Epigenetics of malignant melanoma

Area of Science:

• Oncology
• Molecular Biology
• Epigenetics

Background:

• Malignant melanoma prognosis improves significantly when detected before metastasis.
• Targeted and immunotherapies have increased metastatic melanoma survival to over two years.
• Melanoma exhibits high somatic mutation rates, with UV radiation damage signatures and frequent BRAF mutations.

Purpose of the Study:

• To review the literature on epigenetic alterations in melanoma.
• To highlight the integral involvement of epigenetic mechanisms in melanoma malignancy.
• To focus on current evidence of DNA methylation, histone modifications, chromatin remodeling, and non-coding RNAs in melanoma.

Main Methods:

• Literature review of epigenetic mechanisms in melanoma.
• Assessment of studies involving specific epigenetic alterations.
• Focus on clinical relevance where possible.

Main Results:

• Epigenetic alterations are integral to melanoma development.
• Key epigenetic mechanisms include DNA methylation/demethylation, 5-hydroxymethylcytosine, histone modifications, chromatin remodeling complexes (PRC2/EZH2), and non-coding RNAs.
• Evidence links these mechanisms to melanoma progression and potential clinical applications.

Conclusions:

• Epigenetic alterations are fundamental to melanoma pathogenesis.
• Understanding these mechanisms offers insights into melanoma biology.
• Further research into epigenetic targets may improve melanoma treatment strategies.