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Author Spotlight: Understanding DNA Damage Response in Mammalian Oocytes and Preimplantation Embryos
Published on: June 23, 2023
MicroRNA expression and its association with DNA repair in preimplantation embryos
Pinar Tulay1, Sioban B Sengupta
1Near East University, Faculty of Medicine, Department of Medical Genetics, Nicosia, Cyprus.
Abstract:
Active DNA repair pathways are crucial for preserving genomic integrity and are likely among the complex mechanisms involved in the normal development of preimplantation embryos. MicroRNAs (miRNA), short non-coding RNAs, are key regulators of gene expression through the post-transcriptional and post-translational modification of mRNA. The association of miRNA expression with infertility or polycystic ovarian syndrome has been widely investigated; however, there are limited data regarding the importance of miRNA regulation in DNA repair during preimplantation embryo development. In this article, we review normal miRNA biogenesis and consequences of aberrant miRNA expression in the regulation of DNA repair in gametes and preimplantation embryos.
Insights
MicroRNAs regulate DNA repair for healthy embryo development. Aberrant microRNA expression impacts genomic integrity in gametes and early embryos.
Area of Science:
- Reproductive biology
- Genetics
- Molecular biology
Background:
- Genomic integrity is vital for preimplantation embryo development, relying on active DNA repair pathways.
- MicroRNAs (miRNAs) are key gene regulators impacting cellular processes.
- While miRNA's role in infertility is studied, their function in embryonic DNA repair is less understood.
Purpose of the Study:
- To review microRNA biogenesis and function.
- To explore the impact of aberrant microRNA expression on DNA repair mechanisms.
- To highlight the significance of microRNA regulation in gametes and preimplantation embryos.
Main Methods:
- Literature review of microRNA biogenesis.
- Analysis of microRNA's role in gene expression regulation.
- Review of studies on DNA repair pathways in reproductive cells and embryos.
Main Results:
- MicroRNAs are essential for post-transcriptional gene regulation.
- Dysregulated microRNA expression can disrupt DNA repair processes.
- Evidence suggests a critical role for miRNAs in maintaining genomic stability during early development.
Conclusions:
- MicroRNA regulation is crucial for DNA repair in gametes and preimplantation embryos.
- Understanding miRNA's role can offer insights into infertility and developmental issues.
- Further research into miRNA-mediated DNA repair is warranted for reproductive health.
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