Combinational Treatment of Trichostatin A and Vitamin C Improves the Efficiency of Cloning Mice by Somatic Cell Nuclear Transfer
April 26th, 2018
We describe a dramatically improved method for mouse cloning using trichostatin A, vitamin C, and deionized bovine serum albumin. We show a simplified, reproducible protocol that supports efficient development of cloned embryos. Hence, this method could become a standardized procedure for mouse cloning.
Overview
This article presents a refined method for mouse cloning utilizing trichostatin A, vitamin C, and deionized bovine serum albumin. The protocol is designed to enhance the efficiency of cloned embryo development, potentially standardizing the cloning process in mice.
Key Study Components
Area of Science
- Developmental Biology
- Cloning Techniques
- Embryonic Development
Background
- Somatic cell nuclear transfer (SCNT) is a key technique in cloning.
- Improving embryo production efficiency is crucial for research and conservation.
- Trichostatin A and vitamin C have been shown to enhance cloning outcomes.
- Standardized protocols can facilitate reproducibility in cloning experiments.
Purpose of Study
- To develop a more efficient method for producing cloned mice.
- To address fundamental questions in developmental biology.
- To provide a reliable protocol for researchers in cloning and conservation.
Methods Used
- Preparation of culture media with specific components.
- Isolation and enucleation of oocytes from female mice.
- Cell fusion techniques using HVJ-E suspension.
- Incubation of reconstructed oocytes in activation medium.
Main Results
- The method resulted in a practical level of efficiency for cloning.
- Cloned embryos developed successfully using the new protocol.
- Standardization of the procedure may enhance reproducibility in future studies.
- Key insights into nuclear programming and embryonic development were obtained.
Conclusions
- This improved cloning method could significantly impact research in developmental biology.
- It provides a foundation for future studies on cloning efficiency and embryo development.
- The protocol may aid in conservation efforts for endangered species.
Frequently Asked Questions
Executive Industry Relevance
Enhancing the efficiency of somatic cell nuclear transfer (SCNT) in mice addresses a critical bottleneck in translational genetics and developmental biology. The combinational use of trichostatin A and vitamin C with deionized BSA enables more reliable generation of cloned embryos, supporting both research and conservation pipelines. This streamlined protocol increases predictive confidence for producing genetically modified or rescued animal models, directly impacting early discovery and preclinical research portfolios.
Strategic Applications in Biopharma R&D
Early Discovery & Target Validation
- Enables interrogation of nuclear reprogramming and developmental pathways in mammalian systems.
- Supports functional validation of genetic modifications in vivo using cloned animal models.
- Facilitates mechanistic de-risking by providing reproducible embryonic development outcomes.
Screening & Assay Development
- Prepares validated reconstructed embryos for downstream genetic or phenotypic screening.
- Standardizes embryo production, improving reproducibility and quantitative assessment of developmental endpoints.
- Enables scalable generation of embryos for high-throughput evaluation of reprogramming factors.
Translational & Preclinical Research
- Provides continuity from genetic manipulation in vitro to in vivo validation in cloned animals.
- Aligns with translational biomarker studies by enabling controlled genetic backgrounds in animal models.
- Supports risk-adjusted advancement of genetically engineered or rescued animal lines for preclinical studies.
Pipeline & Workflow Integration
This protocol integrates into the discovery continuum from early hypothesis testing through lead identification and preclinical validation, particularly for genetic and developmental studies.
- Discovery Biology: Supports hypothesis testing in nuclear programming and embryonic development.
- Screening: Delivers reproducible, quantitative embryo production for downstream assays.
- Analytics: Provides measurable outputs such as pronuclear formation and blastocyst rates for condition comparison.
- Translational Research: Enables generation of animal models with defined genetic backgrounds for biomarker and efficacy studies.
- Enterprise Reuse: Offers a standardized, scalable protocol adaptable across research teams and model systems.
Operational & Enterprise Impact
- Scientific Value: Increases predictive confidence and reduces ambiguity in developmental and genetic studies.
- Operational Value: Streamlines embryo production with standardized, reproducible procedures.
- Strategic Value: Improves go/no-go decision-making and capital efficiency in animal model generation.
- Portfolio Impact: Enables risk-adjusted prioritization of genetic and conservation projects.
Implementation Considerations
- Requires expertise in micromanipulation and embryology techniques.
- Needs access to specialized instrumentation for oocyte handling and cell fusion.
- Demands rigorous cross-team standardization of media and reagent preparation.
- Adaptation may be needed for different donor cell types or species.
- Efficiency and reproducibility depend on precise execution and material quality.
Biopharma FAQs
Chapters in this video
0:05
Title
0:52
Preparation of Deionized Bovine Serum Albumin
1:48
Oocyte Collection
3:26
Preparation of Donor Cells for Nuclear Transfer and Enucleation of Oocytes
5:32
Fusion of Donor Cell and Enucleated Oocyte
7:42
Activation of Reconstructed Oocytes and Treatment with Trichostatin A and Vitamin C
8:26
Results: Somatic Cell Nuclear Transfer in Mice using Trichostatin A and Vitamin C Treatment
9:15
Conclusion
