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Nuclear Transfer Improves the Developmental Potential of Embryos Derived from Cytoplasmic Deficient Oocytes

Overview
Journal iScience
Publisher Cell Press
Date 2023 Jul 31
PMID 37520712
Authors
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Abstract

Embryo development after fertilization is largely determined by the oocyte quality, which is in turn dependent on the competence of both the cytoplasm and nucleus. Here, to improve the efficiency of embryo development from developmentally incompetent oocytes, we performed spindle-chromosome complex transfer (ST) between matured (IVM) and matured (IVO) oocytes of the non-human primate rhesus monkey. We observed that the blastocyst rate of embryos derived from transferring the spindle-chromosome complex (SCC) of IVM oocytes into enucleated IVO oocytes was comparable with that of embryos derived from IVO oocytes. After transferring the reconstructed embryos into the uterus of surrogate mothers, two live rhesus monkeys were obtained, indicating that the nuclei of IVM oocytes support both the pre-and post-implantation embryo development of non-human primates.

Citing Articles

Cumulus cell DNA damage linked to fertilization success in females with an ovulatory dysfunction phenotype.

Rodrigues B, Sousa V, Esteves F, Vale-Fernandes E, Costa S, Sousa D Front Cell Dev Biol. 2024; 12:1448733.

PMID: 39605981 PMC: 11599247. DOI: 10.3389/fcell.2024.1448733.

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