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A method for enucleating oocytes of Xenopus laevis
Journal of Embryology and Experimental Morphology
|February 1, 1977
Summary
This study presents a novel method for enucleating Xenopus oocytes, enabling them to heal and support RNA synthesis for multiple days. This technique offers a valuable low-background system for studying nuclear transcription.
Area of Science:
- Developmental Biology
- Molecular Biology
- Cell Biology
Background:
- Xenopus oocytes are widely used model organisms in biological research.
- Studying nuclear transcription requires a stable and low-background experimental system.
Purpose of the Study:
- To develop a method for enucleating Xenopus oocytes that allows for complete healing.
- To enable enucleated oocytes to withstand multiple injections and prolonged culture.
- To establish a reliable system for studying RNA synthesis in injected nuclei.
Main Methods:
- Manual defolliculation and enucleation of Xenopus oocytes.
- Healing of enucleated oocytes in a potassium phosphate buffer.
- Assessment of RNA synthesis by injected HeLa-cell nuclei in enucleated oocytes.
Main Results:
- Enucleated Xenopus oocytes healed completely and supported multiple injections.
- Oocytes remained viable for several days post-enucleation.
- Injected HeLa-cell nuclei demonstrated RNA synthesis in the enucleated oocytes after 3 days.
Conclusions:
- The described enucleation and healing method provides a robust, low-background system.
- This technique is valuable for investigating nuclear transcription processes.
- The method enhances the utility of Xenopus oocytes in molecular and developmental biology studies.