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Updated: Jun 23, 2026
08:21
Isolation of Murine Spermatogenic Cells using a Violet-Excited Cell-Permeable DNA Binding Dye
Published on: January 14, 2021
[Spermiogenesis: histone acetylation triggers male genome reprogramming]
S Rousseaux1, J Gaucher, J Thevenon
1Inserm U823, université Joseph-Fourier, institut Albert-Bonniot, domaine de la Merci, 38706 Grenoble, France. sophie.rousseaux@ujf-grenoble.fr
Gynecologie, Obstetrique & Fertilite
|May 19, 2009
Summary
Male germ cell genome reprogramming involves histone removal and protamine replacement. Key factors like Bromodomain Testis Specific (BRDT) are identified, with mutations impacting male fertility.
Area of Science:
- Reproductive Biology
- Molecular Genetics
- Chromatin Dynamics
Context:
- Post-meiotic male germ cell maturation requires extensive genome reorganization.
- Histone-to-protamine exchange is crucial for DNA packaging in sperm.
- The molecular mechanisms underlying this fundamental process remain largely unknown.
Purpose:
- To identify and functionally characterize key factors involved in male genome reprogramming.
- To propose the first molecular model for post-meiotic male genome reprogramming.
- To investigate the role of Bromodomain Testis Specific (BRDT) in chromatin compaction.
Summary:
- Identified novel factors and elucidated mechanisms of male genome reprogramming.
- Bromodomain Testis Specific (BRDT) uniquely compacts acetylated chromatin.
- A homozygous mutation in BRDT was found in infertile men, disrupting its function.
Impact:
- Provides a comprehensive understanding of male genome reprogramming and transmission.
- Reveals new major actors in male fertility and genome integrity.
- Offers insights into the molecular basis of male infertility linked to BRDT mutations.
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