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川上 雅弘 所属 京都産業大学 生命科学部 産業生命科学科 職種 准教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2005 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Maintenance of meiotic arrest and developmental potential of porcine oocytes after parthenogenetic activation and somatic cell nuclear transfer |
| 執筆形態 | その他 |
| 掲載誌名 | Cloning and Stem Cells |
| 掲載区分 | 国外 |
| 出版社・発行元 | 3 |
| 巻・号・頁 | 7(3),pp.167-177 |
| 著者・共著者 | Masahiro Kawakami,Yoko Kato,Yukio Tsunoda |
| 概要 | Several studies report that meiotic maturation of porcine oocytes can be reversibly preserved. The present study examined how long meiotic maturation can be suppressed. The first experiment determined the preservation medium suitable for reversibly suppressing meiotic maturation of porcine oocytes. The second experiment examined the in vitro developmental potential of oocytes maintained in meiotic arrest after parthenogenetic activation and nuclear transfer of somatic cells. Preservation of cumulus-oocyte complexes with NCSU-37 medium containing 10% follicular fluid, 1 mM dibutyryl cyclic AMP, and follicular shell pieces for 24-96 h at 39°C did not affect oocyte maturation compared with controls (94-98% vs. 98%). The potential of parthenogenetically activated and nuclear-transferred oocytes maintained in meiotic arrest for 24-48 h to develop into blastocysts was not significantly different from that of controls (20-25% vs. 18% and 8-11% vs. 9%, respectively). The present study demonstrated that meiotic maturation of porcine oocytes can be suppressed after preservation for 48 h at 39°C without decreasing oocyte maturation competence or the ability of oocytes to develop to at least the blastocyst stage. © Mary Ann Liebert, Inc. |
| DOI | 10.1089/clo.2005.7.167 |
| ISSN | 1536-2302 |
| PMID | 16176126 |