The DOI matches its Crossref record; 60 of the 60 references it cites were found in a registry or an index.
Shifts in macrophage phenotypes and macrophage competition for arginine metabolism affect the severity of muscle pathology in muscular dystrophy
Open accessAbstract
Duchenne muscular dystrophy (DMD) is the most common, lethal, muscle-wasting disease of childhood. Previous investigations have shown that muscle macrophages may play an important role in promoting the pathology in the mdx mouse model of DMD. In the present study, we investigate the mechanism through which macrophages promote mdx dystrophy and assess whether the phenotype of the macrophages changes between the stage of peak muscle necrosis (4 weeks of age) and muscle regeneration (12 weeks). We find that 4-week-old mdx muscles contain a population of pro-inflammatory, classically activated M1 macrophages that lyse muscle in vitro by NO-mediated mechanisms. Genetic ablation of the iNOS gene in mdx mice also significantly reduces muscle membrane lysis in 4-week-old mdx mice in vivo. However, 4-week mdx muscles also contain a population of alternatively activated, M2a macrophages that express arginase. In vitro assays show that M2a macrophages reduce lysis of muscle cells by M1 macrophages through the competition of arginase in M2a cells with iNOS in M1 cells for their common, enzymatic substrate, arginine. During the transition from the acute peak of mdx pathology to the regenerative stage, expression of IL-4 and IL-10 increases, either of which can deactivate the M1 phenotype and promote activation of a CD163+, M2c phenotype that can increase tissue repair. Our findings further show that IL-10 stimulation of macrophages activates their ability to promote satellite cell proliferation. Deactivation of the M1 phenotype is also associated with a reduced expression of iNOS, IL-6, MCP-1 and IP-10. Thus, these results show that distinct subpopulations of macrophages can promote muscle injury or repair in muscular dystrophy, and that therapeutic interventions that affect the balance between M1 and M2 macrophage populations may influence the course of muscular dystrophy.
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“Studies have also suggested that macrophage polarization may play an important role in the process of muscle wasting which occurs in models of muscular dystrophy [124,126,127].”
From Macrophage polarization: an opportunity for improved outcomes in biomaterials and regenerative medicine (2012) · cites this paper as [126]
In the citing paper
“Additional studies have suggested that transition from specific M2a to M2c sub-populations may also play an important role in directing late stage differentiation and functional recovery [126].”
From Macrophage polarization: an opportunity for improved outcomes in biomaterials and regenerative medicine (2012) · cites this paper as [126]
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Citations
Cites
The chemokine system in diverse forms of macrophage activation and polarization
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Alternative activation of macrophages
Gordon, S. (2003) · Nature Reviews Immunology · doi:10.1038/nri978 · Cited by 6,189
Dystrophin: the protein product of the Duchenne muscular dystrophy locus
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Arginine metabolism: nitric oxide and beyond
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The many faces of macrophage activation
Mosser, D. M. (2003) · Journal of Leukocyte Biology · doi:10.1189/jlb.0602325 · Cited by 1,902
Dystrophin protects the sarcolemma from stresses developed during muscle contraction
Petrof, B. J., Shrager, J. B., Stedman, H. H., Kelly, A. M., & Sweeney, H. L. (1993) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.90.8.3710 · Cited by 1,526
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Cited by
Sorted by citations
Microglial M1/M2 polarization and metabolic states
Orihuela, R., McPherson, C. A., & Harry, G. J. (2016) · British Journal of Pharmacology · doi:10.1111/bph.13139 · Cited by 2,070
Repertoire of microglial and macrophage responses after spinal cord injury
David, S., & Kroner, A. (2011) · Nature Reviews Neuroscience · doi:10.1038/nrn3053 · Cited by 1,297
Regulatory interactions between muscle and the immune system during muscle regeneration
Tidball, J. G., & Villalta, S. A. (2010) · American Journal of Physiology-Regulatory, Integrative and Comparative Physiology · doi:10.1152/ajpregu.00735.2009 · Cited by 1,105
Self-citationBrown, B. N., Ratner, B. D., Goodman, S. B., Amar, S., & Badylak, S. F. (2012) · Biomaterials · doi:10.1016/j.biomaterials.2012.02.034 · Cited by 926
“Studies have also suggested that macrophage polarization may play an important role in the process of muscle wasting which occurs in models of muscular dystrophy [124,126,127].”
BackgroundAberrant repair and fibrosis development in skeletal muscle
Mann, C. J., Perdiguero, E., Kharraz, Y., Aguilar, S., Pessina, P., Serrano, A. L., & Muñoz-Cánoves, P. (2011) · Skeletal Muscle · doi:10.1186/2044-5040-1-21 · Cited by 853
“Indeed, similar shifts in macrophage polarization and macrophage competition for arginine metabolism were seen to influence the severity of the muscle pathology in mdx dystrophic mice [28].”
Background
Metadata
- Authors
- Villalta, S. A., Nguyen, H. X., Deng, B., Gotoh, T., & Tidball, J. G.
- Affiliations
- University of California, Los Angeles (US)
- Kumamoto University (JP)
- Corresponding author
- Tidball, J. G.
- Venue
- Human Molecular Genetics
- Publisher
- Oxford University Press (OUP)
- Published
- 2008-11-07
- Volume
- 18
- Issue
- 3
- Pages
- 482-496
- ISSN
- 0964-6906 (ISSN-L)
- 1460-2083
- PMC
- PMC2638796
- OpenAlex
- W2144067550
- Cited by
- 512
- References
- 60
- Citations by year
- 2026: 11 · 2025: 25 · 2024: 18 · 2023: 28 · 2022: 41 · 2021: 32 · 2020: 32 · 2019: 33 · 2018: 39 · 2017: 37 · 2016: 25 · 2015: 39 · 2014: 40 · 2013: 32 · 2012: 27
- FWCI
- 7.14
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Human Molecular Genetics (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- HighWire Press Open Archive (submittedVersion)
- Funders
- Muscular Dystrophy Association
- National Institutes of Health (5r01ar040343-12, AR40343)
- National Institute of Arthritis and Musculoskeletal and Skin Diseases (R01AR047855, R01 AR47721, R01 AR 40343, R01AR047721, F31AR054724)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
- Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
- Health Sciences › Medicine › Genetics (clinical) › Neurogenetic and Muscular Disorders Research
- Keywords
- Duchenne muscular dystrophy, mdx mice, macrophage polarization, M1 macrophages, M2 macrophages, arginine metabolism, arginase, inducible nitric oxide synthase, nitric oxide, muscle necrosis, muscle regeneration, IL-10, IL-4, CD163, satellite cell proliferation, tissue repair
- MeSH terms
- Animals, Arginine, Cells, Cultured, Humans, Macrophage Activation, Macrophages, Mice, Inbred C57BL, Mice, Transgenic, Muscular Dystrophy, Animal, Nitric Oxide, Phenotype, Severity of Illness Index, Cytokines, Muscle, Skeletal, Muscular Dystrophy, Duchenne, Cell Proliferation, Mice, Nitric Oxide Synthase Type II
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