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Volume 50, Number 4 >

Effects of cycloheximide treatment on in-vitro development of porcine parthenotes and somatic cell nuclear transfer embryos

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Please use this identifier to cite or link to this item:http://doi.org/10.14943/jjvr.50.4.147

Title: Effects of cycloheximide treatment on in-vitro development of porcine parthenotes and somatic cell nuclear transfer embryos
Authors: Diaz, Mario A. Martinez Browse this author
Suzuki, Masami Browse this author
Kagawa, Masumi Browse this author
Ikeda, Koji Browse this author
Takahashi, Yoshiyuki Browse this author →KAKEN DB
Keywords: activation; cloning
cycloheximide
nuclear transplantation
pig
Issue Date: 28-Feb-2003
Publisher: The Graduate School of Veterinary Medicine
Journal Title: Japanese Journal of Veterinary Research
Volume: 50
Issue: 4
Start Page: 147
End Page: 155
Abstract: This study aimed to verify the beneficial effect of cycloheximide (CHX) treatment on the development of porcine somatic cell nuclear transfer (NT) embryos, which were constructed with enucleated oocytes and cumulus cells by using a single direct current (DC) pulse. In the first experiment, a single DC pulse applied to the induction of fusion and activation of NT embryos gave a high fusion rate. However, cleavage and subsequent development of fused couplets (NT embryos) to the blastocyst stage were poor. Experiment 2 was conducted to determine whether CHX treatment could enhance metaphase II (M II) oocyte activation and improve the subsequent parthenogenetic development. After giving the DC pulse and incubation with or without CHX, M II oocytes incubated with CHX showed higher cleavage and development to blastocysts compared with those incubated without CHX (P <0.05). Experiment 3 was carried out to verify the beneficial effect of CHX on the development of NT embryos. The NT embryos treated with the DC pulse and CHX treatment showed higher cleavage and subsequent development compared with those treated with the DC pulse alone (P <0.05). The present study demonstrates that CHX treatment enhances the electrical stimulus-induced activation of oocytes and NT embryos, and improves the subsequent development of parthenotes and NT embryos. The results indicate that protein synthesis inhibition treatment required for the induction of oocyte activation promotes the development of NT embryos.
Type: bulletin (article)
URI: http://hdl.handle.net/2115/2962
Appears in Collections:Japanese Journal of Veterinary Research > Volume 50, Number 4

Submitter: 獣医学部図書室

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