Cited by 600Muscle Physiology and DisordersAdipose Tissue and MetabolismNutrition and Health in Aging

RETRACTED: Increased muscle PGC-1α expression protects from sarcopenia and metabolic disease during aging

Open access
Wenz, Tina, Rossi, Susana G., Rotundo, Richard L., Spiegelman, Bruce M., Moraes, Carlos T.·2009·Proceedings of the National Academy of Sciences

Abstract

Aging is a major risk factor for metabolic disease and loss of skeletal muscle mass and strength, a condition known as sarcopenia. Both conditions present a major health burden to the elderly population. Here, we analyzed the effect of mildly increased PGC-1α expression in skeletal muscle during aging. We found that transgenic MCK-PGC-1α animals had preserved mitochondrial function, neuromuscular junctions, and muscle integrity during aging. Increased PGC-1α levels in skeletal muscle prevented muscle wasting by reducing apoptosis, autophagy, and proteasome degradation. The preservation of muscle integrity and function in MCK-PGC-1α animals resulted in significantly improved whole-body health; both the loss of bone mineral density and the increase of systemic chronic inflammation, observed during normal aging, were prevented. Importantly, MCK-PGC-1α animals also showed improved metabolic responses as evident by increased insulin sensitivity and insulin signaling in aged mice. Our results highlight the importance of intact muscle function and metabolism for whole-body homeostasis and indicate that modulation of PGC-1α levels in skeletal muscle presents an avenue for the prevention and treatment of a group of age-related disorders.

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Crossref · 10.1073/pnas.0911570106This paper is marked retracted.

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38 of 38 references verified0 citation errors · 0 not checkable

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  • Sarcopenia involves autophagy of muscle structural components, and attenuation of autophagy with PPARGC1A overexpression mitigates sarcopenia.

    “On the other hand, sarcopenia involves autophagy of muscle structural components, and attenuation of autophagy with PPARGC1A overexpression mitigates sarcopenia [495].”
  • Forced overexpression of PGC-1α in muscle attenuates mitochondrial dysfunction and associated muscle atrophy in aging animals.

    “forced overexpression of this gene in muscle attenuates mitochondrial dysfunction and the associated muscle atrophy in aging animals.(Wenz, Rossi, Rotundo, Spiegelman, and Moraes 2009)”

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Authors
Wenz, T., Rossi, S. G., Rotundo, R. L., Spiegelman, B. M., & Moraes, C. T.
Affiliations
  • Departments of aNeurology and
  • University of Miami (US)
  • Harvard University (US)
Venue
Proceedings of the National Academy of Sciences
Published
2009-12
Volume
106
Issue
48
Pages
20405-20410
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2171217650
Cited by
600
References
38
Citations by year
2026: 5 · 2025: 7 · 2024: 11 · 2023: 8 · 2022: 18 · 2021: 23 · 2020: 23 · 2019: 21 · 2018: 23 · 2017: 33 · 2016: 61 · 2015: 68 · 2014: 67 · 2013: 85 · 2012: 75
FWCI
19.71
Type
journal article
Language
en
Status
Retracted
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute on Aging (AG0005917, R01AG005917)
  • National Eye Institute (EY10804, R01EY010804)
  • National Cancer Institute (CA 85700, R01CA085700)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK54477, R56DK054477, R01DK061562, R01DK054477, DK 61562)
  • National Institute of Neurological Disorders and Stroke (R56NS041777, R01NS041777, NS-041777)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
Keywords
PGC-1α, sarcopenia, skeletal muscle aging, metabolic disorders, mitochondrial function, neuromuscular junction, muscle atrophy, apoptosis, autophagy, proteasomal degradation, bone mineral density, chronic inflammation, insulin sensitivity, insulin signaling, transgenic mice, retraction
MeSH terms
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha, Aging, Animals, Body Composition, Body Constitution, Body Weight, Metabolic Diseases, Mice, Inbred C57BL, Mice, Transgenic, Mitochondria, Transcription Factors, Trans-Activators, Muscle, Skeletal, Mice, Sarcopenia

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