Epigenetic Regulatory Enzymes: mutation Prevalence and Coexistence in Cancers

Area of Science:

• Genetics and Molecular Biology
• Cancer Research
• Epigenetics

Background:

• Epigenetic regulation, including DNA methylation and histone modifications, is crucial for transcriptional control across the genome.
• Numerous cancer driver genes have been identified, yet some disease phenotypes lack relevant mutations or abnormal transcription.
• The interplay between DNA methylation and histone modifications in driving cancer progression is an active area of research.

Purpose of the Study:

• To discuss the mutation spectrum of epigenetically-related enzymes in cancer.
• To address the coexistence of DNA methylation and histone modifications in malignant diseases.
• To explore the potential of studying early developmental epigenetics for understanding cancer genomes.

Main Methods:

• Review and discussion of existing literature on epigenetically-related mutations in cancer.
• Analysis of the co-occurrence and inverse associations of epigenetic modifications in human diseases.
• Consideration of early embryonic development stages for studying somatic mutations.

Main Results:

• Epigenetically-related enzymes are frequently mutated in various cancers.
• Both DNA methylation and histone modifications are dysregulated and contribute to cancer phenotypes, sometimes independently of mutations.
• The study of early epigenetic events may provide insights into later cancer development.

Conclusions:

• Epigenetic alterations, particularly mutations in related enzymes, are significant contributors to cancer.
• Understanding the combined roles and associations of DNA methylation and histone modifications is vital for cancer research.
• Investigating epigenetic mutations during early development and refining control group definitions could advance our understanding of genome reorganization in cancer.