| Project/Area Number |
10556059
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| Research Category |
Grant-in-Aid for Scientific Research (B).
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
Applied animal science
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| Research Institution | Tohoku University |
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Principal Investigator |
SATO Eimei Tohoku Uinv. School of Agri. Sci., Prof., 大学院・農学研究科, 教授 (80093243)
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| Co-Investigator(Kenkyū-buntansha) |
SASADA Hiroshi Tohoku Univ., School of Agri. Sci., Assistant Prof., 大学院・農学研究科, 助手 (90158931)
KASHIWAZAKI Naoki Azabu Univ., Faculty of Vet. Sci., Associate Prof., 獣医学部, 講師 (90298232)
梅津 元昭 東北大学, 大学院・農学研究科, 助教授 (30005649)
星 宏良 株式会社 機能性ペプチド研究所, 所長(研究職)
舘 鄰 麻布大学, 獣医学部, 教授 (30011711)
松本 浩道 東北大学, 大学院・農学研究科, 助手 (70241552)
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| Project Period (FY) |
1998 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥12,600,000 (Direct Cost: ¥12,600,000)
Fiscal Year 2000: ¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 1999: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 1998: ¥7,000,000 (Direct Cost: ¥7,000,000)
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| Keywords | ES cells / nuclear transfer / embryo-derived cells / GFP / transgenic pigs / xenotransplantation / gene-knockout / somatic cell-clone / 遺伝子改革ブタ / 胚性幹細胞 / 卵子 / GFP発現細胞 / 胚移植 / ブタ / 異種移植 / 遺伝子ノックアウトブタ / 発生工学 |
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| Research Abstract |
1) Basic technoloeies for the production of transgenic pigs, such as in vitro maturation and fertilization and culture of oocytes, nuclear transfer, freezing of embryos, embryo transfer, have been established.
2) mitosen-activated protein kinase (MAPK) mediates the maturation-inducing signal from the cytoplasm into nucleus and induces meiosis reinitiation in porcine oocytes.
3) The effect of hyaluronic acid on the development of in vitro-produced porcine embryos varies with the condition of oocyte maturation and fertilization.
4) A porcine cell line can be established from the hatched blastocyst and maintained in vitro for a long period, and that reconstructed embryos obtained by transferring the blastocyst-derived cells into enucleated oocytes have the ability to develop to the blastocyst stage in vitro.
5) Vector including a gene encoding green fluorescent protein (GFP gene) was developed, and techniques for selection of the cells with GFP gene was established .
6) Techniques of nuclear transfer of the cells with GFP gene into enucleated oocytes was established.
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