Cited by 99Adipose Tissue and MetabolismMetabolism, Diabetes, and CancerMitochondrial Function and Pathology

Coordination of mitochondrial biogenesis by PGC-1α in human skeletal muscle: A re-evaluation

Islam, Hashim, Edgett, Brittany A., Gurd, Brendon J.·2018·Metabolism

Abstract

The transcriptional co-activator peroxisome proliferator-activated receptor gamma co-activator-1 alpha (PGC-1α) is proposed to coordinate skeletal muscle mitochondrial biogenesis through the integrated induction of nuclear- and mitochondrial-encoded gene transcription. This paradigm is based largely on experiments demonstrating PGC-1α's ability to co-activate various nuclear transcription factors that increase the expression of mitochondrial genes, as well as PGC-1α's direct interaction with mitochondrial transcription factor A within mitochondria to increase the transcription of mitochondrial DNA. While this paradigm is supported by evidence from cellular and transgenic animal models, as well as acute exercise studies involving animals, the up-regulation of nuclear- and mitochondrial-encoded genes in response to exercise does not appear to occur in a coordinated fashion in human skeletal muscle. This review re-evaluates our current understanding of this phenomenon by highlighting evidence from recent studies examining the exercise-induced expression of nuclear- and mitochondrial-encoded genes targeted by PGC-1α. We also highlight several possible theories that may explain the apparent inability of PGC-1α to coordinately up-regulate the expression of genes required for mitochondrial biogenesis in human skeletal muscle, and provide directions for future work exploring mitochondrial biogenic gene expression following exercise.

Integrity signals

Registry

Crossref · 10.1016/j.metabol.2017.11.001

Cites

94 of 94 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

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?

Cites

1 retracted

Flagged first, then by citations

2 of the 96 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Islam, H., Edgett, B. A., & Gurd, B. J.
Affiliations
Queen's University (CA)
Corresponding author
  • Islam, Hashim
  • Edgett, Brittany A.
  • Gurd, Brendon J.
Venue
Metabolism
Publisher
Elsevier BV
Published
2018-02
Volume
79
Pages
42-51
ISSN
0026-0495 (ISSN-L)
OpenAlex
W2767352135
Cited by
99
References
96
Citations by year
2026: 9 · 2025: 9 · 2024: 6 · 2023: 8 · 2022: 24 · 2021: 8 · 2020: 17 · 2019: 13 · 2018: 5
FWCI
1.17
Type
journal article
Language
en
Open access
closed
Locations
  • Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
Keywords
PGC-1α, mitochondrial biogenesis, skeletal muscle, physical activity, mitochondrial transcription, TFAM, nuclear genes, gene expression regulation, human skeletal muscle
MeSH terms
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha, Humans, Mitochondria, Muscle, Exercise, Muscle, Skeletal

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