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Involvement of the complemet factor B in the etiology of membranous proliferative glomerulonephritis

Research Project

Project/Area Number 25860873
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Pediatrics
Research InstitutionUniversity of Miyazaki

Principal Investigator

Imamura Hideaki  宮崎大学, 医学部, 助教 (20433063)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords膜性増殖性糸球体腎炎 / 補体 / 非典型溶血性尿毒症症候群 / 補体第二経路 / 補体B因子
Outline of Final Research Achievements

We reveal that CFB p.S367R has gain-of-function effects in CFB from the finding including structure-function relationship of CFB p.S367R and elevated soluble C5b-9 levels which indicate continuous activity of the complement alternative pathway. This is the first report that demonstrates the involvement of CFB in the etiology of MPGN. However, culturing a large quantity of CFB p.S367R was unsuccessful.
Evaluation of soluble C5b-9 levels in patients with thrombotic microangiopathy(TMA) revealed complement activations contribute not only in the etiology of atypical hemolytic uremic syndrome, but also in shiga toxin producing E.coli-associated HUS and secondary TMA.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (5 results)

All 2016 2015 2014

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (4 results)

  • [Journal Article] Familial C3 glomerulonephritis associated with mutations in the gene for complement factor B.2015

    • Author(s)
      Imamura H, Konomoto T, Tanaka E, Hisano S, Yoshida Y, Fujimura Y, Miyata T, Nunoi H.
    • Journal Title

      Nephrol Dial Transplant.

      Volume: 30 Issue: 5 Pages: 862-864

    • DOI

      10.1093/ndt/gfv054

    • Related Report
      2015 Annual Research Report 2014 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] エクリズマブが著効した抗H因子抗体陽性非典型溶血性尿毒症症候群(DEAP-HUS)の1例2016

    • Author(s)
      今村秀明、此元隆雄、阪口嘉美、織田真悠子、大塚泰史、 吉田瑶子、加藤秀樹、南学正臣、宮田敏行、布井博幸
    • Organizer
      第46回日本腎臓学会西部学術大会
    • Place of Presentation
      宮崎市
    • Year and Date
      2016-10-14
    • Related Report
      2015 Annual Research Report
  • [Presentation] エクリズマブ投与により救命し得た移植関連血栓性微小血管障害合併神経芽腫2016

    • Author(s)
      山田 愛, 中川 緑, 木下 真理子, 澤 大介, 織田 真悠子, 今村 秀明, 上村 幸代, 此元 隆雄, 盛武 浩, 布井 博幸
    • Organizer
      第119回日本小児科学会学術集会
    • Place of Presentation
      札幌市
    • Year and Date
      2016-05-13
    • Related Report
      2015 Annual Research Report
  • [Presentation] 非典型溶血性尿毒症症候群を合併したNEMO遺伝子異常症の1例2016

    • Author(s)
      今村 秀明, 山元 綾子, 阪口 嘉美, 織田 真悠子, 此元 隆雄, 南学 正臣, 宮田 敏行, 大塚 泰史, 布井 博幸
    • Organizer
      第119回日本小児科学会学術集会
    • Place of Presentation
      札幌市
    • Year and Date
      2016-05-13
    • Related Report
      2015 Annual Research Report
  • [Presentation] 膜性増殖性糸球体腎炎に対する腎移植とC3 glomerulopathy2014

    • Author(s)
      今村 秀明、田中 悦子、此元 隆雄
    • Organizer
      第47回日本臨床腎移植学会
    • Place of Presentation
      奈良市
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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