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2018 Fiscal Year Annual Research Report

Establishment of a novel infertility treatment based on the technology of follicle activation

Research Project

Project/Area Number 16H05476
Research InstitutionInternational University of Health and Welfare

Principal Investigator

河村 和弘  国際医療福祉大学, 医学部, 教授 (10344756)

Co-Investigator(Kenkyū-buntansha) 佐藤 可野  国際医療福祉大学, 医学部, 助教 (00511073)
川島 一公  国際医療福祉大学, 医学部, 研究員 (40633946)
Project Period (FY) 2016-04-01 – 2019-03-31
Keywords生殖医学 / 早発閉経 / 卵巣機能不全 / 不妊治療 / 卵胞活性化
Outline of Annual Research Achievements

早発閉経や高齢による卵巣機能不全の不妊患者では、卵胞が発育せず自らの卵子を用いた妊娠は非常に困難である。申請者らは、PI3Kシグナル活性化とHippoシグナル抑制による卵胞活性化法を開発・臨床応用し、摘出した卵巣を体外で活性化した後、自家移植することで早発閉経患者の妊娠・出産に成功した。本研究は、現行の卵胞活性化法の臨床成績を向上しつつ、卵胞活性化法の適応を拡大するための新たな治療法の開発を試み、これらの患者が、自らの卵子で妊娠可能な治療法を確立することが目的である。本研究では以下の研究項目を計画している。
① 残存初期卵胞数を反映する新規血清マーカーの同定と測定系の開発、
② 移植卵巣の生存性の改善、
③ 卵巣移植カテーテルの開発、
④ Hippoシグナル抑制のみによる新たな卵胞活性化法の開発
本年度は① 残存初期卵胞数を反映する新規血清マーカーの同定と測定系の開発については、初期卵胞が分泌する候補因子に対して高感度のデジタルELISAを用いて測定する系を立ち上げた。②移植卵巣の生存性の改善には移植卵巣への血管新生が重要であり、そのために必要な内因性のVEGF産生を誘導する新たな方法を着想し、昨年度に動物試験でhCG投与によるVEGFの産生誘導と、それによる効果的な虚血防止が可能であることを見出し、移植卵巣の生存性が改善することを示した。本年度はこれを応用した下記の臨床試験を実施した。③初年度に完了。④ Hippoシグナル抑制のみによる新たな卵胞活性化法の開発について、昨年度に確立した新たな移植卵巣の生存性の改善方法を導入した上で、臨床試験に対する倫理委員会の承認を受けて試験を実施し、卵巣機能不全患者の発育卵胞数の増加に効果があり、妊娠率を高めることを示した。

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

  • Research Products

    (30 results)

All 2020 2019

All Journal Article (7 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (19 results) (of which Int'l Joint Research: 17 results,  Invited: 18 results) Book (4 results)

  • [Journal Article] Drug-free in-vitro activation of follicles for infertility treatment in poor ovarian response patients with decreased ovarian reserve2020

    • Author(s)
      Kawamura K, Ishizuka B, Hsueh AJW
    • Journal Title

      Reprod Biomed Online

      Volume: 40(2) Pages: 245~253

    • DOI

      10.1016/j.rbmo.2019.09.007

    • Peer Reviewed / Open Access
  • [Journal Article] Rapamycin treatment maintains developmental potential of oocytes in mice and follicle reserve in human cortical fragments grafted into immune-deficient mice2020

    • Author(s)
      Yorino Sato, Kawamura K
    • Journal Title

      Mol Cell Endocrinol

      Volume: 504 Pages: 110694

    • DOI

      10.1016/j.mce.2019

    • Peer Reviewed / Open Access
  • [Journal Article] Distinctive subpopulations of the intestinal microbiota are present in women with unexplained chronic anovulation.2019

    • Author(s)
      Sasaki H, Kawamura K, Kawamura T, Odamaki T, Katsumata N, Xiao JZ, Suzuki N, Tanaka M
    • Journal Title

      Reprod Biomed Online

      Volume: 38(4) Pages: 570~578

    • DOI

      10.1016/j.rbmo.2018.12.026

    • Peer Reviewed / Open Access
  • [Journal Article] Decreased effector regulatory T cells and increased activated CD4+ T cells in premature ovarian insufficency2019

    • Author(s)
      Kobayashi M, Nakashima A, Yoshino O, Yoshie M, Ishijima A, Ito M, Ono Y, Shima T, Kawamura K, Ishizuka B, Saito S
    • Journal Title

      Am J Reprod Immunol

      Volume: 81(6) Pages: 13125

    • DOI

      10.1111/aji.13125

    • Peer Reviewed
  • [Journal Article] 卵胞活性化による新しい不妊治療2019

    • Author(s)
      河村和弘・河村七美
    • Journal Title

      月刊細胞

      Volume: Vol.51 No.5 Pages: 17-20

  • [Journal Article] 卵胞の活性化2019

    • Author(s)
      河村和弘・河村七美
    • Journal Title

      HORMONE FRONTIER IN GYNECOLOGY

      Volume: Vol. 26 No.2 Pages: 41(113)-45(117)

  • [Journal Article] 不妊治療におけるプレシジョンメディシンの展開2019

    • Author(s)
      河村和弘
    • Journal Title

      Precision Medecine

      Volume: Vol.2 No.14 Pages: 8(1326)-9(1327)

  • [Presentation] Drug Free In-vitro Activation for Diminished Ovarian Reserve in State of the Art in 2020 of In Vitro Activation2020

    • Author(s)
      Kawamura K
    • Organizer
      8th ASPIRE Masterclass
    • Int'l Joint Research / Invited
  • [Presentation] Drug-free in vitro activation for diminished ovarian reserve2020

    • Author(s)
      Kawamura K
    • Organizer
      The 5 th symposium of MFI
    • Int'l Joint Research / Invited
  • [Presentation] Disinctive subpopulations of the intestinal microbiota are present in women with unexplained chronic novulation2019

    • Author(s)
      Sasaki H, Kawamura K,Jinno Y, Kobanawa M,Nakagawa R,Iwai M,Kamijo S,Yamada M,Hamatani T,Suzuki N,Tanaka M,Aoki D
    • Organizer
      第71回日本産科婦人科学会学術講演会
  • [Presentation] Precongress course of 8th International Congress of the Jordanian Society for Fertility2019

    • Author(s)
      Kawamura K
    • Organizer
      8th International PreCongress of the Jordanian Society for Fertility
    • Int'l Joint Research / Invited
  • [Presentation] In Vitro activation : Development of novel infertility treatment for ovarian dysfunction"2019

    • Author(s)
      Kawamura K
    • Organizer
      8th International Congress of the Jordanian Society for Fertility
    • Int'l Joint Research / Invited
  • [Presentation] Role of smoking in infertile women with ovarian dysfunction2019

    • Author(s)
      Kawamura K
    • Organizer
      8th International Congress of the Jordanian Society for Fertility
    • Int'l Joint Research / Invited
  • [Presentation] IVA: What is New?2019

    • Author(s)
      Kawamura K
    • Organizer
      The 9th Congress of the Asia Pacific Initiative on Reproduction
    • Int'l Joint Research / Invited
  • [Presentation] In vitro activation : new infertility treatments in patients with Primary Ovarian Insufficiency (POI)2019

    • Author(s)
      Kawamura K
    • Organizer
      Scientific and practical conference : New ever news in Reproductive Technology
    • Int'l Joint Research / Invited
  • [Presentation] In vitro activation for infertility treatment of ovarian2019

    • Author(s)
      Kawamura K
    • Organizer
      the XXXII International Congress with Endoscopic Course
    • Int'l Joint Research / Invited
  • [Presentation] Ovarian Activation as Treatment of Premature Ovarian Failure2019

    • Author(s)
      Kawamura K
    • Organizer
      The 2019 Midwest Reproductive Symposium international
    • Int'l Joint Research / Invited
  • [Presentation] 加齢による卵巣機能不全の早期診断・治療のための新たなバイオマーカー2019

    • Author(s)
      河村和弘
    • Organizer
      第19回日本抗加齢医学会総会
    • Invited
  • [Presentation] Development of In vitro activation (IVA) as a treatment for premature ovarian insufficiency Drug-free IVA as a new treatment for ovarian dysfunction2019

    • Author(s)
      Kawamura K
    • Organizer
      XVII Conference of Armenian Society for Reproductive Medicine
    • Int'l Joint Research / Invited
  • [Presentation] In-vitro Activation of Follicles in Reduced Ovarian Reserve2019

    • Author(s)
      Kawamura K
    • Organizer
      27th International Congress of the Obstetrical & Gynaecological Society of Malaysia
    • Int'l Joint Research / Invited
  • [Presentation] Options in Reduced Ovarian Reserve; What Works and What Doesn’t?2019

    • Author(s)
      Kawamura K
    • Organizer
      27th International Congress of the Obstetrical & Gynaecological Society of Malaysia
    • Int'l Joint Research / Invited
  • [Presentation] In Vitro Activation: New Infertility Treatments in Patients with Primary Ovarian Insufficiency2019

    • Author(s)
      Kawamura K
    • Organizer
      XXIX ежегодной международной
    • Int'l Joint Research / Invited
  • [Presentation] In vitro activation for treatment of ovarian dysfunction, current and future2019

    • Author(s)
      Kawamura K
    • Organizer
      "XXIX ежегодной международной
    • Int'l Joint Research / Invited
  • [Presentation] Children after in vitro activation of ovarian follicles2019

    • Author(s)
      Kawamura K
    • Organizer
      NOVELTIES IN THE IN VITRO FERTILIZATION LAB: WHERE WE ARE AND WHERE
    • Int'l Joint Research / Invited
  • [Presentation] A challenge for in vitro follicle development in human2019

    • Author(s)
      Kawamura K
    • Organizer
      DIPARTIMENTO DI BIOLOGIA Università degli Studi di NAPOLI Federico II
    • Int'l Joint Research / Invited
  • [Presentation] In vitro activation (IVA) for treatment of ovarian dysfunction: Current and Future2019

    • Author(s)
      Kawamura K
    • Organizer
      Nankai China-Japan Gynecology Specialist Workshop 2019
    • Int'l Joint Research / Invited
  • [Book] Textbook of Oncofertility Research and Practice2019

    • Author(s)
      Iwahata H, Takae S, Kawamura K, Suzuki N
    • Total Pages
      4
    • Publisher
      Springer
    • ISBN
      978-3030028671
  • [Book] 今すぐ知りたい! 不妊治療Q&A2019

    • Author(s)
      河村和弘
    • Total Pages
      2
    • Publisher
      医学書院
    • ISBN
      978-4-260-03826-3
  • [Book] 産科婦人科臨床 生殖生理2019

    • Author(s)
      河村和弘
    • Total Pages
      10
    • Publisher
      中山書店
    • ISBN
      978-4-521-74761-3
  • [Book] 不妊症・不育症診療 : その伝承とエビデンス2019

    • Author(s)
      河村和弘
    • Total Pages
      7
    • Publisher
      中外医学社
    • ISBN
      978-4-498-16000-2

URL: 

Published: 2021-01-27  

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