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Innovative approach to anti-MDA5 antibody-positive dermatomyositis; Development of animal models and understanding of pathogenesis

Research Project

Project/Area Number 18K19532
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 53:Organ-based internal medicine and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Sato Shinichi  東京大学, 医学部附属病院, 教授 (20215792)

Co-Investigator(Kenkyū-buntansha) 吉崎 歩  東京大学, 医学部附属病院, 講師 (40530415)
Project Period (FY) 2018-06-29 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2018: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywords皮膚筋炎 / モデル動物 / MD5 / 自己免疫疾患 / MDA5 / 自己抗体
Outline of Final Research Achievements

In this study, we use complete Freund's adjuvant in MDA5-deficient mice to elicit an immune response to the full-length MDA5 peptide and adoptive transfer of immune-responsive cells such as B cells into wild-type mice to generate a mouse model of anti-MDA5 antibody-positive dermatomyositis and analyze the pathogenesis histopathologically, serologically, and cell biologically. Because MDA5 is a self-antigen, tolerance is predicted to be induced and may not be able to elicit an immune response to MDA5. Therefore, we examined whether splenocytes obtained from MDA5-deficient mice immunized with MDA5 can be transfected into wild-type mice by dividing them into T and B cell fractions and inducing pathogenesis. This experiment will also allow the identification of cells that are important for disease development.

Academic Significance and Societal Importance of the Research Achievements

これまで抗MDA5抗体陽性皮膚筋炎の研究は十分に行われていない。オーファン疾患である皮膚筋炎において、その亜型と捉えられる本疾患は患者数がごく少数に限られており、検討に足るまとまった症例数が得られないからである。また、抗MDA5抗体が病勢と相関することが知られているにも関わらず、抗MDA5抗体の病原性についても不明な点が多い。MDA5は細胞質内蛋白であり、通常抗体は細胞内には侵入しないため、抗MDA5抗体がどの蛋白をターゲットとして病原性を発揮しているかは、ブラックボックスである。本研究で挑戦したモデル動物の開発は、本疾患の解析に役立ち、病因と病態の解明への道を拓く点で意義深い。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (16 results)

All 2020 2019 2018

All Journal Article (8 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (8 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results)

  • [Journal Article] Combined immunosuppressive therapy provides favorable prognosis and increased risk of cytomegalovirus reactivation in anti‐melanoma differentiation‐associated gene 5 antibody‐positive dermatomyositis2020

    • Author(s)
      Matsuda Kazuki M.、Yoshizaki Ayumi、Kuzumi Ai、Fukasawa Takemichi、Ebata Satoshi、Yoshizaki‐Ogawa Asako、Sato Shinichi
    • Journal Title

      The Journal of Dermatology

      Volume: - Issue: 5 Pages: 483-489

    • DOI

      10.1111/1346-8138.15274

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prevention of calpain-dependent degradation of STK38 by MEKK2-mediated phosphorylation.2019

    • Author(s)
      A. Enomoto, T. Fukasawa, H. Tsumoto, M. Karube, K. Nakagawa, A. Yoshizaki, S. Sato, Y. Miura, K. Miyagawa.
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 1038-1038

    • DOI

      10.1038/s41598-019-52435-8

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Rituximab therapy is more effective than cyclophosphamide therapy for Japanese patients with anti-topoisomerase I-positive systemic sclerosis-associated interstitial lung disease.2019

    • Author(s)
      Ebata S, Yoshizaki A, Fukasawa T, Miura S, Takahashi T, Sumida H, Asano Y, Sato S.
    • Journal Title

      J Dermatol

      Volume: 46 Issue: 11 Pages: 1006-1013

    • DOI

      10.1111/1346-8138.15079

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Serum levels of human β-defensin 2: possible association with fibrosis and vasculopathy in patients with systemic sclerosis.2019

    • Author(s)
      Kuzumi A, Yoshizaki A, Fukasawa T, Ebata S, Miura S, Yoshizaki A, Sumida H, Asano Y, Sato S.
    • Journal Title

      J Eur Acad Dermatol Venereol.

      Volume: In press Issue: 7

    • DOI

      10.1111/jdv.15546

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A potential contribution of trappin-2 to the development of vasculopathy in systemic sclerosis.2019

    • Author(s)
      Miyagawa T, Asano Y, Saigusa R, Hirabayashi M, Yamashita T, Taniguchi T, Takahashi T, Nakamura K, Miura S, Yoshizaki A, Miyagaki T, Sato S.
    • Journal Title

      J Eur Acad Dermatol Venereol.

      Volume: In press Issue: 4 Pages: 753-760

    • DOI

      10.1111/jdv.15387

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Increased expression of aquaporin-1 in dermal fibroblasts and dermal microvascular endothelial cells possibly contributes to skin fibrosis and edema in patients with systemic sclerosis.2019

    • Author(s)
      Yamashita T, Asano Y, Saigusa R, Taniguchi T, Nakamura K, Miura S, Toyama T, Takahashi T, Ichimura Y, Hirabayashi M, Yoshizaki A, Miyagaki T, Sugaya M, Sato S.
    • Journal Title

      J Dermatol Sci

      Volume: 93 Issue: 1 Pages: 24-32

    • DOI

      10.1016/j.jdermsci.2018.09.007

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] An orally-active adiponectin receptor agonist mitigates cutaneous fibrosis, inflammation and microvascular pathology in a murine model of systemic sclerosis2018

    • Author(s)
      Yamashita Takashi、Lakota Katja、Taniguchi Takashi、Yoshizaki Ayumi、Sato Shinichi、Hong Wen、Zhou Xingchun、Sodin-Semrl Snezn、Fang Feng、Asano Yoshihide、Varga John
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 11843-11843

    • DOI

      10.1038/s41598-018-29901-w

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Rapid alteration of serum interleukin-6 levels may predict the reactivity of i.v. cyclophosphamide pulse therapy in systemic sclerosis-associated interstitial lung disease.2018

    • Author(s)
      Numajiri H, Yoshizaki A, Fukasawa T, Ebata S, Nakamura K, Yamashita T, Saigusa R, Miura S, Hirabayashi M, Yoshizaki A, Sumida H, Asano Y, Kazoe Y, Mawatari K, Kitamori T, Sato S.
    • Journal Title

      J Dermatol.

      Volume: 45 Issue: 10 Pages: 1221-1224

    • DOI

      10.1111/1346-8138.14580

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Tissue microenvironment maintains tissue-resident B cells during B cell depletion therapy in systemic sclerosis2019

    • Author(s)
      Ayumi Yoshizaki, Ai Kuzumi, Takemichi Fukasawa, Satoshi Ebata, Shinichi Sato
    • Organizer
      14th Annual Meeting of the Taiwanese Society for Investigative Dermatology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Responses to therapy are determined by effector B cells in systemic sclerosis-associated interstitial lung disease2019

    • Author(s)
      Satoshi Ebata, Ayumi Yoshizaki, Takemichi Fukasawa, Kazuma Mawatari, Takehiko Kitamori, Shinichi Sato
    • Organizer
      14th Annual Meeting of the Taiwanese Society for Investigative Dermatology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Microenvironment in systemic sclerosis provides a protective niche for tissue-resident B cells during B cell depletion therapy with anti-CD20 antibody2019

    • Author(s)
      Ai Kuzumi, Ayumi Yoshizaki, Takemichi Fukasawa, Satoshi Ebata, Yoshihide Asano, Shinichi Sato
    • Organizer
      2019 ACR (83th)/ARHP (53th) Annual Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 全身性強皮症における血管障害に対するtopoisomerase I特異的B細胞の役割2018

    • Author(s)
      深澤毅倫、吉崎歩、江畑慧、久住藍、平川麻衣子、吉崎麻子、浅野善英、嘉副裕、馬渡和真、北森武彦、佐藤伸一
    • Organizer
      第46回日本臨床免疫学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] 全身性強皮症患者における血清IL-34値の検討2018

    • Author(s)
      久住藍、吉崎歩、遠山聡、深澤毅倫、江畑慧、中村洸樹、三枝良輔、三浦俊介、吉崎麻子、浅野善英、佐藤伸一
    • Organizer
      第46回日本臨床免疫学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] Elevated Serum Interleukin-34 Levels Are Correlated with Interstitial Lung isease in Systemic Sclerosis2018

    • Author(s)
      Suga H, Kuzumi A, Asano Y, Yoshizaki A, Sato S
    • Organizer
      2018 ACR (82th)/ARHP (53th) Annual Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Direct Interaction between Autoreactive B Cells and Endothelial Colony Forming Cells Induces Cytokine Production from B cells through B Cell Receptor and IL-6-JAK2-STAT3 Signaling Pathway, Suppressing Proliferation of Endothelial Colony Forming Cells in Systemic Scleosis2018

    • Author(s)
      Fukasawa T, Yoshizaki A, Ebata S, Nakamura K, Asano Y, Kazoe Y, Mawatari K, Kitamori T, Sato S
    • Organizer
      2018 ACR (82th)/ARHP (53th) Annual Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Rapid alteration of serum interleukin-6 levels may predict the reactivity of i.v. cyclophosphamide pulse therapy in systemic sclerosis-associated interstitial lung disease.2018

    • Author(s)
      Numajiri H, Yoshizaki A, Fukasawa T, Ebata S, Nakamura K, Yamashita T, Saigusa R, Miura S, Hirabayashi M, Yoshizaki A, Sumida H, Asano Y, Kazoe Y, Mawatari K, Kitamori T, Sato S.
    • Organizer
      The 5th Eastern Asia Dermatology Congress (EADC2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2018-07-25   Modified: 2023-03-23  

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