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Mouse Sperm Cryopreservation and Recovery using the I·Cryo Kit
Published on: December 12, 2011
Archiving and distributing mouse lines by sperm cryopreservation, IVF, and embryo transfer
Hideko Takahashi1, Chengyu Liu
1Veterinary Research & Resource Section, and Genetics Engineering Facility, National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
Methods in Enzymology
|August 10, 2010
Summary
Cryopreserving sperm from genetically modified mice is an efficient alternative to embryo preservation. This method, enhanced by monothioglycerol, offers a cost-effective way to safeguard valuable mouse lines.
Area of Science:
- Genetics
- Reproductive Biology
- Cryobiology
Background:
- Genetically modified mouse lines are increasing exponentially.
- Cryopreservation is crucial for safeguarding genetic resources, reducing costs, and facilitating global distribution.
- Traditional embryo cryopreservation is resource-intensive, requiring hundreds of embryos per line.
Purpose of the Study:
- To detail a streamlined protocol for cryopreserving genetically modified mouse lines.
- To present sperm cryopreservation as a viable and efficient alternative to embryo preservation.
- To optimize the storage and revival of valuable genetic resources.
Main Methods:
- Detailed description of sperm cryopreservation techniques.
- In vitro fertilization (IVF) procedures optimized for cryopreserved sperm.
- Oviduct transfer protocols for reviving mouse lines from cryopreserved sperm.
Main Results:
- Sperm cryopreservation is cost-effective and requires fewer animals (two males) compared to embryo preservation.
- Addition of monothioglycerol to cryoprotectant significantly improves IVF rates in various mouse strains.
- The described protocol facilitates efficient storage and revival of genetically modified mouse lines.
Conclusions:
- Sperm cryopreservation, particularly with monothioglycerol enhancement, presents a superior method for archiving genetically modified mouse lines.
- This technique reduces the financial burden and time associated with preserving valuable genetic resources.
- The optimized protocol ensures reliable revival and distribution of mouse lines globally.
