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Comprehensive analysis of lumicrine secretory signal transduction through novel factor exploration

Research Project

Project/Area Number 21K19263
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 44:Biology at cellular to organismal levels, and related fields
Research InstitutionNagoya University (2023)
Osaka University (2021-2022)

Principal Investigator

Daiji Kiyozumi  名古屋大学, 環境医学研究所, 特任講師 (70452430)

Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsルミクリン / 精巣上体 / 分泌シグナル伝達 / モルフォジェン / 分泌蛋白質 / 内分泌 / 生殖路 / 細胞間相互作用 / 細胞外環境 / 分泌因子 / 管腔 / シグナル伝達 / NELL2
Outline of Research at the Start

公共データベースに蓄積されたトランスクリプトーム情報を解析する他、目的組織のトランスクリプトームを独自に解析し、分泌因子をコードする遺伝子を抽出する.さらにミュータントマウス情報を網羅しているマウスゲノムインフォマティックスを検索し、これまでにノックアウトされていない機能未知な遺伝子に絞り込む.これら候補遺伝子に対して、CRISPR/CAS9法によるゲノム編集によってノックアウトマウスを作製する.作製した遺伝子改変マウスの表現型を解析するこによって、当該因子がルミクリン因子として機能しているかを判定する.

Outline of Final Research Achievements

In multicellular organisms, secretory signal transduction plays an important role. In this study, we conducted a comprehensive analysis of a novel secretory signal transduction mechanism lumicrine, including the search for new factors. The results revealed the following points: The secretory protein NICOL forms a complex with NELL2 and functions as a ligand in lumicrine signal transduction.
The G protein-coupled receptor ADGRG2, expressed in the head of the epididymis, is not involved in the existing lumicrine signal transduction pathway mediated by NELL2/NICOL-ROS1.

Academic Significance and Societal Importance of the Research Achievements

これまでのルミクリン研究は現象を観察するものにとどまりがちであったが、本研究の結果、ルミクリンシグナル伝達機構の分子レベルでの特性が明らかになった。また、生殖路におけるルミクリンの作用機序およびその下流での遺伝子発現機序を明らかにしたことによって、男性不妊の原因解明や不妊治療、ルミクリンシグナル伝達を基盤とした新しい男性避妊薬の開発の可能性が示唆された。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (21 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (4 results) Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 7 results) Presentation (8 results) (of which Invited: 3 results) Remarks (1 results)

  • [Int'l Joint Research] ベイラー医科大学(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] テルアビブ大学(イスラエル)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] テルアビブ大学(イスラエル)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] ベイラー医科大学(米国)

    • Related Report
      2022 Research-status Report
  • [Journal Article] Expression of NELL2/NICOL-ROS1 lumicrine signaling-related molecules in the human male reproductive tract2024

    • Author(s)
      Kiyozumi Daiji
    • Journal Title

      Reproductive Biology and Endocrinology

      Volume: 22 Issue: 1

    • DOI

      10.1186/s12958-023-01175-6

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Busulfan administration replicated the characteristics of the epididymal initial segment observed in mice lacking testis-epididymis lumicrine signaling2024

    • Author(s)
      KIYOZUMI Daiji
    • Journal Title

      Journal of Reproduction and Development

      Volume: 70 Issue: 2 Pages: 104-114

    • DOI

      10.1262/jrd.2023-102

    • ISSN
      0916-8818, 1348-4400
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Distinct actions of testicular endocrine and lumicrine signaling on the proximal epididymal transcriptome2024

    • Author(s)
      Kiyozumi Daiji
    • Journal Title

      Reproductive Biology and Endocrinology

      Volume: 22 Issue: 1

    • DOI

      10.1186/s12958-024-01213-x

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A small secreted protein NICOL regulates lumicrine-mediated sperm maturation and male fertility2023

    • Author(s)
      Kiyozumi Daiji、Shimada Kentaro、Chalick Michael、Emori Chihiro、Kodani Mayo、Oura Seiya、Noda Taichi、Endo Tsutomu、Matzuk Martin M.、Wreschner Daniel H.、Ikawa Masahito
    • Journal Title

      Nature Communications

      Volume: 14 Issue: 1 Pages: 2354-2354

    • DOI

      10.1038/s41467-023-37984-x

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Adhesion G protein-coupled receptor G2 is dispensable for lumicrine signaling regulating epididymal initial segment differentiation and gene expression2023

    • Author(s)
      Kiyozumi Daiji、Ikawa Masahito
    • Journal Title

      Biology of Reproduction

      Volume: 109 Issue: 4 Pages: 474-481

    • DOI

      10.1093/biolre/ioad087

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] CRISPR/Cas9‐mediated genome editing reveals seven testis‐enriched transmembrane glycoproteins dispensable for male fertility in mice2023

    • Author(s)
      Ogawa Yo、Lu Yonggang、Kiyozumi Daiji、Chang Hsin‐Yi、Ikawa Masahito
    • Journal Title

      Andrology

      Volume: -

    • DOI

      10.1111/andr.13564

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Proteolysis in Reproduction: Lessons From Gene-Modified Organism Studies2022

    • Author(s)
      Kiyozumi Daiji、Ikawa Masahito
    • Journal Title

      Frontiers in Endocrinology

      Volume: 13 Pages: 876370-876370

    • DOI

      10.3389/fendo.2022.876370

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The molecular mechanisms of mammalian sperm maturation regulated by NELL2-ROS1 lumicrine signaling2022

    • Author(s)
      Kiyozumi Daiji
    • Journal Title

      The Journal of Biochemistry

      Volume: 172 Issue: 6 Pages: 341-346

    • DOI

      10.1093/jb/mvac071

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] 経管腔シグナル伝達ルミクリンによる精子成熟の制御2024

    • Author(s)
      淨住大慈
    • Organizer
      第4回有性生殖研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 経管腔シグナル伝達「ルミクリン」による 雄性生殖能力の制御2023

    • Author(s)
      淨住大慈
    • Organizer
      新学術研究領域研究 「全能性プログラム:デコーディングからデザインへ」 ウェビナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] ルミクリン:精子の成熟を制御する新しい分泌シグナル伝達2023

    • Author(s)
      淨住大慈
    • Organizer
      名古屋大学大学院理学研究科 アドバンス生命理学特論/GTR セミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] The molecular mechanisms of mammalian sperm maturation regulated by lumicrine signaling2023

    • Author(s)
      Kiyozumi Daiji
    • Organizer
      名古屋大学環境医学研究所環研カンファレンス
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 哺乳動物の雄性生殖路における分泌シグナル伝達ルミクリンの勾配形成2022

    • Author(s)
      淨住大慈
    • Organizer
      第69回日本実験動物学会総会
    • Related Report
      2022 Research-status Report
  • [Presentation] 精巣分泌因子Ts-1はルミクリンシグナル伝達を介した雄の妊孕性制御に必須である2022

    • Author(s)
      淨住大慈
    • Organizer
      第37回日本生殖免疫学会総会・学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] 精巣分泌因子Ts-1はルミクリンシグナル伝達を介した雄の妊孕性制御に必須である2021

    • Author(s)
      淨住大慈、島田健太郎、ダニエル・レシュナー、伊川正人
    • Organizer
      第53回日本結合組織学会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 哺乳動物の雄性生殖路における分泌シグナル伝達ルミクリンによる濃度勾配形成2021

    • Author(s)
      淨住大慈、伊川正人
    • Organizer
      第44回日本分子生物学会年会
    • Related Report
      2021 Research-status Report
  • [Remarks] researchmap

    • URL

      https://researchmap.jp/dkiyozumi

    • Related Report
      2023 Annual Research Report

URL: 

Published: 2021-07-13   Modified: 2025-01-30  

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