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Study of molecular pathology in which STAT1 gain-of-function mutations cause autoimmune endocrine disorders

Research Project

Project/Area Number 19K17301
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52050:Embryonic medicine and pediatrics-related
Research InstitutionHiroshima University

Principal Investigator

Kagawa Reiko  広島大学, 病院(医), 助教 (40806634)

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 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
KeywordsSTAT1-GOF / CMCD / 複合型免疫不全症 / 脱リン酸化酵素 / ISG / STAT1 / 脱リン酸化障害 / STAT1 GOF変異 / T385M / R274Q / STAT1GOF変異 / 慢性皮膚粘膜カンジダ症(CMCD) / 機能獲得型変異
Outline of Research at the Start

慢性皮膚粘膜カンジダ症(CMCD)は、慢性・反復性にカンジダ感染を発症する原発性免疫不全症で、本症患者の約半数でSTAT1遺伝子の機能が亢進する変異(GOF変異)を認める。最近STAT1-GOF変異を持つ患者が、CMCD以外にも多彩な感染症、自己免疫疾患や内分泌疾患などを合併する重症例の存在が明らかになっている。本研究では、重症の臨床像を示すGOF変異(T385M)を用いて、特異的な遺伝子プロファイルを解析し、重症化する分子メカニズムを解明する。また、解明されたメカニズムにより、これらの分子を標的とした疾患特異的治療の開発を目標とする。

Outline of Final Research Achievements

The gain-of-function research mutation of STAT1 has chronic mucocutaneous Candida infection as the main symptom. But some of the cases are detected such as complicated with combined immunodeficiency disease and autoimmune polyglandular syndrome. In this study, I identified a novel case of the severe T385M mutation. The two cases of this T385M mutation were clinically different in severity.
In order to evaluate the factors that cause the severe symptones, we analyzed the specific gene expression by IFN-γ stimulation. I analysed comprehensive gene expression profile by the T cells isolated from the patient's peripheral blood with stimulated by IFN-γ. It was showed the overexpression of ISG (Interferon-stimulated genes). For the next study, It was also shown that the STAT1-GOF mutation is resistant to specific dephosphorylating enzymes. Both of the finding were some of the factors that induced the sevirty symptones of T385M mutation.

Academic Significance and Societal Importance of the Research Achievements

STAT1-GOF変異を有する患者で認める遺伝子型と表現系相関の背景に存在する分子メカニズムの一部の解明が可能であった。これまで、同変異における標的分子の転写因子の減増により臨床的な重症度が相関することが多くの仮説とされており、網羅的な変異体における機能評価がなされてきた背景がある。標的分子の量的変化に着目されることが多いが、この度は標的分子の質的な変化により、臨床的な重症度が変化することが示された。

Report

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

    (5 results)

All 2022 2021 2020

All Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 2 results)

  • [Journal Article] Enhanced osteoclastogenesis in patients with MSMD due to impaired response to IFN-γ2022

    • Author(s)
      Tsumura Miyuki、Miki Mizuka、Mizoguchi Yoko、Hirata Osamu、Nishimura Shiho、Tamaura Moe、Kagawa Reiko、Hayakawa Seiichi、Kobayashi Masao、Okada Satoshi
    • Journal Title

      Journal of Allergy and Clinical Immunology

      Volume: 149 Issue: 1 Pages: 252-261

    • DOI

      10.1016/j.jaci.2021.05.018

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inherited CARD9 Deficiency in a Child with Invasive Disease Due to Exophiala dermatitidis and Two Older but Asymptomatic Siblings2021

    • Author(s)
      Imanaka Yusuke、Taniguchi Maki、Doi Takehiko、Tsumura Miyuki、Nagaoka Rie、Shimomura Maiko、Asano Takaki、Kagawa Reiko、Mizoguchi Yoko、Karakawa Shuhei、Arihiro Koji、Imai Kohsuke、Morio Tomohiro、Casanova Jean-Laurent、Puel Anne、Ohara Osamu、Kamei Katsuhiko、Kobayashi Masao、Okada Satoshi
    • Journal Title

      Journal of Clinical Immunology

      Volume: - Issue: 5 Pages: 975-986

    • DOI

      10.1007/s10875-021-00988-7

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Pilot Study on Neonatal Screening for Methylmalonic Acidemia Caused by Defects in the Adenosylcobalamin Synthesis Pathway and Homocystinuria Caused by Defects in Homocysteine Remethylation2021

    • Author(s)
      Kagawa Reiko、Tajima Go、Maeda Takako、Sakura Fumiaki、Nakamura-Utsunomiya Akari、Hara Keiichi、Nishimura Yutaka、Yuasa Miori、Shigematsu Yosuke、Tanaka Hiromi、Fujihara Saki、Yoshii Chiyoko、Okada Satoshi
    • Journal Title

      International Journal of Neonatal Screening

      Volume: 7 Issue: 3 Pages: 39-39

    • DOI

      10.3390/ijns7030039

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Current Perspectives on Neonatal Screening for Propionic Acidemia in Japan: An Unexpectedly High Incidence of Patients with Mild Disease Caused by a Common PCCB Variant2021

    • Author(s)
      Tajima Go、Kagawa Reiko、Sakura Fumiaki、Nakamura-Utsunomiya Akari、Hara Keiichi、Yuasa Miori、Hasegawa Yuki、Sasai Hideo、Okada Satoshi
    • Journal Title

      International Journal of Neonatal Screening

      Volume: 7 Issue: 3 Pages: 35-35

    • DOI

      10.3390/ijns7030035

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Autosomal recessive complete STAT1 deficiency caused by compound heterozygous intronic mutations2020

    • Author(s)
      Sakata Sonoko、Tsumura Miyuki、Matsubayashi Tadashi、Karakawa Shuhei、Kimura Shunsuke、Tamaura Moe、Okano Tsubasa、Naruto Takuya、Mizoguchi Yoko、Kagawa Reiko、Nishimura Shiho、Imai Kohsuke、Le Voyer Tom、Casanova Jean-Laurent、Bustamante Jacinta、Morio Tomohiro、Ohara Osamu、Kobayashi Masao、Okada Satoshi
    • Journal Title

      International Immunology

      Volume: 32 Issue: 10 Pages: 663-671

    • DOI

      10.1093/intimm/dxaa043

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research

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

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