2018 Fiscal Year Final Research Report
Development of anti-idiotypic vaccine therapy for Alzheimer's disease
Project/Area Number |
16K09696
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Neurology
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Research Institution | Oita University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
松原 悦朗 大分大学, 医学部, 教授 (70219468)
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Research Collaborator |
Miura Yumako
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Project Period (FY) |
2016-04-01 – 2019-03-31
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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 |
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.
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Free Research Field |
アルツハイマー型認知症
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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.
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