The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Injected nuclei in frog oocytes: fate, enlargement, and chromatin dispersal
Abstract
A method is described by which nuclei associated with some cytoplasm can be rapidly prepared from a suspension of cells. The method involves the use of lysolecithin and bovine serum albumin. Oocytes of Xenopus laevis were injected with about 200 nuclei prepared from human HeLa cells by this method. Nuclei were deposited in oocyte cytoplasm, in the oocyte nucleus, or in the dispersed contents of a ruptured oocyte nucleus. Injected HeLa nuclei enlarge up to several hundred times in volume in the course of a few days. Their enlargement is associated with chromatin dispersion, increased binding of an acidic dye, and with the reduction in size, and eventual disappearance, of nucleoli. The amount of HeLa nucleus enlargement is much greater when the oocyte nucleus is ruptured. The fate of injected nuclei was followed by the use of HeLa nuclei whose DNA had been previously labelled with [3 H]thymidine. Labelled DNA does not pass from injected HeLa nuclei into the oocyte nucleus. Injected nuclei appear not to fuse with each other or with the oocyte nucleus. Nuclei prepared by the above method look morphologically healthy in oocytes cultured in vitro for up to one month after nuclear injection. Nuclei prepared by other methods, such as those involving the use of detergents, undergo deterioration within a few days after injection into oocytes.
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Citations
Cites
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Metadata
- Authors
- Gurdon, J. B.
- Venue
- Development
- Publisher
- The Company of Biologists
- Published
- 1976-12-01
- Volume
- 36
- Issue
- 3
- Pages
- 523-540
- ISSN
- 0950-1991 (ISSN-L)
- 1477-9129
- OpenAlex
- W1902724244
- Cited by
- 299
- References
- 1
- FWCI
- 3.71
- Type
- journal article
- Language
- en
- Open access
- closed
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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