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Anti-nuclear antibody development during biological disease-modifying anti rheumatic drugs in patients with rheumatoid arthritis

Research Project

Project/Area Number 19K08915
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54020:Connective tissue disease and allergy-related
Research InstitutionWakayama Medical University

Principal Investigator

Fujii Takao  和歌山県立医科大学, 医学部, 教授 (70255462)

Co-Investigator(Kenkyū-buntansha) 松宮 遼  和歌山県立医科大学, 医学部, 助教 (20795372)
藏本 伸生  和歌山県立医科大学, 医学部, 講師 (70444461)
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: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords関節リウマチ / 生物学的抗リウマチ薬 / 抗核抗体 / I型インターフェロン / 2次無効 / 生物学的製剤 / 免疫原性 / サイトカイン
Outline of Research at the Start

われわれはすでにANAの誘導が確認された患者血清を特定できている。これらの血清中ANAをHeLa細胞核の抽出物を用いた免疫沈降法あるいは市販のELISAで調べ、まず未知のANAが含まれないか確認する。未知のANAの対応抗原はそのバンドからMARDI-TOF/MS法により蛋白同定を試みる。一方でANA陽性が確認された同じ血清で抗bDMARD抗体の有無を検討する。bDMARD開始前の血清がある症例については、ANA誘導に関連して上昇したサイトカインを確認し、RAの臨床的疾患活動性指標との関連を見る。

Outline of Final Research Achievements

The treatments for patients with rheumatoid arthritis (RA) made a great progression by the widespread use of biological and targeted synthetic anti-rheumatic drugs (b/tsDMARD). In particular, bDMARD are widely used because they not only suppress joint deformity but also improve patient QOL. However, as a problem peculiar to bDMARD, it has been reported that an anti-drug antibody (ADA, protein that reduces the efficacy) against bDMARD is induced and secondary failure (even if the effect is initially recognized, it becomes ineffective afterwards). In this study, the induction of ADA is correlated with the appearance of antinuclear antibodies frequently observed in patients with collagen disease, and the association involves humoral factors activated by systemic lupus erythematosus such as BAFF and IFN-α.

Academic Significance and Societal Importance of the Research Achievements

bDMARDの費用は高額であり、患者負担も大きい。ADAはbDMARDが2次無効になる要因となるが、ADAを直接測定することは日常診療では不可能でそれを知る手立てがない。今回示した抗核抗体は日常診療で測定でき、ADAの予測因子となり得る。今回の研究のみではバイオマーカーとは言い切れないが、参考になる検査データと考えられる。またADAの活性化機序を明確にしたこと、特にADAと同時に上昇する一部の血清中サイトカインを示したことは、bDMARDの2次無効を抑制する方法を考える上で重要である。上記よりRAの中心的薬剤であるbDMARDの活用法に関する知見を示した本研究は学術的意義があると考えている。

Report

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

    (5 results)

All 2021 2020 2019

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results)

  • [Journal Article] Finger sweating levels evaluated by video capillaroscopy system are increased in patients with systemic sclerosis compared to pre-clinical stage patients2021

    • Author(s)
      Tabata K, , et al
    • Journal Title

      Drug Discoveries & Therapeutics

      Volume: 14 Issue: 1 Pages: 325-329

    • DOI

      10.1186/s13075-020-02351-4

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characteristics of rheumatoid arthritis with immunodeficiency-associated lymphoproliferative disorders to regress spontaneously by the withdrawal of methotrexate and their clinical course: A retrospective, multicenter, case control study2021

    • Author(s)
      Kuramoto N, et al
    • Journal Title

      Mod Rheumatol

      Volume: - Issue: 1 Pages: 24-31

    • DOI

      10.1080/14397595.2021.1879362

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Predicting factors for disappearance of anti-mutated citrullinated vimentin antibodies in sera of patients with rheumatoid arthritis2020

    • Author(s)
      1.Ishigooka N, Fujii T, Abe H, Murakami K, Nakashima R, Hashimoto M, Yoshifuji H, Tanaka M, Ito H, Ohmura K, Morita S, and Mimori T
    • Journal Title

      Mod Rheumatol

      Volume: 30 Issue: 3 Pages: 450-457

    • DOI

      10.1080/14397595.2019.1621439

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Up-regulation of IGF-1, RANTES and VEGF in patients with anti-centromere antibody-positive early/mild systemic sclerosis2020

    • Author(s)
      Tabata Kayoko、Mikita Naoya、Yasutake Misaki、Matsumiya Ryo、Tanaka Katsunori、Tani Sayaka、Okuhira Hisako、Jinnin Masatoshi、Fujii Takao
    • Journal Title

      Modern Rheumatology

      Volume: - Issue: 1 Pages: 1-6

    • DOI

      10.1080/14397595.2020.1726599

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Anti-nuclear antibody development is associated with poor treatment response to biological disease-modifying anti-rheumatic drugs in patients with rheumatoid arthritis.2019

    • Author(s)
      Ishikawa Y, Hashimoto M, Ito H, Tanaka M, Yukawa N, Fujii T, Yamamoto W, Mimori T, Terao C.
    • Journal Title

      Seminars in Arthritis and Rheumatism

      Volume: (印刷中) Issue: 2 Pages: 204-210

    • DOI

      10.1016/j.semarthrit.2019.02.003

    • Related Report
      2019 Research-status Report
    • Peer Reviewed

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

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