Cited by 559Adipose Tissue and MetabolismCardiovascular and exercise physiologyMuscle Physiology and Disorders

Repeated transient mRNA bursts precede increases in transcriptional and mitochondrial proteins during training in human skeletal muscle: Molecular responses during mitochondrial biogenesis

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Perry, Christopher G. R., Lally, James, Holloway, Graham P., Heigenhauser, George J. F., Bonen, Arend, Spriet, Lawrence L.·2010·The Journal of Physiology

Abstract

Exercise training induces mitochondrial biogenesis, but the time course of molecular sequelae that accompany repetitive training stimuli remains to be determined in human skeletal muscle. Therefore, throughout a seven-session, high-intensity interval training period that increased (12%), we examined the time course of responses of (a) mitochondrial biogenesis and fusion and fission proteins, and (b) selected transcriptional and mitochondrial mRNAs and proteins in human muscle. Muscle biopsies were obtained 4 and 24 h after the 1st, 3rd, 5th and 7th training session. PGC-1α mRNA was increased >10-fold 4 h after the 1st session and returned to control within 24 h. This 'saw-tooth' pattern continued until the 7th bout, with smaller increases after each bout. In contrast, PGC-1α protein was increased 24 h after the 1st bout (23%) and plateaued at +30-40% between the 3rd and 7th bout. Increases in PGC-1β mRNA and protein were more delayed and smaller, and did not persist. Distinct patterns of increases were observed in peroxisome proliferator-activated receptor (PPAR) α and γ protein (1 session), PPAR β/δ mRNA and protein (5 sessions) and nuclear respiratory factor-2 protein (3 sessions) while no changes occurred in mitochondrial transcription factor A protein. Citrate synthase (CS) and β-HAD mRNA were rapidly increased (1 session), followed 2 sessions later (session 3) by increases in CS and β-HAD activities, and mitochondrial DNA. Changes in COX-IV mRNA (session 3) and protein (session 5) were more delayed. Training also increased mitochondrial fission proteins (fission protein-1, >2-fold; dynamin-related protein-1, 47%) and the fusion protein mitofusin-1 (35%) but not mitofusin-2. This study has provided the following novel information: (a) the training-induced increases in transcriptional and mitochondrial proteins appear to result from the cumulative effects of transient bursts in their mRNAs, (b) training-induced mitochondrial biogenesis appears to involve re-modelling in addition to increased mitochondrial content, and (c) the 'transcriptional capacity' of human muscle is extremely sensitive, being activated by one training bout.

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Crossref · 10.1113/jphysiol.2010.199448

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  • Compared to trained athletes, untrained individuals have a greater capacity to activate the molecular machinery in muscle in response to contractile activity because any overload stimulus induces large perturbations to cellular homeostasis regardless of the mode of exercise.

    “Compared to trained athletes, untrained individuals have a greater capacity to activate the molecular machinery in muscle in response to contractile activity because any overload stimulus induces large perturbations to cellular homeostasis regardless of the mode of exercise (Benziane et al., 2008b;Perry et al., 2010;Nader et al., 2014).”

    From Concurrent exercise training: do opposites distract? (2017) · cites this paper as Perry et al., 2010

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  • Repeated, transient increases in mRNA induced after each exercise session are necessary to elicit the sustained increases observed in the content of transcription and metabolic proteins.

    “They demonstrated that the repeated, transient increases in mRNA induced after each exercise session were necessary to elicit the sustained increases observed in the content of transcription and metabolic proteins.”

    From Concurrent exercise training: do opposites distract? (2017) · cites this paper as Perry et al., 2010

    The Discussion reports repeated transient mRNA increases followed by sustained increases in transcription and metabolic proteins. It says the findings support a hypothesis that mRNA bursts are required for adaptation, but does not demonstrate that they are necessary; the citing sentence overstates that conclusion. (LLM, conf=0.86)

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  • Even during a short-term intervention, mRNA responses to exercise are attenuated as the muscle adapts to the exercise challenge, even in the face of an increasing training intensity.

    “Of note was that even during such a short-term intervention, the mRNA responses to exercise were attenuated as the muscle adapted to the exercise challenge, even in the face of an increasing training intensity.”

    From Concurrent exercise training: do opposites distract? (2017) · cites this paper as Perry et al., 2010

  • Transcriptional changes accumulate over time such that the protein expression profile of muscle is changed, resulting in an altered phenotype.

    “The transcriptional changes accumulate over time such that the protein expression profile of muscle is changed resulting in an altered phenotype [2,8].”
  • The adaptive processes of endurance training are driven by transcriptional changes in response to each bout of exercise.

    “These adaptive processes are driven by transcriptional changes in response to each bout of exercise [2,8].”

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Research works printed but not linked: 2

  1. Bergmeyer HU. Methods in Enzymatic Analyses. New York: Academic; 1974. [Google Scholar]
  2. Srere P. Citrate synthase. In: Lowenstein J, editor. Methods in Enzymology. New York: Academic Press; 1969. pp. 3–11. [Google Scholar]

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Authors
Perry, C. G. R., Lally, J., Holloway, G. P., Heigenhauser, G. J. F., Bonen, A., & Spriet, L. L.
Affiliations
  • East Carolina University (US)
  • University of Guelph (CA)
  • McMaster University (CA)
Venue
The Journal of Physiology
Publisher
Wiley
Published
2010-11-30
Volume
588
Issue
23
Pages
4795-4810
ISSN
0022-3751 (ISSN-L)
OpenAlex
W2124056915
Cited by
559
References
82
Citations by year
2026: 21 · 2025: 31 · 2024: 35 · 2023: 33 · 2022: 38 · 2021: 44 · 2020: 41 · 2019: 49 · 2018: 42 · 2017: 44 · 2016: 44 · 2015: 41 · 2014: 26 · 2013: 38 · 2012: 23
FWCI
15.17
Type
journal article
Language
en
Open access
Locations
  • The Journal of Physiology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • McMaster University
  • Canada Research Chairs
  • Natural Sciences and Engineering Research Council of Canada
Topics
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
Keywords
exercise training, skeletal muscle, mitochondrial biogenesis, high-intensity interval training, PGC-1α, PGC-1β, peroxisome proliferator-activated receptors, TFAM, mitochondrial fission, mitochondrial fusion, mitofusin 1, Drp1, citrate synthase, beta-hydroxyacyl-CoA dehydrogenase, cytochrome c oxidase subunit IV, mitochondrial DNA
MeSH terms
Gene Expression Regulation, Humans, Male, Muscle Proteins, RNA, Messenger, Transcription Factors, Exercise, Muscle, Skeletal, Protein Isoforms, Mitochondrial Proteins, Young Adult

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