Cited by 41Genetics, Aging, and Longevity in Model OrganismsMitochondrial Function and PathologyMuscle Physiology and Disorders

Voluntary exercise normalizes the proteomic landscape in muscle and brain and improves the phenotype of progeroid mice

Open access
Ross, Jaime M., Coppotelli, Giuseppe, Branca, Rui M., Kim, Kyung M., Lehtiö, Janne, Sinclair, David A., Olson, Lars·2019·Aging Cell

Abstract

The accumulation of mitochondrial DNA (mtDNA) mutations is a suspected driver of aging and age‐related diseases, but forestalling these changes has been a major challenge. One of the best‐studied models is the prematurely aging mtDNA mutator mouse, which carries a homozygous knock‐in of a proofreading deficient version of the catalytic subunit of mtDNA polymerase‐γ (PolgA). We investigated how voluntary exercise affects the progression of aging phenotypes in this mouse, focusing on mitochondrial and protein homeostasis in both brain and peripheral tissues. Voluntary exercise significantly ameliorated several aspects of the premature aging phenotype, including decreased locomotor activity, alopecia, and kyphosis, but did not have major effects on the decreased lifespan of mtDNA mutator mice. Exercise also decreased the mtDNA mutation load. In‐depth tissue proteomics revealed that exercise normalized the levels of about half the proteins, with the majority involved in mitochondrial function and nuclear–mitochondrial crosstalk. There was also a specific increase in the nuclear‐encoded proteins needed for the tricarboxylic acid cycle and complex II, but not in mitochondrial‐encoded oxidative phosphorylation proteins, as well as normalization of enzymes involved in coenzyme Q biosynthesis. Furthermore, we found tissue‐specific alterations, with brain coping better as compared to muscle and with motor cortex being better protected than striatum, in response to mitochondrial dysfunction. We conclude that voluntary exercise counteracts aging in mtDNA mutator mice by counteracting protein dysregulation in muscle and brain, decreasing the mtDNA mutation burden in muscle, and delaying overt aging phenotypes.

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 · 10.1111/acel.13029

Cites

39 of 39 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?

  • Daily voluntary exercise ameliorates progeroid mouse phenotypes and deregulated proteomic profiles in muscle and brain in mtDNA mutator mice.

    “Daily voluntary exercise also ameliorates progeroid mouse phenotypes, such as locomotor activity, alopecia and kyphosis, and the deregulated proteomic profiles in muscle and brain in mtDNA mutator mice216.”
  • Thirty weeks of voluntary wheel running in mtDNA mutator mice from 10 wk of age reduced mtDNA mutations and features of accelerated aging in skeletal muscle, heart, and brain.

    “Impressively, 30 wk of voluntary wheel running in mtDNA mutator mice (mice with defective mtDNA polymerase, PolgA) from 10 wk of age reduced mtDNA mutations and features of accelerated aging in skeletal muscle, heart, and brain (24).”

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

2 retracted

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ross, J. M., Coppotelli, G., Branca, R. M., Kim, K. M., Lehtiö, J., Sinclair, D. A., & Olson, L.
Affiliations
  • Harvard University (US)
  • Science for Life Laboratory (SE)
  • Karolinska Institutet (SE)
Corresponding author
  • Ross, Jaime M.
  • Coppotelli, Giuseppe
Venue
Aging Cell
Publisher
Wiley
Published
2019-09-06
Volume
18
Issue
6
Pages
e13029-e13029
ISSN
  • 1474-9718 (ISSN-L)
  • 1474-9726
OpenAlex
W2972213850
Cited by
41
References
39
Citations by year
2026: 5 · 2025: 7 · 2024: 7 · 2023: 5 · 2022: 3 · 2021: 6 · 2020: 6 · 2019: 1
FWCI
1.46
Type
journal article
Language
en
Open access
Locations
  • Aging Cell (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Institute on Aging (K99AG055683)
  • Radiumhemmets Forskningsfonder
  • Stiftelsen för Strategisk Forskning
  • Barncancerfonden
  • Swedish Brain Power
  • Hjärnfonden
  • Konung Gustaf V:s och Drottning Victorias Frimurarestiftelse
  • Loo och Hans Ostermans Stiftelse för Medicinsk Forskning
  • FP7 Ideas: European Research Council (322744)
  • Svenska Sällskapet för Medicinsk Forskning
  • Karolinska Institutet
  • Vetenskapsrådet (537‐2014‐6856, 2015‐04622, K2012‐62X‐03185‐42‐4)
  • Cancerfonden
  • Lundbeckfonden
  • Glenn Foundation for Medical Research
  • National Institutes of Health (R37AG028730, R01DK100263)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
Keywords
voluntary exercise, premature aging, mitochondrial DNA mutations, mitochondrial dysfunction, proteostasis, tissue proteomics, nuclear-mitochondrial crosstalk, TCA cycle, coenzyme Q biosynthesis, motor cortex, striatum, brain aging, muscle aging, aging phenotypes
MeSH terms
Animals, Brain, DNA, Mitochondrial, Female, Male, Mice, Mutant Strains, Mutation, Phenotype, Physical Conditioning, Animal, Muscle, Skeletal, Proteomics, Mice

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