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Development of anti-idiotypic vaccine therapy for Alzheimer's disease

Research Project

Project/Area Number 16K09696
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Neurology
Research InstitutionOita University

Principal Investigator

Yabuuchi Kenichi  大分大学, 医学部, 助教 (10763807)

Co-Investigator(Kenkyū-buntansha) 松原 悦朗  大分大学, 医学部, 教授 (70219468)
Research Collaborator Miura Yumako  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsワクチン / アルツハイマー型認知症 / アミロイドベータオリゴマー / 抗イディオタイプ抗体 / 神経病態免疫学 / 抗位ディオタイプ抗体 / 神経内科学
Outline of Final Research Achievements

Aβ oligomers have been recognized as the true pathogenic molecules and the therapeutic target for Alzheimer's disease. This study aimed to develop a novel anti-idiotypic vaccine therapy for Alzheimer's disease using the anti-Aβ oligomer antibody that we have developed independently. Through the hybridoma technique, we obtained a few novel antibodies in vitro to neutralize the anti-Aβ oligomer antibody without neurotoxicity themselves, but we couldn't prove the activities as vaccines in vivo. Further study to reveal these antibodies structure will be need to design analogues with vaccine-like action.

Academic Significance and Societal Importance of the Research Achievements

アルツハイマー型認知症の原因であるAβオリゴマーに似せた分子を免疫学的手法で作り出し,1回投与でアルツハイマー型認知症を予防できるワクチンの開発を目指した.独自に開発したAβオリゴマーの特異的抗体をマウスに免疫し,そのリンパ節の細胞を取り出して,抗体を作る能力を持つがん細胞(骨髄腫細胞)と融合させ,もとの抗体と結合する新しい抗体を選び出した(スクリーニング).その結果,それ自身は毒性がなく,もとの抗体の機能を中和する,ごく少数の新規抗体が得られたが,安定して得ることは困難で,それが生体内で機能することは確認できなかった.今後はこの新規抗体の構造を検討し,生体内での有効性を確認する必要がある.

Report

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

    (1 results)

All 2017

All Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] Characteristics of a patient population of Dementia with Lewy bodies (DLB) and Parkinson’s disease with dementia (PDD) exhibiting frontal hypoperfusion in brain perfusion SPECT2017

    • Author(s)
      Yabuuchi K, Kimura N, Miura Y, Matsubara E
    • Organizer
      World Congress of Neurology - Kyoto, 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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

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