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Identification of novel causative genes and elucidation of mechanism in end-stage kidney disease using disease-specific iPS cells

Research Project

Project/Area Number 20K22897
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0902:General internal medicine and related fields
Research InstitutionKanazawa University

Principal Investigator

Yuta Yamamura  金沢大学, 附属病院, 医員 (40881058)

Project Period (FY) 2020-09-11 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsPAX2遺伝子 / 腎コロボーマ症候群 / 遺伝性腎疾患 / iPS細胞 / CAKUT
Outline of Research at the Start

本研究は、末期腎不全の約15%を占める原疾患不明の症例に焦点を当て、腎不全をきたす新規原因遺伝子の同定および機序解明を目的とする。腎発生に必須の転写因子で、遺伝性腎疾患 (腎コロボーマ症候群) およびCAKUT(Congenital Anomalies of the Kidney and Urinary Tract)の主要な原因遺伝子であるPAX2遺伝子に着目する。疾患特異的iPS細胞やCAGE法など最先端技術の融合した解析を行う事により、従来評価困難なヒト腎発生過程におけるPAX2遺伝子の転写制御ネットワークを明らかにし、原因不明の末期腎不全症例の新規原因遺伝子同定を行う。

Outline of Final Research Achievements

The aim of this study is to elucidate the cause and pathophysiology of end-stage kidney disease (ESKD). We focused on that 1) some ESKD patients with unknown etiology probably have genetic kidney diseases, and 2) PAX2-regulated genes may cause genetic kidney diseases.
We established disease specific iPSCs from renal coloboma syndrome patients with PAX2 mutation and identified PAX2-regulated genes during kidney development.These knowledges are useful for the identification of novel causative genes for genetic kidney diseases.

Academic Significance and Societal Importance of the Research Achievements

本研究で同定したPAX2制御遺伝子群の知見は、解析困難なヒト腎発生過程を、疾患特異的iPS細胞を用いて模倣することにより解析可能としており、学術的に意義の高い研究である。ヒト腎発生過程におけるPAX2遺伝子の意義を評価する上で重要な知見である。さらに、腎発生過程のみならず、PAX2遺伝子の関与が報告されている急性腎障害後の腎再生を考える上でも有用な知見となる可能性があり、今回の研究成果を基盤とした種々の研究進展が期待される。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (3 results)

All 2021 2020

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

  • [Journal Article] Identification of candidate PAX2-regulated genes implicated in human kidney development2021

    • Author(s)
      Yuta Yamamura, Kengo Furuichi, Yasuhiro Murakawa, Shigeki Hirabayashi, Masahito Yoshihara, Keisuke Sako, Shinji Kitajima, Tadashi Toyama, Yasunori Iwata, Norihiko Sakai, Kazuyoshi Hosomichi, Philip M Murphy, Atsushi Tajima, Keisuke Okita, Kenji Osafune, Shuichi Kaneko, Takashi Wada
    • Journal Title

      Scientific reports

      Volume: 11 Issue: 1 Pages: 9123-9123

    • DOI

      10.1038/s41598-021-88743-1

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 腎コロボーマ症候群特異的iPS細胞の遺伝子発現解析2021

    • Author(s)
      山村雄太、古市賢吾、岩田恭宜、坂井宣彦、和田隆志
    • Organizer
      第63回日本腎臓学会学術総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 腎コロボーマ症候群特異的iPS細胞の遺伝子発現解析2020

    • Author(s)
      山村雄太、古市賢吾、岩田恭宜、坂井宣彦、和田隆志
    • Organizer
      第63回日本腎臓学会学術総会
    • Related Report
      2020 Research-status Report

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Published: 2020-09-29   Modified: 2023-01-30  

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