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Contribution of aberrant splicing to the onset mechanisms in inherited kidney diseases

Research Project

Project/Area Number 19K08726
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53040:Nephrology-related
Research InstitutionKobe University

Principal Investigator

Kandai Nozu  神戸大学, 医学研究科, 教授 (70362796)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordssplicing / 核酸医薬 / アンチセンスオリゴ / minigene / RNA sequence / アンチセンス治療薬
Outline of Research at the Start

1.スプライシング異常をきたしうる変異の同定およびその頻度の解明を行う:保有する遺伝情報の中から、イントロン変異やサイレント変異およびその病原性が不明なミスセンス変異の中でスプライシング異常の可能性がある変異を検出し、スプライシング異常の頻度およびその重症度への影響を明らかにする。2.スプライシング異常発症機序の解明を行う: minigeneや患者腎由来培養細胞を用いた解析系を用いて、スプライシング促進因子の発現調節を行い、その影響を調べることでスプライシング異常発生機序を解明する。3.新規疾患特異的治療法の開発を行う:すべての遺伝性腎疾患を対象とした治療法の開発を行う。

Outline of Final Research Achievements

We have investigated in vitro, in vivo, and clinical viewpoints that splicing abnormalities in the pathogenesis mechanism and severity of various hereditary renal diseases are greatly involved. As a result, the substitution of the last base of the exon, which has been interpreted as a missense variant, causes a splicing abnormality, and as a result, the analysis of the genotype-phenotype correlation has been conducted based on incorrect information. It was also clarified that some hereditary renal diseases can be treated by controlling splicing. We have succeeded in finding a lot of important information that will lead to the development of therapeutic methods using nucleic acid drugs.

Academic Significance and Societal Importance of the Research Achievements

これまで遺伝性腎疾患においてスプライシング異常の関与はほとんど検討されてきていなかったが、今回の研究から遺伝子の1塩基置換であってもその結果、ミスセンス変異ではなくスプライシング異常を来すことにより病気を発症していることが多々あることが証明できた。一般的にミスセンス変異は軽症、スプライシング異常を来す変異は重症の臨床像を呈することが多いが、ミスセンス変異と解釈することにより、誤った臨床的重症度評価をする可能性がある。本研究成果はそれに対する警鐘を鳴らす物となった。また、スプライシングを正しく理解することでスプライシングを制御による治療法の開発へとつながることも本研究で示すことができた。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (37 results)

All 2022 2021 2020 2019 2018

All Journal Article (24 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 24 results,  Open Access: 21 results) Presentation (13 results) (of which Int'l Joint Research: 7 results,  Invited: 13 results)

  • [Journal Article] The Contribution of COL4A5 Splicing Variants to the Pathogenesis of X-Linked Alport Syndrome2022

    • Author(s)
      Yamamura Tomohiko、Horinouchi Tomoko、Aoto Yuya、Lennon Rachel、Nozu Kandai
    • Journal Title

      Frontiers in Medicine

      Volume: 9

    • DOI

      10.3389/fmed.2022.841391

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Clinical features of autosomal recessive polycystic kidney disease in the Japanese population and analysis of splicing in PKHD1 gene for determination of phenotypes2022

    • Author(s)
      Ishiko S, Morisada N, Kondo A, Nagai S, Aoto Y, Okada E, Rossanti R, Sakakibara N, Nagano C, Horinouchi T, Yamamura T, Ninchoji T, Kaito H, Hamada R, Shima Y, Nakanishi K, Matsuo M, Iijima K, Nozu K.
    • Journal Title

      Clin Exp Nephrol .

      Volume: 26 Issue: 2 Pages: 140-153

    • DOI

      10.1007/s10157-021-02135-3

    • NAID

      120007188940

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Clear Evidence of <i>LAMA5</i> Gene Biallelic Truncating Variants Causing Infantile Nephrotic Syndrome2021

    • Author(s)
      Taniguchi Yukimasa、Nagano China、Sekiguchi Kiyotoshi、Tashiro Atsushi、Sugawara Noriko、Sakaguchi Haruhide、Umeda Chisato、Aoto Yuya、Ishiko Shinya、Rossanti Rini、Sakakibara Nana、Horinouchi Tomoko、Yamamura Tomohiko、Kondo Atsushi、Nagai Sadayuki、Nagase Hiroaki、Iijima Kazumoto、Miner Jeffrey H.、Nozu Kandai
    • Journal Title

      Kidney360

      Volume: 2 Issue: 12 Pages: 1968-1978

    • DOI

      10.34067/kid.0004952021

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Last Nucleotide Substitutions of COL4A5 Exons Cause Aberrant Splicing2021

    • Author(s)
      Aoto Y, Horinouchi T, Yamamura T, Kondo A, Nagai S, Ishiko S, Okada E, Rossanti R, Sakakibara N, Nagano C, Awano H, Nagase H, Shima Y, Nakanishi K, Matsuo M, Iijima K, Nozu K.
    • Journal Title

      Kidney Int Rep.

      Volume: 7 Issue: 1 Pages: 108-116

    • DOI

      10.1016/j.ekir.2021.10.012

    • NAID

      120007188929

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A disease-causing variant of COL4A5 in a Chinese family with Alport syndrome: a case series2021

    • Author(s)
      Wu Jing、Zhang Jun、Liu Li、Zhang Bo、Yamamura Tomohiko、Nozu Kandai、Matsuo Masafumi、Zhao Jinghong
    • Journal Title

      BMC Nephrology

      Volume: 22 Issue: 1

    • DOI

      10.1186/s12882-021-02585-7

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Systematic Review of Genotype-Phenotype Correlations in Frasier Syndrome2021

    • Author(s)
      Tsuji Y, Yamamura T, Nagano C, Horinouchi T, Sakakibara N, Ishiko S, Aoto Y, Rossanti R, Okada E, Tanaka E, Tsugawa K, Okamoto T, Sawai T, Araki Y, Shima Y, Nakanishi K, Nagase H, Matsuo M, Iijima K, Nozu K.
    • Journal Title

      Kidney Int Rep .

      Volume: 6 Issue: 10 Pages: 2585-2593

    • DOI

      10.1016/j.ekir.2021.07.010

    • NAID

      120007165718

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Usefulness of functional splicing analysis to confirm precise disease pathogenesis in Diamond-Blackfan anemia caused by intronic variants in <i>RPS19</i>2021

    • Author(s)
      Takafuji Satoru、Mori Takeshi、Nishimura Noriyuki、Yamamoto Nobuyuki、Uemura Suguru、Nozu Kandai、Terui Kiminori、Toki Tsutomu、Ito Etsuro、Muramatsu Hideki、Takahashi Yoshiyuki、Matsuo Masafumi、Yamamura Tomohiko、Iijima Kazumoto
    • Journal Title

      Pediatric Hematology and Oncology

      Volume: 38 Issue: 6 Pages: 515-527

    • DOI

      10.1080/08880018.2021.1887984

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] An extremely mild clinical course in a case with LAMB2-associated nephritis diagnosed with next-generation sequencing.2021

    • Author(s)
      Sakuraya K, Nozu K, Murakami H, Nagano C, Horinouchi T, Fujinaga S, Iijima K, Ohtomo Y.
    • Journal Title

      CEN Case Reports

      Volume: - Issue: 3 Pages: 359-363

    • DOI

      10.1007/s13730-021-00574-1

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Utility of glomerular Gd-IgA1 staining for indistinguishable cases of IgA nephropathy or Alport syndrome2021

    • Author(s)
      Ishiko Shinya、Tanaka Akihito、Takeda Asami、Hara Masayuki、Hamano Naoto、Koizumi Masahiro、Ueno Toshinori、Hayashi Hiroki、Kondo Atsushi、Nagai Sadayuki、Aoto Yuya、Nozu Kandai
    • Journal Title

      Clinical and Experimental Nephrology

      Volume: Epub Issue: 7 Pages: 779-787

    • DOI

      10.1007/s10157-021-02054-3

    • NAID

      120007125745

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Genetic background, recent advances in molecular biology, and development of novel therapy in Alport syndrome2020

    • Author(s)
      Nozu Kandai、Takaoka Yutaka、Kai Hirofumi、Takasato Minoru、Yabuuchi Kensuke、Yamamura Tomohiko、Horinouchi Tomoko、Sakakibara Nana、Ninchoji Takeshi、Nagano China、Iijima Kazumoto
    • Journal Title

      Kidney Research and Clinical Practice

      Volume: 39 Issue: 4 Pages: 402-413

    • DOI

      10.23876/j.krcp.20.111

    • NAID

      120006956375

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Genotype-phenotype correlations influence the response to angiotensin-targeting drugs in Japanese patients with male X-linked Alport syndrome2020

    • Author(s)
      Yamamura Tomohiko、Horinouchi Tomoko、Nagano China、Omori Takashi、Sakakibara Nana、Aoto Yuya、Ishiko Shinya、Nakanishi Koichi、Shima Yuko、Nagase Hiroaki、Takeda Hiroki、Rossanti Rini、Ye Ming Juan、Nozu Yoshimi、Ishimori Shingo、Ninchoji Takeshi、Kaito Hiroshi、Morisada Naoya、Iijima Kazumoto、Nozu Kandai
    • Journal Title

      Kidney International

      Volume: 98 Issue: 6 Pages: 1605-1614

    • DOI

      10.1016/j.kint.2020.06.038

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison of clinical and genetic characteristics between Dent disease 1 and Dent disease 22020

    • Author(s)
      Sakakibara Nana、Nagano China、Ishiko Shinya、Horinouchi Tomoko、Yamamura Tomohiko、Minamikawa Shogo、Shima Yuko、Nakanishi Koichi、Ishimori Shingo、Morisada Naoya、Iijima Kazumoto、Nozu Kandai
    • Journal Title

      Pediatric Nephrology

      Volume: 35 Issue: 12 Pages: 2319-2326

    • DOI

      10.1007/s00467-020-04701-5

    • NAID

      120007052636

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Onset mechanism of a female patient with Dent disease 22020

    • Author(s)
      Okamoto Takayuki、Sakakibara Nana、Nozu Kandai、Takahashi Toshiyuki、Hayashi Asako、Sato Yasuyuki、Nagano China、Matsuo Masafumi、Iijima Kazumoto、Manabe Atsushi
    • Journal Title

      Clinical and Experimental Nephrology

      Volume: 24 Issue: 10 Pages: 946-954

    • DOI

      10.1007/s10157-020-01926-4

    • NAID

      120007160299

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Common risk variants in NPHS1 and TNFSF15 are associated with childhood steroid-sensitive nephrotic syndrome2020

    • Author(s)
      Jia Xiaoyuan、Yamamura Tomohiko、et al.
    • Journal Title

      Kidney International

      Volume: 98 Issue: 5 Pages: 1308-1322

    • DOI

      10.1016/j.kint.2020.05.029

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Pathogenic evaluation of synonymous COL4A5 variants in X‐linked Alport syndrome using a minigene assay2020

    • Author(s)
      Horinouchi Tomoko、Yamamura Tomohiko、Minamikawa Shogo、Nagano China、Sakakibara Nana、Nakanishi Koichi、Shima Yuko、Morisada Naoya、Ishiko Shinya、Aoto Yuya、Nagase Hiroaki、Takeda Hiroki、Rossanti Rini、Ishimori Shingo、Kaito Hiroshi、Matsuo Masafumi、Iijima Kazumoto、Nozu Kandai
    • Journal Title

      Molecular Genetics & Genomic Medicine

      Volume: 8 Issue: 8

    • DOI

      10.1002/mgg3.1342

    • NAID

      120006879547

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of an Exon Skipping Therapy for X-linked Alport Syndrome With Truncating Variants in COL4A5.2020

    • Author(s)
      Yamamura T, Horinouchi T, Adachi T, Terakawa M, Takaoka Y, Omachi K, Takasato M, Takaishi K, Shoji T, Onishi Y, Kanazawa Y, Koizumi M, Tomono Y, Sugano S, Shono A, Minamikawa S, Nagano C, Sakakibara N, Ishiko S, Aoto Y, Kamura M, Harita Y, Miura K, Kanda S, Morisada N, and 6 others.
    • Journal Title

      Nat Commun .

      Volume: 11(1) Issue: 1 Pages: 2777-2777

    • DOI

      10.1038/s41467-020-16605-x

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Trimerization and genotype-phenotype correlation of COL4A5 mutants in Alport syndrome2020

    • Author(s)
      Kamura Misato、Yamamura Tomohiko、Omachi Kohei、Suico Mary Ann、Nozu Kandai、Kaseda Shota、Kuwazuru Jun、Shuto Tsuyoshi、Iijima Kazumoto、Kai Hirofumi
    • Journal Title

      Kidney International Reports

      Volume: - Issue: 5 Pages: 718-726

    • DOI

      10.1016/j.ekir.2020.01.008

    • NAID

      120006818746

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Functional analysis of suspected splicing variants in CLCN5 gene in Dent disease 1.2020

    • Author(s)
      Inoue T, Nagano C, Matsuo M, Yamamura T, Sakakibara N, Horinouchi T, Shibagaki Y, Ichikawa D, Aoto Y, Ishiko S, Ishimori S, Rossanti R, Iijima K, Nozu K.
    • Journal Title

      Clin Exp Nephrol

      Volume: in press Issue: 7 Pages: 606-612

    • DOI

      10.1007/s10157-020-01876-x

    • NAID

      120007028963

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comprehensive genetic diagnosis of Japanese patients with severe proteinuria.2020

    • Author(s)
      Nagano C, Yamamura T, Horinouchi T, Aoto Y, Ishiko S, Sakakibara N, Shima Y, Nakanishi K, Nagase H, Iijima K, Nozu K.
    • Journal Title

      Sci Rep.

      Volume: 10(1) Issue: 1 Pages: 428-437

    • DOI

      10.1038/s41598-019-57149-5

    • NAID

      120006884200

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Molecular mechanisms determining severity in patients with Pierson syndrome2020

    • Author(s)
      Minamikawa Shogo、Miwa Saori、Inagaki Tetsuji、Nishiyama Kei、Kaito Hiroshi、Ninchoji Takeshi、Yamamura Tomohiko、Nagano China、Sakakibara Nana、Ishimori Shingo、Hara Shigeo、Yoshikawa Norishige、Hirano Daishi、Harada Ryoko、Hamada Riku、Matsunoshita Natsuki、Nagata Michio、Shima Yuko、Nozu Kandai
    • Journal Title

      Journal of Human Genetics

      Volume: 65 Issue: 4 Pages: 355-362

    • DOI

      10.1038/s10038-019-0715-0

    • NAID

      120006811107

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Determination of the pathogenicity of known COL4A5 intronic variants by in vitro splicing assay.2019

    • Author(s)
      Horinouchi T, Nozu K, Yamamura T, Minamikawa S, Nagano C, Sakakibara N, Nakanishi K, Shima Y, Morisada N, Ishiko S, Aoto Y, Nagase H, Takeda H, Rossanti R, Kaito H, Matsuo M, Iijima K.
    • Journal Title

      Sci Rep.

      Volume: 9(1) Issue: 1 Pages: 12696-12696

    • DOI

      10.1038/s41598-019-48990-9

    • NAID

      120006825910

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison between conventional and comprehensive sequencing approaches for genetic diagnosis of Alport syndrome.2019

    • Author(s)
      Yamamura T, Nozu K, Minamikawa S, Horinouchi T, Sakakibara N, Nagano C, Aoto Y, Ishiko S, Nakanishi K, Shima Y, Nagase H, Rossanti R, Ye MJ, Nozu Y, Ishimori S, Morisada N, Kaito H, Iijima K.
    • Journal Title

      Mol Genet Genomic Med.

      Volume: 7(9) Issue: 9

    • DOI

      10.1002/mgg3.883

    • NAID

      120006733124

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inherited salt‐losing tubulopathy: an old condition but a new category of tubulopathy2019

    • Author(s)
      Nozu Kandai、Yamamura Tomohiko、Horinouchi Tomoko、Nagano China、Sakakibara Nana、Ishikura Kenji、Hamada Riku、Morisada Naoya、Iijima Kazumoto
    • Journal Title

      Pediatrics International

      Volume: - Issue: 4 Pages: 428-437

    • DOI

      10.1111/ped.14089

    • NAID

      120006844963

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Clinical and Genetic Characteristics in Patients With Gitelman Syndrome.2018

    • Author(s)
      Fujimura J, Nozu K, Yamamura T, Minamikawa S, Nakanishi K, Horinouchi T, Nagano C, Sakakibara N, Nakanishi K, Shima Y, Miyako K, Nozu Y, Morisada N, Nagase H, Ninchoji T, Kaito H, Iijima K.
    • Journal Title

      Kidney Int Rep.

      Volume: 4 Issue: 1 Pages: 119-125

    • DOI

      10.1016/j.ekir.2018.09.015

    • NAID

      120006847258

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 遺伝性腎疾患研究最前線:国内で行われている最先端の研究に触れる2021

    • Author(s)
      野津寛大
    • Organizer
      第64回日本腎臓学会学術総会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Participation in "KDIGO in Genetics" working group as a researcher2021

    • Author(s)
      野津寛大
    • Organizer
      第64回日本腎臓学会学術総会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 4型コラーゲン関連腎症の発症機序と核酸医薬を用いたエクソンスキッピング療法の開発2021

    • Author(s)
      野津寛大
    • Organizer
      第53回日本結合組織学会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Bartter syndrome and Gitelman syndrome2021

    • Author(s)
      Kandai Nozu
    • Organizer
      14th Asian Congress of Pediatric Nephrology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 14.Novel Exon Skipping therapy in Alport’s Syndrome to prevent CKD and ESRD2021

    • Author(s)
      Kandai Nozu
    • Organizer
      9th Annual Emerging Trands in Dialysis Care
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Bartter syndrome and Gitelman syndrome2021

    • Author(s)
      Nozu K
    • Organizer
      14th Asian Congress of Pediatric Nephrology
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Exon skipping therapy in Alport syndrome2020

    • Author(s)
      Nozu K
    • Organizer
      The American Society of Nephrology Annual Meeting
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Alport syndrome Up To Date and development of gene targeted therapy2020

    • Author(s)
      Nozu K
    • Organizer
      Korean Society of Nephrology, virtual meeting
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] これからの小児科学研究をどのように進めるか;活躍する先輩小児科physician-scientistからのメッセ-ジ2019

    • Author(s)
      野津寛大
    • Organizer
      第122回日本小児科学会学術集会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 遺伝性腎疾患に対するプレシジョンメディスン アルポート症候群に対する遺伝子標的療法の開発2019

    • Author(s)
      野津寛大
    • Organizer
      第54回日本小児腎臓病学会学術集会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] ゲノムから見た腎臓病 症例から考える遺伝性尿細管疾患2019

    • Author(s)
      野津寛大
    • Organizer
      第62回日本腎臓学会学術集会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Bartter syndrome2019

    • Author(s)
      Kandai Nozu
    • Organizer
      International Pediartic Nephrology Association 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 9.Genetics and development of exon-skipping therapy for Alport Syndrome.2019

    • Author(s)
      Kandai Nozu
    • Organizer
      International Pediartic Nephrology Association 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2019-04-18   Modified: 2023-01-30  

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