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2-Cell-like Cells: An Avenue for Improving SCNT Efficiency
Bo Fu1,2, Hong Ma1,2, Di Liu1,2
1Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China.
Biomolecules
|November 11, 2022
Summary
Totipotency, the ability of a cell to differentiate into any cell type, can be transiently restored in embryonic stem cells (ESCs) and may improve somatic cell nuclear transfer (SCNT) efficiency.
Area of Science:
- Developmental Biology
- Epigenetics
- Stem Cell Biology
Background:
- Zygote genome reorganization establishes totipotency, which then declines.
- Embryonic stem cells (ESCs) can transiently regain totipotency.
- Somatic cell nuclear transfer (SCNT) often shows deficient totipotency establishment in cloned embryos.
Purpose of the Study:
- To review strategies for inducing 2-cell-like cells (2CLCs) in cloned embryos.
- To explore the potential of 2CLCs for improving SCNT efficiency.
- To investigate pathways for establishing totipotency in cloned embryos.
Main Methods:
- Review of existing literature on 2CLC induction and SCNT.
- Analysis of transcriptome and chromatin features of 2CLCs.
- Hypothesizing pathways for totipotency establishment in cloned embryos.
Main Results:
- 2CLCs exhibit transcriptome and chromatin features similar to 2-cell-stage embryos.
- Strategies to induce 2CLCs are being investigated in cloned embryo development.
- A potential pathway for cloned embryos to establish totipotency is proposed.
Conclusions:
- 2CLCs serve as a valuable in vitro model for studying totipotency.
- Inducing 2CLCs may offer new avenues to enhance SCNT efficiency.
- Further research into 2CLC induction could advance reproductive technologies.
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