17α-Ethynylestradiol alters testicular epigenetic profiles and histone-to-protamine exchange in mice
Jazyk angličtina Země Anglie, Velká Británie Médium electronic
Typ dokumentu časopisecké články
Grantová podpora
GJ20-17403Y
Grantová Agentura České Republiky
STE 892/20-1
Deutsche Forschungsgemeinschaft
PubMed
39491035
PubMed Central
PMC11533287
DOI
10.1186/s12958-024-01307-6
PII: 10.1186/s12958-024-01307-6
Knihovny.cz E-zdroje
- Klíčová slova
- 17α-Ethynylestradiol, DNA methylation, EE2, Endocrine disruptors, Histone-to-protamine exchange, Post-translational modifications, Sperm, Testis, Transgenerational study,
- MeSH
- endokrinní disruptory farmakologie toxicita MeSH
- epigeneze genetická * účinky léků MeSH
- ethinylestradiol * farmakologie MeSH
- histony * metabolismus MeSH
- myši MeSH
- posttranslační úpravy proteinů účinky léků MeSH
- protaminy * metabolismus genetika MeSH
- spermatogeneze * účinky léků genetika MeSH
- spermie účinky léků metabolismus MeSH
- testis * účinky léků metabolismus MeSH
- zvířata MeSH
- Check Tag
- mužské pohlaví MeSH
- myši MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- endokrinní disruptory MeSH
- ethinylestradiol * MeSH
- histony * MeSH
- protaminy * MeSH
Spermatogenesis starts with the onset of puberty within the seminiferous epithelium of the testes. It is a complex process under intricate control of the endocrine system. Physiological regulations by steroid hormones in general and by estrogens in particular are due to their chemical nature prone to be disrupted by exogenous factors acting as endocrine disruptors (EDs). 17α-Ethynylestradiol (EE2) is an environmental pollutant with a confirmed ED activity and a well-known effect on spermatogenesis and chromatin remodeling in haploid germ cells. The aim of our study was to assess possible effects of two doses (2.5ng/ml; 2.5 μg/ml) of EE2 on both histone-to-protamine exchange and epigenetic profiles during spermatogenesis performing a multi/transgenerational study in mice. Our results demonstrated an impaired histone-to-protamine exchange with a significantly higher histone retention in sperm nuclei of exposed animals, when this process was accompanied by the changes of histone post-translational modifications (PTMs) abundancies with a prominent effect on H3K9Ac and partial changes in protamine 1 promoter methylation status. Furthermore, individual changes in molecular phenotypes were partially transmitted to subsequent generations, when no direct trans-generational effect was observed. Finally, the uncovered specific localization of the histone retention in sperm nuclei and their specific PTMs profile after EE2 exposure may indicate an estrogenic effect on sperm motility and early embryonic development via epigenetic mechanisms.
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