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@ARTICLE{Geiger:291529,
author = {C. Geiger and M. Needhamsen and E. B. Emanuelsson and J.
Norrbom and K. Steindorf$^*$ and C. J. Sundberg and S. M.
Reitzner and M. E. Lindholm},
title = {{DNA} methylation of exercise-responsive genes differs
between trained and untrained men.},
journal = {BMC biology},
volume = {22},
number = {1},
issn = {1741-7007},
address = {Heidelberg},
publisher = {Springer},
reportid = {DKFZ-2024-01423},
pages = {147},
year = {2024},
abstract = {Physical activity is well known for its multiple health
benefits and although the knowledge of the underlying
molecular mechanisms is increasing, our understanding of the
role of epigenetics in long-term training adaptation remains
incomplete. In this intervention study, we included
individuals with a history of > 15 years of regular
endurance or resistance training compared to age-matched
untrained controls performing endurance or resistance
exercise. We examined skeletal muscle DNA methylation of
genes involved in key adaptation processes, including
myogenesis, gene regulation, angiogenesis and metabolism.A
greater number of differentially methylated regions and
differentially expressed genes were identified when
comparing the endurance group with the control group than in
the comparison between the strength group and the control
group at baseline. Although the cellular composition of
skeletal muscle samples was generally consistent across
groups, variations were observed in the distribution of
muscle fiber types. Slow-twitch fiber type genes MYH7 and
MYL3 exhibited lower promoter methylation and elevated
expression in endurance-trained athletes, while the same
group showed higher methylation in transcription factors
such as FOXO3, CREB5, and PGC-1α. The baseline DNA
methylation state of those genes was associated with the
transcriptional response to an acute bout of exercise. Acute
exercise altered very few of the investigated CpG
sites.Endurance- compared to resistance-trained athletes and
untrained individuals demonstrated a different DNA
methylation signature of selected skeletal muscle genes,
which may influence transcriptional dynamics following a
bout of acute exercise. Skeletal muscle fiber type
distribution is associated with methylation of fiber type
specific genes. Our results suggest that the baseline DNA
methylation landscape in skeletal muscle influences the
transcription of regulatory genes in response to an acute
exercise bout.},
keywords = {Humans / DNA Methylation / Male / Exercise: physiology /
Adult / Muscle, Skeletal: metabolism / Muscle, Skeletal:
physiology / Resistance Training / Epigenesis, Genetic /
Physical Endurance: genetics / DNA methylation (Other) /
Enzymatic methyl sequencing (Other) / Epigenomics (Other) /
Exercise (Other) / Gene expression (Other) / Training
(Other)},
cin = {C110},
ddc = {610},
cid = {I:(DE-He78)C110-20160331},
pnm = {313 - Krebsrisikofaktoren und Prävention (POF4-313)},
pid = {G:(DE-HGF)POF4-313},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:38965555},
pmc = {pmc:PMC11225400},
doi = {10.1186/s12915-024-01938-6},
url = {https://inrepo02.dkfz.de/record/291529},
}