1
|
Schütze K, Schopp M, Fairchild TJ, Needham M. Old muscle, new tricks: a clinician perspective on sarcopenia and where to next. Curr Opin Neurol 2023; 36:441-449. [PMID: 37501556 PMCID: PMC10487352 DOI: 10.1097/wco.0000000000001185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
PURPOSE OF REVIEW This review offers a contemporary clinical approach to the recognition, prevention and management of sarcopenia, and discusses recent clinically relevant advances in the aetiopathogenesis of muscle ageing that may lead to future therapeutic targets. RECENT FINDINGS The key recent directions for sarcopenia are in the diagnosis, understanding molecular mechanisms and management. Regarding the recognition of the condition, it has become increasingly clear that different definitions hamper progress in understanding. Therefore, the Global Leadership in Sarcopenia has been established in 2022 to develop a universally accepted definition. Moreover, substantial work is occurring to understand the various roles and contribution of inflammation, oxidative stress, mitochondrial dysfunction and metabolic dysregulation on skeletal muscle function and ageing. Finally, the role of resistance-based exercise regimes has been continually emphasised. However, the role of protein supplementation and hormone replacement therapy (HRT) are still under debate, and current clinical trials are underway. SUMMARY With the global ageing of our population, there is increasing emphasis on maintaining good health. Maintenance of skeletal muscle strength and function are key to preventing frailty, morbidity and death.
Collapse
Affiliation(s)
- Katie Schütze
- School of Medicine, The University of Notre Dame Australia, Fremantle
| | - Madeline Schopp
- School of Medicine, The University of Notre Dame Australia, Fremantle
| | - Timothy J. Fairchild
- Centre for Molecular Medicine & Innovative Therapeutics
- School of Allied Health, Murdoch University
| | - Merrilee Needham
- School of Medicine, The University of Notre Dame Australia, Fremantle
- Centre for Molecular Medicine & Innovative Therapeutics
- Perron Institute of Neurological and Translational Sciences, Nedlands
- Department of Neurology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| |
Collapse
|
2
|
Gorza L, Germinario E, Vitadello M, Guerra I, De Majo F, Gasparella F, Caliceti P, Vitiello L, Danieli-Betto D. Curcumin Administration Improves Force of mdx Dystrophic Diaphragm by Acting on Fiber-Type Composition, Myosin Nitrotyrosination and SERCA1 Protein Levels. Antioxidants (Basel) 2023; 12:1181. [PMID: 37371910 DOI: 10.3390/antiox12061181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/25/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023] Open
Abstract
The vegetal polyphenol curcumin displays beneficial effects against skeletal muscle derangement induced by oxidative stress, disuse or aging. Since oxidative stress and inflammation are involved in the progression of muscle dystrophy, the effects of curcumin administration were investigated in the diaphragm of mdx mice injected intraperitoneally or subcutaneously with curcumin for 4-12-24 weeks. Curcumin treatment independently of the way and duration of administration (i) ameliorated myofiber maturation index without affecting myofiber necrosis, inflammation and degree of fibrosis; (ii) counteracted the decrease in type 2X and 2B fiber percentage; (iii) increased about 30% both twitch and tetanic tensions of diaphragm strips; (iv) reduced myosin nitrotyrosination and tropomyosin oxidation; (v) acted on two opposite nNOS regulators by decreasing active AMP-Kinase and increasing SERCA1 protein levels, the latter effect being detectable also in myotube cultures from mdx satellite cells. Interestingly, increased contractility, decreased myosin nitrotyrosination and SERCA1 upregulation were also detectable in the mdx diaphragm after a 4-week administration of the NOS inhibitor 7-Nitroindazole, and were not improved further by a combined treatment. In conclusion, curcumin has beneficial effects on the dystrophic muscle, mechanistically acting for the containment of a deregulated nNOS activity.
Collapse
Affiliation(s)
- Luisa Gorza
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Elena Germinario
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Maurizio Vitadello
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Irene Guerra
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Federica De Majo
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | | | - Paolo Caliceti
- Department of Pharmaceutical Sciences, University of Padova, 35131 Padova, Italy
| | - Libero Vitiello
- Department of Biology, University of Padova, 35131 Padova, Italy
| | | |
Collapse
|
3
|
Mechanisms of skeletal muscle-tendon development and regeneration/healing as potential therapeutic targets. Pharmacol Ther 2023; 243:108357. [PMID: 36764462 DOI: 10.1016/j.pharmthera.2023.108357] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 02/02/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023]
Abstract
Skeletal muscle contraction is essential for the movement of our musculoskeletal system. Tendons and ligaments that connect the skeletal muscles to bones in the correct position at the appropriate time during development are also required for movement to occur. Since the musculoskeletal system is essential for maintaining basic bodily functions as well as enabling interactions with the environment, dysfunctions of these tissues due to disease can significantly reduce quality of life. Unfortunately, as people live longer, skeletal muscle and tendon/ligament diseases are becoming more common. Sarcopenia, a disease in which skeletal muscle function declines, and tendinopathy, which involves chronic tendon dysfunction, are particularly troublesome because there have been no significant advances in their treatment. In this review, we will summarize previous reports on the development and regeneration/healing of skeletal muscle and tendon tissues, including a discussion of the molecular and cellular mechanisms involved that may be used as potential therapeutic targets.
Collapse
|
4
|
Li A, Anbuchelvan M, Fathi A, Abu-Zahra M, Evseenko D, Petrigliano FA, Dar A. Distinct human skeletal muscle-derived CD90 progenitor subsets for myo-fibro-adipogenic disease modeling and treatment in multiplexed conditions. Front Cell Dev Biol 2023; 11:1173794. [PMID: 37143896 PMCID: PMC10151706 DOI: 10.3389/fcell.2023.1173794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 04/03/2023] [Indexed: 05/06/2023] Open
Abstract
Chronic muscle injuries, such as massive rotator cuff tears, are associated with progressive muscle wasting, fibrotic scarring, and intramuscular fat accumulation. While progenitor cell subsets are usually studied in culture conditions that drive either myogenic, fibrogenic, or adipogenic differentiation, it is still unknown how combined myo-fibro-adipogenic signals, which are expected to occur in vivo, modulate progenitor differentiation. We therefore evaluated the differentiation potential of retrospectively generated subsets of primary human muscle mesenchymal progenitors in multiplexed conditions in the presence or absence of 423F drug, a modulator of gp130 signaling. We identified a novel CD90+CD56- non-adipogenic progenitor subset that maintained a lack of adipogenic potential in single and multiplexed myo-fibro-adipogenic culture conditions. CD90-CD56- demarcated fibro-adipogenic progenitors (FAP) and CD56+CD90+ progenitors were typified as myogenic. These human muscle subsets exhibited varying degrees of intrinsically regulated differentiation in single and mixed induction cultures. Modulation of gp130 signaling via 423F drug mediated muscle progenitor differentiation in a dose-, induction-, and cell subset-dependent manner and markedly decreased fibro-adipogenesis of CD90-CD56- FAP. Conversely, 423F promoted myogenesis of CD56+CD90+ myogenic subset, indicated by increased myotube diameter and number of nuclei per myotube. 423F treatment eliminated FAP-derived mature adipocytes from mixed adipocytes-FAP cultures but did not modify the growth of non-differentiated FAP in these cultures. Collectively, these data demonstrate that capability of myogenic, fibrogenic, or adipogenic differentiation is largely dependent on the intrinsic features of cultured subsets, and that the degree of lineage differentiation varies when signals are multiplexed. Moreover, our tests performed in primary human muscle cultures reveal and confirm the potential triple-therapeutic effects of 423F drug which simultaneously attenuates degenerative fibrosis, fat accumulation and promotes myo-regeneration.
Collapse
Affiliation(s)
- Angela Li
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Madhavan Anbuchelvan
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Amir Fathi
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Maya Abu-Zahra
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Denis Evseenko
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- Department of Stem Cell Research and Regenerative Medicine, University of Southern California, Los Angeles, CA, United States
| | - Frank A. Petrigliano
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Ayelet Dar
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- *Correspondence: Ayelet Dar,
| |
Collapse
|
5
|
Zha W, Sun Y, Gong W, Li L, Kim W, Li H. Ginseng and ginsenosides: Therapeutic potential for sarcopenia. Biomed Pharmacother 2022; 156:113876. [DOI: 10.1016/j.biopha.2022.113876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/05/2022] [Accepted: 10/13/2022] [Indexed: 11/02/2022] Open
|