Epigenetics of multiple sclerosis: an updated review

Area of Science:

• Neuroimmunology
• Epigenetics
• Multiple Sclerosis Pathogenesis

Background:

• Multiple sclerosis (MS) is a complex inflammatory and neurodegenerative disease with a significant genetic and environmental component.
• Parent-of-origin effects and environmental risk factors suggest a role for epigenetics in MS.
• Epigenetic modifications like DNA methylation and histone deacetylation are implicated in regulating key genes in MS.

Purpose of the Study:

• To review the accumulating evidence for the role of epigenetics in multiple sclerosis.
• To explore how epigenetic mechanisms influence inflammation, neurodegeneration, and disease progression in MS.
• To discuss the potential of epigenetic factors as biomarkers and therapeutic targets for MS.

Main Methods:

• Review of current literature on epigenetics and multiple sclerosis.
• Analysis of epigenetic modifications (acetylation, methylation, citrullination) and microRNA expression in MS.
• Examination of therapeutic interventions targeting epigenetic pathways.

Main Results:

• Epigenetic dysregulation, including altered gene acetylation and methylation, is observed in MS, affecting inflammation and myelination.
• Specific microRNAs (e.g., miR-155, miR-326) show altered expression in MS and may contribute to pathogenesis.
• Epigenetic mechanisms underlying neurodegeneration, axonal loss, and mitochondrial dysfunction are under investigation.
• Histone deacetylase inhibitors have shown promise in ameliorating MS symptoms in experimental models.

Conclusions:

• Epigenetics is a critical factor in multiple sclerosis pathogenesis, impacting disease development and progression.
• Epigenetic modifications and microRNAs represent promising avenues for MS diagnostics and targeted therapies.
• Further research into epigenetic factors could lead to personalized treatment strategies for MS patients.