Histone modifications in herpesvirus infections.

Area of Science:

• Epigenetics
• Virology
• Molecular Biology

Background:

• Gene expression in eukaryotic cells is controlled by transcription factors and epigenetic mechanisms, including histone post-translational modifications (PTMs).
• Key histone PTMs include methylation, acetylation, ubiquitination, and phosphorylation, which are crucial for regulating chromatin structure and gene accessibility.
• Viruses, including herpesviruses, can hijack these host epigenetic machinery to alter the cellular epigenetic landscape for their own benefit.

Purpose of the Study:

• To review how herpesviruses specifically interfere with histone-modifying enzymes.
• To explore the mechanisms by which herpesviruses manipulate host epigenetic regulation for replication.
• To highlight the implications of studying herpesvirus-host epigenetic interactions for understanding pathogenesis and developing therapies.

Main Methods:

• This review synthesizes existing literature on herpesvirus interactions with host histone-modifying enzymes.
• It focuses on the functional consequences of these interactions on viral replication cycles.
• The review examines common strategies employed by different herpesviruses.

Main Results:

• Herpesviruses encode viral proteins that target and modulate the activity of host histone-modifying enzymes.
• These viral proteins disrupt normal epigenetic regulation, creating a cellular environment conducive to viral replication.
• Despite diverse hosts and diseases, herpesviruses share common strategies for epigenetic manipulation.

Conclusions:

• Herpesviruses extensively utilize and manipulate host epigenetic machinery, particularly histone modification pathways, to control their replication.
• Investigating these epigenetic dysregulations provides critical insights into herpesvirus pathogenesis.
• Targeting these virus-host epigenetic interactions holds promise for novel therapeutic interventions against herpesvirus infections.