Evidence map›Paper›PMID 35325353›Full record

ArticleGeroScience2022

Senolytic treatment rescues blunted muscle hypertrophy in old mice.

Cory M Dungan, Vandre C Figueiredo, Yuan Wen, Georgia L VonLehmden, Christopher J Zdunek, Nicholas T Thomas, C Brooks Mobley, Kevin A Murach, Camille R Brightwell, Douglas E Long and 4 more

Open access · hybridAbstract read
In one paragraph

Article in GeroScience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
4.9field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

41 citing papers in PubMed, 57 citations in OpenAlex.

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  16. New Horizons in Myotonic Dystrophy Type 1: Cellular Senescence as a Therapeutic Target.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025
    Review
  17. The impact of cellular senescence on aging skeletal muscle.Frontiers in cell and developmental biology · 2025
    Review
  18. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 2 institutions in 1 country.

Cory M DunganCenter for Muscle Biology, University of Kentucky, Lexington, KY, USA. cdu237@uky.edu.
Vandre C FigueiredoCenter for Muscle Biology, University of Kentucky, Lexington, KY, USA.
Yuan WenCenter for Muscle Biology, University of Kentucky, Lexington, KY, USA.
Georgia L VonLehmdenCenter for Muscle Biology, University of Kentucky, Lexington, KY, USA.
Christopher J ZdunekCenter for Muscle Biology, University of Kentucky, Lexington, KY, USA.
Nicholas T ThomasCenter for Muscle Biology, University of Kentucky, Lexington, KY, USA.
C Brooks MobleyCenter for Muscle Biology, University of Kentucky, Lexington, KY, USA.
Kevin A MurachCenter for Muscle Biology, University of Kentucky, Lexington, KY, USA.
Camille R BrightwellCenter for Muscle Biology, University of Kentucky, Lexington, KY, USA.
Douglas E LongCenter for Muscle Biology, University of Kentucky, Lexington, KY, USA.
Christopher S FryCenter for Muscle Biology, University of Kentucky, Lexington, KY, USA.
Philip A KernDepartment of Internal Medicine, Division of Endocrinology, University of Kentucky, Lexington, KY, USA.
John J McCarthyCenter for Muscle Biology, University of Kentucky, Lexington, KY, USA.
Charlotte A PetersonCenter for Muscle Biology, University of Kentucky, Lexington, KY, USA.
University of Kentucky · USAuburn University · US

Funding

Kentucky Center for Clinical and Translational ScienceUL1TR001998 · NCATS · UNIVERSITY OF KENTUCKY · PI HARTMANN, KATHERINE E, KERN, PHILIP A · 2016 to 2025
$34.2M
The role of satellite cells in adult skeletal muscle growth and maintenanceR01AR060701 · NIAMS · UNIVERSITY OF KENTUCKY · PI MCCARTHY, JOHN JOSEPH, PETERSON, CHARLOTTE A. · 2010 to 2019
$3.3M
Exercise-induced skeletal muscle exosomes promote adipocyte lipolysisR01DK119619 · NIDDK · UNIVERSITY OF KENTUCKY · PI MCCARTHY, JOHN JOSEPH, PETERSON, CHARLOTTE A. · 2018 to 2022
$2.3M
The effects of exercise on satellite cell dynamics during agingR01AG049806 · NIA · UNIVERSITY OF KENTUCKY · PI MCCARTHY, JOHN JOSEPH, PETERSON, CHARLOTTE A. · 2016 to 2020
$1.8M
NCATS NIH HHS UL1 TR001998NIAMS NIH HHS R01 AR060701NIA NIH HHS R01 AG049806NIDDK NIH HHS R01 DK119619
6 · The paper itself

Abstract

With aging, skeletal muscle plasticity is attenuated in response to exercise. Here, we report that senescent cells, identified using senescence-associated β-galactosidase (SA β-Gal) activity and p21 immunohistochemistry, are very infrequent in resting muscle, but emerge approximately 2 weeks after a bout of resistance exercise in humans. We hypothesized that these cells contribute to blunted hypertrophic potential in old age. Using synergist ablation-induced mechanical overload (MOV) of the plantaris muscle to model resistance training in adult (5-6-month) and old (23-24-month) male C57BL/6 J mice, we found increased senescent cells in both age groups during hypertrophy. Consistent with the human data, there were negligible senescent cells in plantaris muscle from adult and old sham controls, but old mice had significantly more senescent cells 7 and 14 days following MOV relative to young. Old mice had blunted whole-muscle hypertrophy when compared to adult mice, along with smaller muscle fibers, specifically glycolytic type 2x + 2b fibers. To ablate senescent cells using a hit-and-run approach, old mice were treated with vehicle or a senolytic cocktail consisting of 5 mg/kg dasatinib and 50 mg/kg quercetin (D + Q) on days 7 and 10 during 14 days of MOV; control mice underwent sham surgery with or without senolytic treatment. Old mice given D + Q had larger muscles and muscle fibers after 14 days of MOV, fewer senescent cells when compared to vehicle-treated old mice, and changes in the expression of genes (i.e., Igf1, Ddit4, Mmp14) that are associated with hypertrophic growth. Our data collectively show that senescent cells emerge in human and mouse skeletal muscle following a hypertrophic stimulus and that D + Q improves muscle growth in old mice.

Indexed as

Muscle, SkeletalSenotherapeuticsAnimalsHumansHypertrophyMaleMiceMice, Inbred C57BLSenotherapeuticsAnabolic resistanceHypertrophySenescenceSenolyticsSkeletal muscle

Identifiers

PMID35325353
PMCPMC9616988
OpenAlexW4220756418

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.