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Manipulating the Epigenome in Nuclear Transfer Cloning: Where, When and How
Kilian Simmet1,2, Eckhard Wolf1,2,3, Valeri Zakhartchenko1,2
1Institute of Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, 81377 Munich, Germany.
International Journal of Molecular Sciences
|December 31, 2020
Summary
Somatic cell nuclear transfer (SCNT) allows reprogramming differentiated cell nuclei to totipotency. This review details epigenome manipulation strategies to improve SCNT outcomes in animal biotechnology.
Area of Science:
- Developmental Biology
- Epigenetics
- Animal Biotechnology
Background:
- Nuclear reprogramming restores totipotency to differentiated somatic cells.
- Somatic cell nuclear transfer (SCNT) is a key technology in animal biotechnology.
- Understanding epigenetic barriers is crucial for efficient SCNT.
Purpose of the Study:
- To review methods for optimizing SCNT through epigenome manipulation.
- To detail strategies for overcoming epigenetic barriers in nuclear reprogramming.
- To provide insights into targeted epigenetic modifications for improved cloning outcomes.
Main Methods:
- Review of scientific literature on SCNT and epigenome editing.
- Analysis of studies manipulating DNA methylation and histone modifications.
- Examination of targeted epigenetic interventions in donor cells and SCNT embryos.
Main Results:
- Early SCNT strategies focused on global epigenetic changes.
- Recent approaches emphasize targeted epigenetic modifications.
- Specific timing and location of epigenome manipulation are critical for success.
Conclusions:
- Targeted epigenome manipulation enhances molecular reprogramming in SCNT.
- Optimized SCNT improves cloning efficiency and developmental potential.
- This review provides a framework for advancing SCNT technologies.
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