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New mechanisms and pathogenesis of Noonan syndrome adn related disorders

Research Project

Project/Area Number 20H03636
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 52050:Embryonic medicine and pediatrics-related
Research InstitutionTohoku University

Principal Investigator

Aoki Yoko  東北大学, 医学系研究科, 教授 (80332500)

Co-Investigator(Kenkyū-buntansha) 新堀 哲也  東北大学, 医学系研究科, 准教授 (40436134)
阿部 太紀  東北大学, 医学系研究科, 助教 (40810594)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2022: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Keywordsシグナル伝達 / 先天性疾患 / がん原遺伝子 / ヌーナン症候群 / モデル生物 / 先天異常 / 低身長
Outline of Research at the Start

ヌーナン症候群類縁疾患は心疾患・低身長・易発がん性を示す先天性疾患である。これまでに代表者らは、コステロ症候群, CFC症候群の原因遺伝子としてHRAS, KRAS, BRAF、ヌーナン症候群の原因遺伝子RIT1, RRAS, RRAS2を世界に先駆けて同定し、RAS/MAPK症候群(という疾患概念を確立してきた。またヌーナン症候群、コステロ症候群、CFC症候群モデルマウス3種類の作成に成功しその治療法開発を行ってきた。本研究は、劣性遺伝を含む新しい遺伝形式を示すヌーナン症候群やモザイクRASopathiesの新規原因遺伝子を同定し、その病態解明を目指す。

Outline of Final Research Achievements

Noonan syndrome related diseases are congenital diseases of short stature, heart disease, and tumor predisposition. Genetic mutations in multiple molecules of the RAS/MAPK signaling pathway have been identified. Among them, LZTR1, which controls the ubiquitination of RAS, has an autosomal recessive inheritance variant and a dominant inheritance variant, but its functional significance is not clear. In this study, we identified LZTR1 mutations, HRAS intragenic duplications, and novel causative genes by comprehensive genome analysis of patients with clinically suspected Noonan syndrome-related diseases. We clarified the genotype-phenotype relationship of mutation-positive individuals. Furthermore, to elucidate the pathophysiology, we analyzed the function of the LZTR1 variant using cultured cells and model organisms.

Academic Significance and Societal Importance of the Research Achievements

LZTR1はその変異がヌーナン症候群で同定されたが、その機能は全く明らかでなかった。申請者らは、LZTR1の機能として、RASをポリユビキチン化し分解に関与することを報告した。海外のグループからもLZTR1がRASのユビキチン化や細胞の局在に関わっていることが報告されたが、LZTR1変異蛋白の機能とヌーナン症候群を引き起こす病態メカニズムはいまだ明らかでは無い。本研究にてLZTR1バリアントをもつヌーナン症候群の病態の一部が明らかになったことは、本疾患の病態解明に貢献し、さらにがん原遺伝子RASのユビキチン化の生物学的な意義解明へ通じると考えられる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (22 results)

All 2022 2021 2020 Other

All Int'l Joint Research (2 results) Journal Article (8 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 4 results) Presentation (9 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results) Remarks (3 results)

  • [Int'l Joint Research] IRCCS(イタリア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Icahn School of Medicine at Mount Sinai(米国)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Cardiac features of Noonan syndrome in Japanese patients2022

    • Author(s)
      Ichikawa Yasuhiro、Kuroda Hiroyuki、Ikegawa Takeshi、Kawai Shun、Ono Shin、Kim Ki-Sung、Yanagi Sadamitsu、Kurosawa Kenji、Aoki Yoko、Ueda Hideaki
    • Journal Title

      Cardiology in the Young

      Volume: Apr 27 Issue: 4 Pages: 1-6

    • DOI

      10.1017/s104795112200124x

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multidisciplinary Management of Costello Syndrome: Current Perspectives2022

    • Author(s)
      Leoni Chiara、Viscogliosi Germana、Tartaglia Marco、Aoki Yoko、Zampino Giuseppe
    • Journal Title

      Journal of Multidisciplinary Healthcare

      Volume: Volume 15 Pages: 1277-1296

    • DOI

      10.2147/jmdh.s291757

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Severe neuroglycopenicsymptoms due to nonketotic hypoglycemia in children withcardio-facio-cutaneous syndrome.2022

    • Author(s)
      Shiohama, T., Fujii, K., Kosaki, R.,Watanabe, Y., Uchida, T., Hagiwara, S., Kinoshita, K., Sugita, K.,Aoki, Y., Shimojo, N.
    • Journal Title

      American Journal of Medical Genetics

      Volume: 18A Issue: 12 Pages: 3505-3509

    • DOI

      10.1002/ajmg.a.62926

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The molecular genetics of RASopathies : An update on novel disease genes and new disorders2022

    • Author(s)
      Tartaglia Marco、Aoki Yoko、Gelb Bruce D.
    • Journal Title

      American Journal of Medical Genetics Part C: Seminars in Medical Genetics

      Volume: 190 Issue: 4 Pages: 425-439

    • DOI

      10.1002/ajmg.c.32012

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Duplications in the G3 domain or switch II region in HRAS identified in patients with Costello syndrome2022

    • Author(s)
      Nagai K, Niihori T, Okamoto N, Kondo A, Suga K, Ohhira T, Hayabuchi Y, Homma Y, Nakagawa R, Ifuku T, Abe T, Mizuguchi T, Matsumoto N, Aoki Y.
    • Journal Title

      Hum Mutat

      Volume: 43 Issue: 1 Pages: 3-15

    • DOI

      10.1002/humu.24287

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Patient with Noonan Syndrome with a KRAS Mutation Who Presented Severe Nerve Root Hypertrophy2021

    • Author(s)
      Ando Yoshihito、Sawada Mikio、Kawakami Tadataka、Morita Mitsuya、Aoki Yoko
    • Journal Title

      Case Reports in Neurology

      Volume: 13 Issue: 1 Pages: 108-118

    • DOI

      10.1159/000512265

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A somatic activating KRAS variant identified in an affected lesion of a patient with Gorham-Stout disease2020

    • Author(s)
      Nozawa Akifumi、Ozeki Michio、Niihori Tetsuya、Suzui Natsuko、Miyazaki Tatsuhiko、Aoki Yoko
    • Journal Title

      Journal of Human Genetics

      Volume: 65 Issue: 11 Pages: 995-1001

    • DOI

      10.1038/s10038-020-0794-y

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Double‐chambered right ventricle complicated by hypertrophic obstructive cardiomyopathy diagnosed as Noonan syndrome2020

    • Author(s)
      Yamamoto Masahiro、Takashio Seiji、Nakashima Naoya、Hanatani Shinsuke、Arima Yuichiro、Sakamoto Kenji、Yamamoto Eiichiro、Kaikita Koichi、Aoki Yoko、Tsujita Kenichi
    • Journal Title

      ESC Heart Failure

      Volume: 2 Issue: 2 Pages: 721-726

    • DOI

      10.1002/ehf2.12650

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Genotype-based management for Noonan syndrome2022

    • Author(s)
      Yoko Aoki
    • Organizer
      International Meeting of Pediatric Endocrinology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Somatic RASopathies: リンパ管腫症・Gorham病の原因検索2022

    • Author(s)
      青木洋子、野澤明史、阿部太紀、新堀哲也、小関道夫
    • Organizer
      第29回日本遺伝子診療学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] LZTR1機能不全によるがん原遺伝子産物RASの異常蓄積と腫瘍増殖の亢進2022

    • Author(s)
      阿部 太紀, 森崎 佳歩, 新堀 哲也, 青木 洋子
    • Organizer
      第95回日本生化学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] HRAS遺伝子に新規ミスセンスバリアント(p.Gly13Ala)を同定した軽症Costello症候群2022

    • Author(s)
      伊達木澄人、川村遥、本川未都里、森内浩幸、後藤悠輔、青木洋子
    • Organizer
      日本人類遺伝学会第67回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Noncanonical GTPases: RRAS2, RRAS, MRAS, RIT1.2021

    • Author(s)
      Yoko Aoki
    • Organizer
      7th International RASopathies Symposium:Pathways to Understanding-Expanding Knowledge,Enhancing Research and Therapeutic Discovery 2
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] HRAS遺伝子内重複患者の分子学的解析と臨床症状2021

    • Author(s)
      永井 康貴、新堀 哲也、岡本 伸彦、近藤 朱音、須賀 健一、大平 智子、早渕 康信、 本間 友佳子、中川 竜二、井福 俊允、阿部 太紀、水口 剛、松本 直通、青木 洋子
    • Organizer
      日本人類遺伝学会第66回大会 第28回日本遺伝子診療学会大会 合同開催
    • Related Report
      2021 Annual Research Report
  • [Presentation] Somatic RASopathies: リンパ管腫症・Gorham病におけるがん原遺伝子RASの関与2021

    • Author(s)
      青木洋子、野澤明史、新堀哲也、小関道夫
    • Organizer
      第43回日本小児遺伝学会学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] RRAS2の活性化変異はヌーナン症候群を引き起こす2020

    • Author(s)
      新堀哲也、永井康貴、藤田京志、大橋博文、岡本伸彦、岡田賢、原田敦子、木原裕貴、Arbogast Thomas, 舟山亮、城田松之、中山啓子、阿部太紀、井上晋一、Tsai I-Chum、松本直通、Davis Erica, Katsanis Nicholas、青木洋子
    • Organizer
      第27回遺伝子診療学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] LZTR1に複合ヘテロ接合体変異を認めたNoonan症候群の一例2020

    • Author(s)
      富永牧子、井上真理、藤井隆成、富田英、梅木郁美、青木洋子、池田裕一
    • Organizer
      日本人類遺伝学会第65回大会
    • Related Report
      2020 Annual Research Report
  • [Remarks] 遺伝医療学分野ホームページ

    • URL

      http://www.medgen.med.tohoku.ac.jp/

    • Related Report
      2022 Annual Research Report
  • [Remarks] 東北大学 大学院医学系研究科 遺伝医療学分野 ホームページ

    • URL

      http://www.medgen.med.tohoku.ac.jp/

    • Related Report
      2021 Annual Research Report
  • [Remarks] 東北大学大学院医学系研究科遺伝医療学分野

    • URL

      http://www.medgen.med.tohoku.ac.jp/

    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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