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Studies on the physiological role of aquaporin-11 and molecular mechanism of cyst formation in aquaporin-11-deleted mice.

Research Project

Project/Area Number 18K06816
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 48010:Anatomy-related
Research InstitutionGunma University

Principal Investigator

Toshiyuki Matsuzaki  群馬大学, 大学院医学系研究科, 教授 (30334113)

Co-Investigator(Kenkyū-buntansha) 向後 寛  群馬大学, 大学院医学系研究科, 講師 (20282387)
向後 晶子  群馬大学, 大学院医学系研究科, 講師 (20340242)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsアクアポリン11 / 腎嚢胞 / 精巣 / 小腸 / ノックアウトマウス / 免疫組織化学 / in situハイブリダイゼーション / 精子 / 精子特異的ノックアウト / 尿細管
Outline of Final Research Achievements

To clarify the physiological role of aquaporin-11 (AQP11), we developed spermatocyte-specific AQP11-knokout mice and analyzed them. There was no obvious change in fertility as well as histology of testes in knockout male mice compared to those in wild mice. However, we noticed that AQP11 mRNA and protein was present in spermatocytes because of the time when AQP11 gene was deleted was late.
We tried to make monoclonal anti-AQP11 antibody to clarify the ultrastructural localization of AQP11; however, we could not succeed it.
On the other hand, we clarified the expression of AQP11 in enterocytes of small intestines by in situ hybridization using RNAscope technology and immunohistochemistry.

Academic Significance and Societal Importance of the Research Achievements

AQP11ノックアウトマウスでは腎臓に嚢胞を多数形成し、死に至ることからAQP11は腎臓で重要なはたらきをしていると考えられる。AQP11は腎臓以外に、例えば精巣にも発現している。そこでマウス精巣のAQP11を特異的に破壊して、精巣での役割を明らかにしようと試みたが、作製したマウスでは遺伝子の破壊次期が遅かったために、AQP11が破壊しきれなかった。より早い時期にAQP11遺伝子を破壊できるマウスを作製する必要があることがわかった。また、腎臓、精巣以外に小腸上皮細胞にもAQP11が発現することを明らかにできたので、今後遺伝子破壊などによって小腸でのAQP11の機能を解析することができる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (8 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (4 results) (of which Invited: 3 results)

  • [Journal Article] 水チャネルの分布と機能2021

    • Author(s)
      松崎利行、高田邦昭
    • Journal Title

      脳神経内科

      Volume: 94 Pages: 607-614

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Characterization of the circadian oscillator in the choroid plexus of rats2020

    • Author(s)
      Yamaguchi Takeshi、Hamada Toshiyuki、Matsuzaki Toshiyuki、Iijima Norio
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 524 Issue: 2 Pages: 497-501

    • DOI

      10.1016/j.bbrc.2020.01.125

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multi-color immunofluorescence microscopy in cultured cells2019

    • Author(s)
      松崎利行
    • Journal Title

      Folia Pharmacologica Japonica

      Volume: 154 Issue: 4 Pages: 165-170

    • DOI

      10.1254/fpj.154.165

    • NAID

      130007726229

    • ISSN
      0015-5691, 1347-8397
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] A bell‐shaped pattern of urinary aquaporin‐2‐bearing extracellular vesicle release in an experimental model of nephronophthisis2019

    • Author(s)
      Mikoda Nobuyuki、Sonoda Hiroko、Oshikawa Sayaka、Hoshino Yuya、Matsuzaki Toshiyuki、Ikeda Masahiro
    • Journal Title

      Physiological Reports

      Volume: 7 Issue: 9 Pages: e14092-e14092

    • DOI

      10.14814/phy2.14092

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Expression and localization of AQP11 mRNA in the mouse testis.2021

    • Author(s)
      Maiko Ikezawa, Hiroshi Kogo, Akiko Kogo, Kenichi Ishibashi, Toshiyuki Matsuzaki
    • Organizer
      第126回 日本解剖学会総会・全国学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 蛍光抗体法の基礎と応用2020

    • Author(s)
      松崎利行
    • Organizer
      第45回組織細胞化学講習会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 蛍光抗体法の基礎と実際2019

    • Author(s)
      松崎利行
    • Organizer
      第44回組織細胞化学講習会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] ペプチド抗体と免疫組織化学2019

    • Author(s)
      松崎利行、高田邦昭
    • Organizer
      第60回日本組織細胞化学会総会・学術集会
    • Related Report
      2019 Research-status Report
    • Invited

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Published: 2018-04-23   Modified: 2022-01-27  

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