Abstract
The prolongation of skeletal muscle strength in aging and neuromuscular disease has been the objective of numerous studies employing a variety of approaches. To date however, efforts to prevent or attenuate age- or disease-related muscle degeneration have been largely unsuccessful. Cell-based therapies have been stalled by the difficulty in obtaining sufficient numbers of autologous myoblasts and by inefficient incorporation into host muscle. Administration of growth hormone prevents age-related loss of muscle mass, but has failed to increase muscle strength. In this context, where direct therapeutic approaches to redress the primary disease are still suboptimal, it may be more effective to focus on strategies for improving skeletal muscle function. Experimental models of muscle growth and regeneration have implicated Insulin-like Growth Factor-1 (IGF-1) as an important mediator of anabolic pathways in skeletal muscle cells. Two major IGF-1 transcripts are characterized: the locally acting isoform with an autocrine/paracrine action and the circulating isoform with endocrine effects. The physiological differences between the function of local and circulating isoform of IGF-1 are not completely established. However the selective expression of the muscle-specific IGF-1 isoform avoids hypertrophic effects on distal organs such as the heart, and eliminates risk of possible neoplasms induced by inappropriate high expression levels of circulating IGF-1. In this review we discuss the roles of IGF-1 isoforms in myogenesis and the potential therapeutic role of local IGF-1 isoform on muscle aging and diseases.
Keywords: mechano growth factor, post-translational modification, cortical neurons, cartilage homeostasis, myosin light chain (MLC), myofiber
Current Genomics
Title: The Critical Role of Insulin-Like Growth Factor-1 Isoforms in the Physiopathology of Skeletal Muscle
Volume: 7 Issue: 1
Author(s): A. Musaro and N. Rosenthal
Affiliation:
Keywords: mechano growth factor, post-translational modification, cortical neurons, cartilage homeostasis, myosin light chain (MLC), myofiber
Abstract: The prolongation of skeletal muscle strength in aging and neuromuscular disease has been the objective of numerous studies employing a variety of approaches. To date however, efforts to prevent or attenuate age- or disease-related muscle degeneration have been largely unsuccessful. Cell-based therapies have been stalled by the difficulty in obtaining sufficient numbers of autologous myoblasts and by inefficient incorporation into host muscle. Administration of growth hormone prevents age-related loss of muscle mass, but has failed to increase muscle strength. In this context, where direct therapeutic approaches to redress the primary disease are still suboptimal, it may be more effective to focus on strategies for improving skeletal muscle function. Experimental models of muscle growth and regeneration have implicated Insulin-like Growth Factor-1 (IGF-1) as an important mediator of anabolic pathways in skeletal muscle cells. Two major IGF-1 transcripts are characterized: the locally acting isoform with an autocrine/paracrine action and the circulating isoform with endocrine effects. The physiological differences between the function of local and circulating isoform of IGF-1 are not completely established. However the selective expression of the muscle-specific IGF-1 isoform avoids hypertrophic effects on distal organs such as the heart, and eliminates risk of possible neoplasms induced by inappropriate high expression levels of circulating IGF-1. In this review we discuss the roles of IGF-1 isoforms in myogenesis and the potential therapeutic role of local IGF-1 isoform on muscle aging and diseases.
Export Options
About this article
Cite this article as:
Musaro A. and Rosenthal N., The Critical Role of Insulin-Like Growth Factor-1 Isoforms in the Physiopathology of Skeletal Muscle, Current Genomics 2006; 7 (1) . https://dx.doi.org/10.2174/138920206776389784
DOI https://dx.doi.org/10.2174/138920206776389784 |
Print ISSN 1389-2029 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5488 |
Call for Papers in Thematic Issues
Advanced Computational Algorithms and Artificial Intelligence in Clinical Pharmacogenomics
In the era of personalized medicine, understanding the relationship between genetics and drug response is crucial. This issue delves into innovative methodologies, leveraging deep computational analysis and artificial intelligence, to enhance the field of Clinical Pharmacogenomics. The interdisciplinary approach harnesses the power of advanced high-throughput genotyping technologies, sophisticated computational analysis, ...read more
Applications of Single-cell Sequencing Technology in Reproductive Medicine
Single cell sequencing (SCS) technology utilizes individual cells' genetic material to sequence their genome, transcriptome, and epigenetics at the molecular level. It offers insights into cell heterogeneity and enables the study of limited biological materials. Since its recognition as a valuable technique in 2011, single cell sequencing has yielded numerous ...read more
Big Data in Cancer Research
Cancer is a significant threat to human life and health, remaining a highly aggressive killer. It is a leading cause of death worldwide and represents a crucial medical issue for humanity. However, in the past decade, the effectiveness of new synthetic anticancer agents has not matched the current clinical speculation. ...read more
Current Genomics in Cardiovascular Research
Cardiovascular diseases are the main cause of death in the world, in recent years we have had important advances in the interaction between cardiovascular disease and genomics. In this Research Topic, we intend for researchers to present their results with a focus on basic, translational and clinical investigations associated with ...read more
Related Journals
- Author Guidelines
- Graphical Abstracts
- Fabricating and Stating False Information
- Research Misconduct
- Post Publication Discussions and Corrections
- Publishing Ethics and Rectitude
- Increase Visibility of Your Article
- Archiving Policies
- Peer Review Workflow
- Order Your Article Before Print
- Promote Your Article
- Manuscript Transfer Facility
- Editorial Policies
- Allegations from Whistleblowers
- Announcements
Related Articles
-
Selenoproteins and their Role in Oxidative Stress and Inflammation
Current Chemical Biology Nitroso-Redox Balance and Modulation of Basal Myocardial Function: An Update from the Italian Society of Cardiovascular Research (SIRC)
Current Drug Targets Mitochondria Damage in the Pathogenesis of Diabetic Retinopathy and in the Metabolic Memory Associated with its Continued Progression
Current Medicinal Chemistry Proteomics to Identify Novel Biomarkers and Therapeutic Targets in Cardiovascular Disease
Letters in Drug Design & Discovery Vitamins in Heart Failure: Friend or Enemy?
Current Pharmaceutical Design A Systematic Review on Levosimendan in Paediatric Patients
Current Vascular Pharmacology Utility of the Electrocardiogram in Drug Overdose and Poisoning: Theoretical Considerations and Clinical Implications
Current Cardiology Reviews Rac-1 as a New Therapeutic Target in Cerebro- and Cardio-Vascular Diseases
Current Drug Targets Recent Advancements in Diagnosis and Therapy of Liver Cirrhosis
Current Drug Targets Biological Activities of Receptor-interacting Protein 140 in Adipocytes and Metabolic Diseases
Current Diabetes Reviews Cardiac Side Effects of Chemotherapy: State of Art and Strategies for a Correct Management
Current Vascular Pharmacology Inflammatory Mediators and the Failing Heart: A Translational Approach
Current Molecular Medicine Protein Kinase CK2 in Human Diseases
Current Medicinal Chemistry Heart Failure in South America
Current Cardiology Reviews Modular Nanotransporters for Targeted Intracellular Delivery of Drugs: Folate Receptors as Potential Targets
Current Pharmaceutical Design Role of Oxidative Stress in Development of Cardiovascular Complications in Diabetes Mellitus
Current Vascular Pharmacology Inhibitors of Chronically Active Ras: Potential for Treatment of Human Malignancies
Recent Patents on Anti-Cancer Drug Discovery Risk Factors for Development of Heart Failure
Current Cardiology Reviews Targeting Drugs to APJ Receptor: The Prospect of Treatment of Hypertension and Other Cardiovascular Diseases
Current Drug Targets Patent Selections:
Recent Patents on Endocrine, Metabolic & Immune Drug Discovery