CELLULAR AND MOLECULAR MECHANISMS OF MUSCLE REGENERATION

BACKGROUND: Muscle injuries are a common manifestation of exercise and non-mechanical factors such as drugs, genetic defects, and systemic diseases. Despite their clinical importance, the cellular and molecular mechanisms of muscle injury and repair are poorly understood, which hamper development of...

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Main Author: Rizwan Qaisar
Format: Article
Language:English
Published: Khyber Medical University 2021-09-01
Series:Khyber Medical University Journal
Subjects:
Online Access:https://www.kmuj.kmu.edu.pk/article/view/20319
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author Rizwan Qaisar
author_facet Rizwan Qaisar
author_sort Rizwan Qaisar
collection DOAJ
description BACKGROUND: Muscle injuries are a common manifestation of exercise and non-mechanical factors such as drugs, genetic defects, and systemic diseases. Despite their clinical importance, the cellular and molecular mechanisms of muscle injury and repair are poorly understood, which hamper development of effective clinical interventions. OBJECTIVE: This review is an attempt to recognize basic principles of skeletal muscle regeneration process. METHODS: A thorough systematic review of articles on muscle injury and repair processes was conducted using three reliable search engines for biomedical literature as ScienceDirect, Scopus and PubMed. REVIEW: Following injury, rapid activation and differentiation of satellite cells is major cellular repair process. At the molecular levels, activation of dysferlin and MG53 proteins help in building the ‘’repair cap’’ at injury site to initiate repair process. This event is followed by secretion of muscle myokines and subsequent infiltration of macrophages into muscle fibers, which remove cellular debris and activate other repair proteins and satellite cells. This review elaborates cellular and molecular mechanisms regulating these events following muscle injury. Effective therapeutic interventions to counter muscle injury-related atrophy remain elusive. Conclusion: Altogether, this review proposes cellular and molecular targets to accelerate muscle regeneration process following mechanical and non-mechanical injuries. Further investigations are required to elucidate the pathways dictating muscle regeneration process following injury.
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spelling doaj.art-39e07967ef434ef3b47c772bdf9015fe2023-06-09T19:18:39ZengKhyber Medical UniversityKhyber Medical University Journal2305-26432305-26512021-09-01133173810.35845/kmuj.2021.203191334CELLULAR AND MOLECULAR MECHANISMS OF MUSCLE REGENERATIONRizwan Qaisar0https://orcid.org/0000-0001-8485-7172Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab EmiratesBACKGROUND: Muscle injuries are a common manifestation of exercise and non-mechanical factors such as drugs, genetic defects, and systemic diseases. Despite their clinical importance, the cellular and molecular mechanisms of muscle injury and repair are poorly understood, which hamper development of effective clinical interventions. OBJECTIVE: This review is an attempt to recognize basic principles of skeletal muscle regeneration process. METHODS: A thorough systematic review of articles on muscle injury and repair processes was conducted using three reliable search engines for biomedical literature as ScienceDirect, Scopus and PubMed. REVIEW: Following injury, rapid activation and differentiation of satellite cells is major cellular repair process. At the molecular levels, activation of dysferlin and MG53 proteins help in building the ‘’repair cap’’ at injury site to initiate repair process. This event is followed by secretion of muscle myokines and subsequent infiltration of macrophages into muscle fibers, which remove cellular debris and activate other repair proteins and satellite cells. This review elaborates cellular and molecular mechanisms regulating these events following muscle injury. Effective therapeutic interventions to counter muscle injury-related atrophy remain elusive. Conclusion: Altogether, this review proposes cellular and molecular targets to accelerate muscle regeneration process following mechanical and non-mechanical injuries. Further investigations are required to elucidate the pathways dictating muscle regeneration process following injury.https://www.kmuj.kmu.edu.pk/article/view/20319skeletal musclesatellite cellsregenerationmuscle injurydysferlintrim proteinsmg53myokinesinflammationmacrophagesserum amyloid a
spellingShingle Rizwan Qaisar
CELLULAR AND MOLECULAR MECHANISMS OF MUSCLE REGENERATION
Khyber Medical University Journal
skeletal muscle
satellite cells
regeneration
muscle injury
dysferlin
trim proteins
mg53
myokines
inflammation
macrophages
serum amyloid a
title CELLULAR AND MOLECULAR MECHANISMS OF MUSCLE REGENERATION
title_full CELLULAR AND MOLECULAR MECHANISMS OF MUSCLE REGENERATION
title_fullStr CELLULAR AND MOLECULAR MECHANISMS OF MUSCLE REGENERATION
title_full_unstemmed CELLULAR AND MOLECULAR MECHANISMS OF MUSCLE REGENERATION
title_short CELLULAR AND MOLECULAR MECHANISMS OF MUSCLE REGENERATION
title_sort cellular and molecular mechanisms of muscle regeneration
topic skeletal muscle
satellite cells
regeneration
muscle injury
dysferlin
trim proteins
mg53
myokines
inflammation
macrophages
serum amyloid a
url https://www.kmuj.kmu.edu.pk/article/view/20319
work_keys_str_mv AT rizwanqaisar cellularandmolecularmechanismsofmuscleregeneration