the formation of high-functioning mitochondria. In mature skeletal muscle, alterations in mitophagy-related signaling occur during exercise, aging, and various disease states. Nonetheless, several questions regarding the direct role of mitophagy in various skeletal muscle conditions remain unknown. Furthermore, given the heterogenous nature of skeletal muscle with respect to various cellular and molecular properties, and the plasticity in these properties in various conditions, the involvement and characterization of mitophagy requires more careful consideration in this tissue. Therefore, this review will highlight the known mechanisms of mitophagy in skeletal muscle, and discuss their involvement during myogenesis and various skeletal muscle conditions. This review also provides important considerations for the accurate measurement of mitophagy and interpretation of data in skeletal muscle.

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来源期刊
CiteScore
15.10
自引率
1.40%
发文量
310
审稿时长
9.1 weeks
期刊介绍: Seminars in Cell and Developmental Biology is a review journal dedicated to keeping scientists informed of developments in the field of molecular cell and developmental biology, on a topic by topic basis. Each issue is thematic in approach, devoted to an important topic of interest to cell and developmental biologists, focusing on the latest advances and their specific implications. The aim of each issue is to provide a coordinated, readable, and lively review of a selected area, published rapidly to ensure currency.
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