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Development of biomarkers useful for evaluation of disease activity of pediatric rheumatic diseases

Research Project

Project/Area Number 16K19646
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Pediatrics
Research InstitutionOkayama University

Principal Investigator

Yashiro Masato  岡山大学, 大学病院, 助教 (80585943)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2018: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords酸化ストレス / バイオマーカー / 小児リウマチ性疾患 / チオレドキシン / 免疫学 / 臨床
Outline of Final Research Achievements

We established a measurement system for various oxidative stress markers (thioredoxin (TRX), High Mobility Group Box 1 (HMGB-1), d-ROMs) in pediatric rheumatic diseases.
In juvenile idiopathic arthritis (JIA) other than systemic type, serum TRX increased during the acute phase and significantly decreased during the recovery phase. TRX was associated with d-ROMs and ferritin but not with MMP3. HMGB-1 did not show a certain tendency.
TRX and d-ROMs were correlated with systemic inflammation in JIA but not with local inflammation (joint synovitis), suggesting that they may be useful biomarkers for monitoring the activity of pediatric rheumatic diseases.

Academic Significance and Societal Importance of the Research Achievements

小児リウマチ性疾患は成人リウマチ性疾患と異なり、特異的自己抗体の検出率が低く臓器症状より全身症状が強い傾向があるため、疾患活動性の正確な評価が困難である。Thioredoxin(TRX)やd-ROMs は生体内の酸化ストレスを正確かつ鋭敏に評価できるバイオマーカーである。本研究ではTRXとd-ROMsは若年性特発性関節炎(JIA)において、急性期に血清中で上昇し回復期に低下しており、局所炎症(関節滑膜炎)ではなく全身炎症と相関することが明らかになった。本研究により、小児リウマチ性疾患の活動性が正確に評価され、適切なタイミングで必要な治療を開始することが期待される。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (4 results)

All 2019 2018

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (2 results)

  • [Journal Article] Corrigendum to "Serum Procalcitonin Levels in Acute Encephalopathy with Biphasic Seizures and Late Reduced Diffusion".2019

    • Author(s)
      Fujii Y, Yashiro M, Yamada M, Kikkawa T, Nosaka N, Saito Y, Tsukahara K, Ikeda M, Morishima T, Tsukahara H.
    • Journal Title

      Disease Markers

      Volume: 不明 Pages: 1-2

    • DOI

      10.1155/2019/4025694

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Serum Procalcitonin Levels in Acute Encephalopathy with Biphasic Seizures and Late Reduced Diffusion2018

    • Author(s)
      Yosuke Fujii, Masato Yashiro, Mutsuko Yamada, Tomonobu Kikkawa, Nobuyuki Nosaka, Yukie Saito, Kohei Tsukahara, Masanori Ikeda, Tsuneo Morishima, and Hirokazu Tsukahara
    • Journal Title

      Disease Markers

      Volume: - Pages: 1-4

    • DOI

      10.1155/2018/2380179

    • NAID

      120006824828

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 小児リウマチ性疾患における酸化ストレスマーカーの有用性について2019

    • Author(s)
      八代将登
    • Organizer
      第50回 岡山リウマチ研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 小児リウマチ性疾患における酸化ストレスマーカーの有用性について2019

    • Author(s)
      八代将登
    • Organizer
      第50回 岡山リウマチ研究会
    • Related Report
      2018 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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