Cited by 530Muscle Physiology and DisordersNeurogenetic and Muscular Disorders ResearchInflammatory Myopathies and Dermatomyositis

A nitric oxide synthase transgene ameliorates muscular dystrophy in mdx mice

Open access
Wehling, Michelle, Spencer, Melissa J., Tidball, James G.·2001·The Journal of Cell Biology

Abstract

Dystrophin-deficient muscles experience large reductions in expression of nitric oxide synthase (NOS), which suggests that NO deficiency may influence the dystrophic pathology. Because NO can function as an antiinflammatory and cytoprotective molecule, we propose that the loss of NOS from dystrophic muscle exacerbates muscle inflammation and fiber damage by inflammatory cells. Analysis of transgenic mdx mice that were null mutants for dystrophin, but expressed normal levels of NO in muscle, showed that the normalization of NO production caused large reductions in macrophage concentrations in the mdx muscle. Expression of the NOS transgene in mdx muscle also prevented the majority of muscle membrane injury that is detectable in vivo, and resulted in large decreases in serum creatine kinase concentrations. Furthermore, our data show that mdx muscle macrophages are cytolytic at concentrations that occur in dystrophic, NOS-deficient muscle, but are not cytolytic at concentrations that occur in dystrophic mice that express the NOS transgene in muscle. Finally, our data show that antibody depletions of macrophages from mdx mice cause significant reductions in muscle membrane injury. Together, these findings indicate that macrophages promote injury of dystrophin-deficient muscle, and the loss of normal levels of NO production by dystrophic muscle exacerbates inflammation and membrane injury in muscular dystrophy.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1083/jcb.200105110

Cites

43 of 43 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Wehling, M., Spencer, M. J., & Tidball, J. G.
Affiliations
University of California, Los Angeles (US)
Corresponding author
Wehling, Michelle
Venue
The Journal of Cell Biology
Published
2001-10-01
Volume
155
Issue
1
Pages
123-132
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2126792732
Cited by
530
References
43
Citations by year
2026: 10 · 2025: 9 · 2024: 12 · 2023: 8 · 2022: 13 · 2021: 12 · 2020: 20 · 2019: 14 · 2018: 21 · 2017: 19 · 2016: 23 · 2015: 25 · 2014: 32 · 2013: 22 · 2012: 33
FWCI
8.16
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • The Journal of Cell Biology (publishedVersion)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by-nc-sa)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Genetics › Neurogenetic and Muscular Disorders Research
  • Health Sciences › Medicine › Epidemiology › Inflammatory Myopathies and Dermatomyositis
Keywords
nitric oxide synthase, muscular dystrophy, mdx mice, dystrophin deficiency, macrophages, muscle inflammation, creatine kinase, macrophage cytotoxicity, macrophage depletion, transgenic rescue, anti-inflammatory therapy
MeSH terms
Animals, Creatine Kinase, Disease Models, Animal, Humans, Macrophages, Mice, Transgenic, Dystrophin, Mice, Inbred mdx, Muscle, Skeletal, Muscle Fibers, Skeletal, Nitric Oxide Synthase, Transgenes, Muscular Dystrophy, Duchenne, Mice, Nitric Oxide Synthase Type I

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review