Abstract
The decline in functional performance and restriction of adaptability represents the hallmark of skeletal muscle pathologies. The characteristic loss in muscle mass, coupled with a decrease in strength and force output, has been associated with a selective activation of apoptotic pathways and a general reduction in survival mechanisms. Aging and genetic diseases, such as muscular dystrophies, amyotrophic lateral sclerosis, cancer and AIDS, are characterized by alterations in metabolic and physiological parameters, progressive weakness in specific muscle groups, modulation in muscle-specific transcriptional mechanisms and persistent protein degradation. The inability to regenerate and repair the injured muscle is another serious complication in muscle pathologies. Tissue remodeling is therefore an important physiological process, which allows skeletal muscle to respond to environmental demands and to undergo adaptive changes in cytoarchitecture and protein composition, in response to a variety of stimuli. Alterations in extracellular agonists, receptors, protein kinases, intermediate molecules, transcription factors and tissue-specific gene expression compromise the functionality of skeletal muscle tissue, leading to muscle degeneration. Although considerable information has accumulated regarding the physiopathology of muscle diseases, the associated molecular mechanisms are still poorly understood. In this review, we will discuss the molecular basis of muscle atrophy, wasting and regeneration and the current gene and cell therapeutic approaches to attenuate atrophy and frailty associated with muscle diseases.
Keywords: myogenesis, muscle diseases, muscle wasting, proteolytic systems, muscle regeneration, therapeutic intervention, survival factors, stem cell
Current Genomics
Title: Attenuating Muscle Wasting: Cell and Gene Therapy Approaches
Volume: 4 Issue: 7
Author(s): A. Musaro and N. Rosenthal
Affiliation:
Keywords: myogenesis, muscle diseases, muscle wasting, proteolytic systems, muscle regeneration, therapeutic intervention, survival factors, stem cell
Abstract: The decline in functional performance and restriction of adaptability represents the hallmark of skeletal muscle pathologies. The characteristic loss in muscle mass, coupled with a decrease in strength and force output, has been associated with a selective activation of apoptotic pathways and a general reduction in survival mechanisms. Aging and genetic diseases, such as muscular dystrophies, amyotrophic lateral sclerosis, cancer and AIDS, are characterized by alterations in metabolic and physiological parameters, progressive weakness in specific muscle groups, modulation in muscle-specific transcriptional mechanisms and persistent protein degradation. The inability to regenerate and repair the injured muscle is another serious complication in muscle pathologies. Tissue remodeling is therefore an important physiological process, which allows skeletal muscle to respond to environmental demands and to undergo adaptive changes in cytoarchitecture and protein composition, in response to a variety of stimuli. Alterations in extracellular agonists, receptors, protein kinases, intermediate molecules, transcription factors and tissue-specific gene expression compromise the functionality of skeletal muscle tissue, leading to muscle degeneration. Although considerable information has accumulated regarding the physiopathology of muscle diseases, the associated molecular mechanisms are still poorly understood. In this review, we will discuss the molecular basis of muscle atrophy, wasting and regeneration and the current gene and cell therapeutic approaches to attenuate atrophy and frailty associated with muscle diseases.
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Cite this article as:
Musaro A. and Rosenthal N., Attenuating Muscle Wasting: Cell and Gene Therapy Approaches, Current Genomics 2003; 4 (7) . https://dx.doi.org/10.2174/1389202033490222
DOI https://dx.doi.org/10.2174/1389202033490222 |
Print ISSN 1389-2029 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5488 |
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