Toxicological Perspectives on RNA m1A Methylation: Biological Processes and Pathological Consequences

Area of Science:

• Biochemistry
• Molecular Biology
• Environmental Health

Background:

• RNA N1-methyladenosine (m1A) methylation is a crucial epigenetic modification regulating gene expression.
• Environmental factors (pollutants, metals, radiation) and pathological conditions disrupt m1A homeostasis.
• Dysregulated m1A impacts cellular functions and is implicated in various diseases.

Purpose of the Study:

• To investigate the role of m1A methylation in response to environmental insults and disease.
• To explore m1A as a potential biomarker and therapeutic target.

Main Methods:

• Literature review and analysis of m1A modification patterns in disease contexts.
• Examination of the interplay between environmental factors, cellular stress, and m1A regulation.

Main Results:

• m1A levels are altered in neurodegeneration, ischemia-reperfusion injury, cancer, Alzheimer's disease, and myocardial infarction.
• Methyltransferases and binding proteins involved in m1A are often upregulated in disease.
• m1A acts as a molecular sensor linking environmental exposures to gene expression changes.

Conclusions:

• m1A methylation dynamically regulates gene expression in response to environmental and cellular conditions.
• m1A modification plays a bidirectional role in disease pathogenesis.
• m1A holds potential for toxicological risk assessment, precision medicine, and targeted therapies.