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Retrotransposons in embryogenesis and neurodevelopment
Mary Jo Talley1, Michelle S Longworth1,2
1Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, U.S.A.
Biochemical Society Transactions
|May 8, 2024
Summary
Retrotransposable elements (RTEs) are genetic elements with dual roles. While often parasitic, they are crucial for development, but their overactivation links to disorders.
Area of Science:
- Genetics
- Developmental Biology
- Molecular Biology
Background:
- Retrotransposable elements (RTEs) are mobile genetic sequences.
- Historically viewed as 'parasitic genes' due to their potential to cause mutations and DNA damage.
- RTEs are highly active during early embryogenesis and neurodevelopment, suggesting crucial functional roles.
Purpose of the Study:
- To explore the functional significance of RTEs during development.
- To investigate the regulatory mechanisms by which RTEs influence gene expression.
- To understand the delicate balance between beneficial RTE activity and detrimental overactivation in neurodevelopment.
Main Methods:
- Literature review of recent studies on RTEs.
- Analysis of RTEs' roles in chromatin organization.
- Examination of RTE-derived noncoding RNAs in gene regulation.
Main Results:
- RTEs can act as transcriptional regulatory elements.
- Mechanisms include influencing chromatin structure and producing noncoding RNAs.
- Aberrant RTE activation during neurodevelopment is linked to developmental disorders.
Conclusions:
- RTEs possess essential developmental functions, particularly in neurodevelopment.
- Tight regulation of RTE expression is critical to prevent pathogenesis.
- Further research is needed to elucidate the precise roles and regulation of RTEs in development and disease.
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