H4K5 Butyrylation Coexist with Acetylation during Human Spermiogenesis and Are Retained in the Mature Sperm Chromatin

Male germ cells experience a drastic chromatin remodeling through the nucleo-histone to nucleo-protamine (NH-NP) transition necessary for proper sperm functionality. Post-translational modifications (PTMs) of H4 Lys5, such as acetylation (H4K5ac), play a crucial role in epigenetic control of nucleos...

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Veröffentlicht in:International journal of molecular sciences 2022-10, Vol.23 (20), p.12398
Hauptverfasser: de la Iglesia, Alberto, Jauregi, Paula, Jodar, Meritxell, Barrachina, Ferran, Ded, Lukas, Mallofré, Carme, Rodríguez-Carunchio, Leonardo, Corral, Juan Manuel, Ballescà, Josep Lluís, Komrskova, Katerina, Castillo, Judit, Oliva, Rafael
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container_issue 20
container_start_page 12398
container_title International journal of molecular sciences
container_volume 23
creator de la Iglesia, Alberto
Jauregi, Paula
Jodar, Meritxell
Barrachina, Ferran
Ded, Lukas
Mallofré, Carme
Rodríguez-Carunchio, Leonardo
Corral, Juan Manuel
Ballescà, Josep Lluís
Komrskova, Katerina
Castillo, Judit
Oliva, Rafael
description Male germ cells experience a drastic chromatin remodeling through the nucleo-histone to nucleo-protamine (NH-NP) transition necessary for proper sperm functionality. Post-translational modifications (PTMs) of H4 Lys5, such as acetylation (H4K5ac), play a crucial role in epigenetic control of nucleosome disassembly facilitating protamine incorporation into paternal DNA. It has been shown that butyrylation on the same residue (H4K5bu) participates in temporal regulation of NH-NP transition in mice, delaying the bromodomain testis specific protein (BRDT)-dependent nucleosome disassembly and potentially marking retained nucleosomes. However, no information was available so far on this modification in human sperm. Here, we report a dual behavior of H4K5bu and H4K5ac in human normal spermatogenesis, suggesting a specific role of H4K5bu during spermatid elongation, coexisting with H4K5ac although with different starting points. This pattern is stable under different testicular pathologies, suggesting a highly conserved function of these modifications. Despite a drastic decrease of both PTMs in condensed spermatids, they are retained in ejaculated sperm, with 30% of non-colocalizing nucleosome clusters, which could reflect differential paternal genome retention. Whereas no apparent effect of these PTMs was observed associated with sperm quality, their presence in mature sperm could entail a potential role in the zygote.
doi_str_mv 10.3390/ijms232012398
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subjects Acetylation
Chromatin remodeling
Dismantling
Elongation
Epigenetics
Genomes
Germ cells
Histones
Nucleosomes
Patients
Post-translation
Protamine
Retention
Sperm
Spermatids
Spermatogenesis
Spermiogenesis
Testicular cancer
Zygotes
title H4K5 Butyrylation Coexist with Acetylation during Human Spermiogenesis and Are Retained in the Mature Sperm Chromatin
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