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An analysis of various autoantibodies in linear IgA bullous dermatosis

Research Project

Project/Area Number 16K10138
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Dermatology
Research InstitutionKurume University

Principal Investigator

Ohata Chika  久留米大学, 医学部, 准教授 (70362712)

Co-Investigator(Kenkyū-buntansha) 石井 文人  久留米大学, 医学部, 准教授 (80330827)
古賀 浩嗣  久留米大学, 医学部, 講師 (40461412)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords線状IgA水疱性皮膚症 / ELISA / 免疫ブロット / IgG, IgE / cryosection assay
Outline of Final Research Achievements

Recently, IgE autoantibodies have been identified in bullous pemphigoid, which is one of the autoimmune bullous diseases (Ma L, et al. J Dermatol Sci 2015, Moriuchi R, et al, J Dermatol Sci 2015). Because linear IgA bullous dermatosis (LABD) is another autoimmune bullous disease and has many similarities with bullous pemphigoid, the possibility that patients with LABD have IgE autoantibodies was considered. We studied approximately 100 sera of LABD in terms of IgE autoantibody. Indirect immunofluorescence of normal human skin sections revealed IgE antibodies to the basement membrane zone of human skin in 32% of patients. Enzyme-linked immunosorbent assays revealed elevated indices of IgE anti-BP180NC16a antibodies, anti-BP180C terminal antibodies, anti-BP230 antibodies, and anti-collagen VII antibodies in 2-8% of patients.

Academic Significance and Societal Importance of the Research Achievements

自己免疫性水疱症は全身に水疱が生じる難治性、致死的な自己免疫疾患である。代表的な疾患は水疱性類天疱瘡であり、線状IgA水疱性皮膚症はその類縁疾患である。自己免疫性水疱症の原因は自己抗体で、線状IgA水疱性皮膚症では複数のIgA抗体が同定されている。類縁の水疱性類天疱瘡の自己抗体はIgG抗体であるが、IgG抗体以外にIgE抗体が関与していることが近年明らかになった。線状IgA水疱性皮膚症についてもIgE抗体の関与が推測された。本研究では患者血清を用いて、IgE抗体が存在することを明らかにした。難治性の線状IgA水疱性皮膚症でIgE抗体をターゲットにした治療法が期待できることを示唆する結果である。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (13 results)

All 2019 2018 2017 2016

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

  • [Journal Article] High Index Values of Enzyme-Linked Immunosorbent Assay for BP180 at Baseline Predict Relapse in Patients With Bullous Pemphigoid.2018

    • Author(s)
      Koga H, Teye K, Ishii N, Ohata C, Nakama T
    • Journal Title

      Front Med (Lausanne)

      Volume: 5 Pages: 1-5

    • DOI

      10.3389/fmed.2018.00139

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Bacteremia in autoimmune bullous disease patients undergoing double-filtration plasmapheresis.2018

    • Author(s)
      Ohata C, Koga H, Saruta H, et al.
    • Journal Title

      J Dermatolog Treat.

      Volume: - Issue: 4 Pages: 1-3

    • DOI

      10.1080/09546634.2018.1525479

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bullous pemphigoid in a mother (DQB1*03:01:01) and daughter (DRB1*11:01) receiving antidiabetic drugs2018

    • Author(s)
      Koga H, Ishii N, Ohata C et al
    • Journal Title

      Eur J Dermatol

      Volume: 28 Pages: 131-133

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Clinical and Immunological Profiles of 14 Patients With Bullous Pemphigoid Without IgG Autoantibodies to the BP180 NC16A Domain2018

    • Author(s)
      Nakama Kenta、Koga Hiroshi、Ishii Norito、Ohata Chika、Hashimoto Takashi、Nakama Takekuni
    • Journal Title

      JAMA Dermatology

      Volume: 154 Issue: 3 Pages: 347-347

    • DOI

      10.1001/jamadermatol.2017.5465

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] A clinical and serological study of linear IgA bullous dermatosis without linear immunoglobulin deposition other than IgA at the basement membrane zone using direct immunofluorescence.2017

    • Author(s)
      Ohata C, Ishii N, Koga H, Nakama T.
    • Journal Title

      Br J Dermatol.

      Volume: 177 Issue: 1 Pages: 152-157

    • DOI

      10.1111/bjd.15232

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Dermatitis herpetiformis: A cutaneous gluten-related disorder with possible exception in Asian patients.2016

    • Author(s)
      Ohata C.
    • Journal Title

      J Dermatol Res Ther

      Volume: 2 Pages: 039-039

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Brown macule on the waist.2016

    • Author(s)
      Ohata C.
    • Journal Title

      Cutis

      Volume: 97 Pages: 169-172

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Painful purple toes.2016

    • Author(s)
      Ohata C, Imamura T.
    • Journal Title

      Cutis

      Volume: 98

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] IgE autoantibodies in linear IgA bullous dermatosis2019

    • Author(s)
      C. Ohata, Kwesi Teye, N. Ishii, H. Koga and T. Nakama
    • Organizer
      28th EADV Congress. Madrid, Spain (2019.10.9-13)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Advances in diagnosis of autoimmune vesiculobullous diseases2018

    • Author(s)
      Chika Ohata
    • Organizer
      The annual Conference of Dermatopathology Society of India 2018.12.8 Mumbai, India
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Bacteremia in autoimmune bullous disease cases undergoing double-filtration plasmapheresis2018

    • Author(s)
      Chika Ohata, Hiroshi Koga, Hiroshi Saruta, Norito Ishii, Takekuni Nakama
    • Organizer
      76th Annual Meeting of American Academy of Dermatolog
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Syringomatous carcinoma with vascular wall invasion.2016

    • Author(s)
      Chika Ohata, Eri Katayama, Hiroshi Saruta, Aya Nanri, Takekuni Nakama.
    • Organizer
      XXXVII Symposium of the International Society of Dermatopathology.
    • Place of Presentation
      Lima, Peru
    • Year and Date
      2016-10-06
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Reappraisal of the histopathological features of pemphigus and pemphigoid.2016

    • Author(s)
      Chika Ohata, Norito Ishii, Hiroshi Koga, Takekuni Nakama.
    • Organizer
      Pathogenesis of pemphigus and pemphigoid 2016.
    • Place of Presentation
      Munich, Germany
    • Year and Date
      2016-09-05
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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