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The difference of the adhesion molecule system between blastocyst implantation and cancer invasion

Research Project

Project/Area Number 12671617
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Obstetrics and gynecology
Research InstitutionKagoshima University

Principal Investigator

OKI Toshimichi  Kagoshima University, University Hospital, Faculty of Medicine, Assistant Professor, 医学部附属病院, 講師 (60253879)

Co-Investigator(Kenkyū-buntansha) NAGATA Yukihiro  Kagoshima University, President, 学長 (30038806)
DOUCHI Tsutomu  Kagoshima University, Graduate school of Medicine and Dental Sciences, Associated professor, 大学院・医歯学総合研究科, 助教授 (60150413)
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2002: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2001: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2000: ¥1,300,000 (Direct Cost: ¥1,300,000)
Keywordsblastocyst / implantation / Adhesion molecule / Embryo biopsy / 胚生核
Research Abstract

Methods. 4-cell stage embryos were collected from superovulated and mated ICR female mice with oviduct flushing method. Embryos were incubated until expanded blastocyst stage. Subjects were classified into subgroups according to the position of blastomere biopsy as following, Group A; around the 180° direction, Group B; around the 90° direction from the inner cell mass (ICM), Group C; near ICM. Few blastomeres were biopsied with the "slit" method. These blastomeres were immunohistochemically stained using anti-α5β3, anti-α6β4 integrin and anti-α5β1 integrin antibody. Moreover, these blastocysts were incubated on culture dish for 72 hours after biopsy. The spreading areas of these blastocysts were measured, and were compared between α5β3/α6β4 integrin positive and negative one. Results Expression of α5β3 integrin and α6β4 integrin was seen in Group A and B, but was not in Group C. Expression of α5β3 integrin was not observed in any groups. The spreading area of α5β3/α6β4 integrin positive blastocyst is larger than that of negative one.
Conclusions. From these results, we conclude that expression of α5β3 and α6β4 integrin on biopsied blastomeres is closely associated with blastocyst spreading activity.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] Oki T, Kuwahata R, Nakae M, Yamazaki H, Douchi T, Nagata Y: "BLASTOCYST BIOPSY AND IMMUNOHISTOCHEMICAL ANALYSIS FOR ADHESION MOLECULE IN MICE"Proceedings of 17th World Congress in Fertility and Sterility. 191 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kuwahata R, Oki T, Nakae M, Yamazaki H, Douchi T, Nagata Y: "THE EFFECT OF AGING ON BLASTOCYST HATCHING PROCESS IN HUMAN IVF-ET"Proceedings of 17th World Congress in Fertility and Sterility. 172 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Oki T, Douchi T, Maruta K, Nakamura S, Nagata Y: "Changes in endometrial wave-like movements in accordance with the phases of menstrual cycle"J Obstet Gynaecol Research. 28(3). 176-181 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 沖 利通, 永田行博: "胎児の成長・発達 I 発生学 A.受精卵"新女性医学体系. 29. 3-12 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 沖 利通, 永田行博: "Embryo biopsyの実際"ARTスタッフマニュアル体外受精から顕微授精まで. 184-186 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Oki T, Kuwahata R, Nakae M, Yamazaki H, Douchi T, Nagata Y: "BLASTCYST BIOPSY AND IMMUNOHISTOCHEMICAL ANALYSIS FOR ADHESION MOLECULE IN MICE"Proceedings of 17th World Congress in Fertility and Sterility. 191 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kuwahata R, Oki T, Nakae M, Yamazaki H, Douchi T, Nagata Y: "THE EFFECT OF AGING ON BLASTOCYST HATCHING PROCESS IN HUMAN IVF-ET"Proceedings of 17th World Congress in Fertility and Sterility. 172 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Oki T, Douchi T, Maruta K, Nakamura S, Nagata Y: "Changes in endometrial wave-like movements in accordance with the phases of menstrual cycle"J Obstet Gynaecol Research. 28(3). 176-181 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Oki T, Nagata Y: "The Growth and Development of Fetus I Embryology A. fertilized ovam"Shin-joseigaku taikei. 29. 3-12 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Oki T, Nagata Y: "The technique of the embryo biopsy"ART staff manual. 184-186 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Oki T, Kuwahata R, Nakae lvi, Yamazak Hi, Douchi T, Nagata Y: "BLASTOCYST BIOPSY AND IMMUNOHISTOCHEMICAL ANALYSIS FOR ADHESION MOLECULE IN MICE"Proceedings of 17th World Congressin Fertility and Sterlity. 191 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kuwahata R, Ok i T, Nakae M, Yamazak Hi, Douchi T, Nagata Y: "THE EFFECT OF AGING ON BLASTOCYST HATCHING PROCESS IN HUMAN IVF-ET"Proceedings of 17th World Congressin Fertility and Sterlity. 172 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Oki T, Douchi T, Maruta K, Nakamura S, Nagata Y: "Changes in endometrial wave-like movements in accordance with the phases of menstrual cycle"J Obstet Gynaecol Research. 28(3). 176-181 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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