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The m6A epitranscriptome on neural development and degeneration
1Institute of Molecular Biology, Academia Sinica, Taipei, 11529, Taiwan. yapingyen@gate.sinica.edu.tw.
Journal of Biomedical Science
|May 27, 2021
Summary
N6-methyladenosine (m6A) RNA modification regulates gene expression and is crucial for brain development. Dysregulation of m6A is linked to neurodevelopmental and neurodegenerative diseases.
Area of Science:
- Epigenetics
- Molecular Biology
- Neuroscience
Background:
- N6-methyladenosine (m6A) is the most abundant RNA modification in eukaryotes.
- m6A acts as a critical regulator of gene expression, akin to epigenetic DNA modifications.
- m6A is dynamically regulated by writers, erasers, and readers, influencing mRNA fate.
Purpose of the Study:
- To review the role of m6A modifications in neural development.
- To explore the association between m6A dysregulation and neurodevelopmental and neurodegenerative disorders.
- To provide perspectives on future research directions for m6A methylation in the nervous system.
Main Methods:
- Literature review of m6A modification mechanisms.
- Analysis of studies on m6A's role in embryonic stem cell differentiation and brain development.
- Examination of research linking m6A to neurodevelopmental and neurodegenerative diseases.
Main Results:
- m6A levels are highest in the brain, impacting crucial neural processes.
- Depletion of the m6A writer Mettl14 affects radial glia cell cycle and cortical neurogenesis.
- Dysregulated m6A methylation is significantly correlated with neurodegenerative diseases.
Conclusions:
- m6A is a key epigenetic regulator in neural development.
- Aberrant m6A methylation contributes to neurodevelopmental and neurodegenerative pathologies.
- Further investigation into m6A is crucial for understanding and treating neurological disorders.
