HDACi: cellular effects, opportunities for restorative dentistry

Area of Science:

• Epigenetics and Molecular Biology
• Biochemistry

Background:

• Protein acetylation, regulated by histone acetyltransferases (HATs) and histone deacetylases (HDACs), influences gene expression and cellular functions.
• HDACs cause gene silencing, while HATs promote transcriptional activity.
• Histone deacetylase inhibitors (HDACi) disrupt this balance, leading to protein hyperacetylation and altered cellular processes.

Purpose of the Study:

• To explore the broad cellular effects of histone deacetylase inhibitors (HDACi).
• To review the therapeutic potential of HDACi in various clinical applications, including cancer and non-cancer diseases.
• To investigate the potential application of HDACi in restorative dentistry for dental tissue regeneration.

Main Methods:

• Review of existing literature on histone acetylation and the effects of HDAC inhibitors.
• Analysis of the differential impact of HDACi on normal versus transformed cells.
• Exploration of epigenetic mechanisms underlying HDACi action.

Main Results:

• HDACi induce accumulation of acetylated proteins, affecting stem cell differentiation, cell cycle, apoptosis, gene expression, and angiogenesis.
• HDACi exhibit pleiotropic effects with applications in oncology, chronic inflammatory diseases, bone engineering, and neurodegenerative disorders.
• HDACi effects, including reactive oxygen species accumulation, apoptosis, proliferation, and cell cycle arrest, may differ between normal and transformed cells.

Conclusions:

• HDACi represent a promising class of epigenetic modifiers with diverse therapeutic potential.
• The ability of HDACi to regulate global gene expression offers opportunities for treating various diseases.
• HDACi may facilitate dental tissue regeneration, presenting a novel application in restorative dentistry.