Related Experiment Video
Updated: May 16, 2026
04:36
A Simple Microaspiration Technique for Isolating Somatic Cells from Cryopreserved Equine Semen as Nuclear Donors for Cloning
Published on: December 19, 2025
Recent advancements in cloning by somatic cell nuclear transfer
Atsuo Ogura1, Kimiko Inoue, Teruhiko Wakayama
1RIKEN BioResource Center, Tsukuba, Ibaraki, Japan. ogura@rtc.riken.go.jp
Summary
Somatic cell nuclear transfer (SCNT) cloning reprograms adult cells to a totipotent state. Advances in epigenetic modifications, like histone acetylation, are key to improving SCNT efficiency for future applications.
Area of Science:
- Reproductive biology
- Epigenetics
- Developmental biology
Background:
- Somatic cell nuclear transfer (SCNT) is the only technology enabling somatic cell genome totipotency.
- SCNT technology has seen significant improvements since the first cloned sheep in 1997.
- Epigenetic modifications are crucial for successful SCNT.
Purpose of the Study:
- To review recent advancements in somatic cell cloning.
- To emphasize the role of epigenetic studies in SCNT.
- To highlight the use of the laboratory mouse as a model organism.
Main Methods:
- Review of scientific literature on SCNT and epigenetics.
- Focus on epigenetic modifications, specifically histone acetylation.
- Utilizing the laboratory mouse as a model system for SCNT research.
Main Results:
- SCNT technology has advanced through various epigenetic strategies.
- Enhancement of histone acetylation levels in reconstructed embryos improves SCNT outcomes.
- The laboratory mouse serves as a valuable model for understanding SCNT-related epigenetics.
Conclusions:
- SCNT technology is progressing towards broader practical applications in medicine, pharmaceuticals, and agriculture.
- Further understanding of genomic programming and totipotency is needed.
- Epigenetic approaches, particularly histone acetylation, are vital for enhancing SCNT efficiency.
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13:36Transnuclear Mice with Pre-defined T Cell Receptor Specificities Against Toxoplasma gondii Obtained Via SCNT
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