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논문 기본 정보

자료유형
학술대회자료
저자정보
Lim, Jung-Jin (Department of Life Science, College of Natural Sciences, Hanyang University) Shin, Hyun-Sang (Department of Life Science, College of Natural Sciences, Hanyang University) Lee, Ji-Won (Department of Life Science, College of Natural Sciences, Hanyang University) Kang, Sue-Man (Department of Life Science, College of Natural Sciences, Hanyang University) Lee, Sung-Eun (Department of Life Science, College of Natural Sciences, Hanyang University) Kang, Han-Seung (Department of Life Science, College of Natural Sciences, Hanyang University) Kim, Moon-Kyoo (Department of Life Science, College of Natural Sciences, Hanyang University)
저널정보
한국동물번식학회 한국수정란이식학회 심포지움 한국수정란이식학회 2002년도 국제심포지엄
발행연도
2002.1
수록면
102 - 102 (1page)

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Heparin-bindin epidermal growth factor (HB-EGF) is one of the EGF family to be expressed at the time of implantation in the mouse uterus. Although HB-EGF has been shown to stimulate the development of embryo and uterus in the mouse, its correlation between cell adhesion molecules remains undefined. Integrin $\alpha$$_{ν}$$\beta$$_3$, one of the cell adhesion molecules, is an important mediator of cell-substratum and cell-cell adhesion in implantation. In the present studies, we investigated the effects of HB-EGF on the embryonic development, initiation of implantation and expression of integrin $\alpha$$_{ν}$$\beta$$_3$ in in vitro culture, blocking of HB-EGF, RT-PCR and immunofluores cence analysis. The results showed that HB-EGF significantly improved the developmental rate of hatched embryos (24.1%, p<0.01) and outgrowth embryos (42.5%, p<0.01). On the other hand, this growth factor showed no offset before the hatching embryonic stage. Analysis of RT-PCR showed that HB-EGF upregulated the expression level of integrina $\alpha$$_{ν}$$\beta$$_3$ subunit genes on the preimplantation embryo and outgrowth of blastocyst (120hr and 144hr after hCG injection). Immunofluorescence analysis showed that the integrin $\alpha$$_{ν}$$\beta$$_3$ subunits localized at the pericellular borders and cell-cell contact areas. Increase in fluorescence intensity was observed in the HB-EGF treated embryos. Intrauterine injection of an anti-HB-EGF antiserum at day 3 significantly decreased the number of implantation sites (14.4, p<0.01) and significantly increased the number of recovered embryos(6.4, p<0.05) at day 5. From these results, it imply that HB-EGF improve the embryo development and accelerated the expression of integrin $\alpha$$_{ν}$$\beta$$_3$ in the preimplantation mouse embryos.

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