• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Basic research for a new concurrent treatment against lifestyle diseases and Alzehimer disease.

Research Project

Project/Area Number 18H02732
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 52010:General internal medicine-related
Research InstitutionOsaka University

Principal Investigator

Yamamoto Koichi  大阪大学, 医学系研究科, 准教授 (00528424)

Co-Investigator(Kenkyū-buntansha) 中神 啓徳  大阪大学, 医学系研究科, 寄附講座教授 (20325369)
沢村 達也  信州大学, 学術研究院医学系, 教授 (30243033)
武田 朱公  大阪大学, 医学系研究科, 寄附講座准教授 (50784708)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥12,870,000 (Direct Cost: ¥9,900,000、Indirect Cost: ¥2,970,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2020: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2019: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2018: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords認知症 / アルツハイマー病 / 生活習慣病 / ワクチン / アンジオテンシンII受容体 / AGE受容体 / アミロイドβ / アンジオテンシン / レニン-アンジオテンシン系
Outline of Final Research Achievements

Based on our findings that the type 1 receptor of angiotensin II (AII) (AT1), which regulates blood pressure, is responsible for the cellular response of amyloid-β (Aβ), which promotes Alzheimer's disease (AD), we conducted a basic study to investigate whether vaccine therapy against AT1 could be a disease-modifying-drug for AD. First, we confirmed that three anti-AT1 vaccines suppressed AII-induced hypertensive response in mice. We also confirmed that mouse serum after anti-AT1 vaccine administration or purified anti-AT1 antibody inhibited intracellular Aβ uptake. On the other hand, when one type of anti-AT1 vaccine was administered to aged mice and their cognitive function was evaluated 6 months later, there was no apparent improvement in cognitive function compared to the control vaccine.

Academic Significance and Societal Importance of the Research Achievements

アルツハイマー型認知症(AD)の根本的治療薬(DMT)は未だに確立されておらず、研究の進展が望まれている。本研究は独自の研究結果に基づいて、アンジオテンシンII1型受容体(AT1)に対するワクチンがAD治療に有効であるか基礎的に検証する計画であった。研究成果からはアミロイドβ(Aβ)がADを促進する細胞反応を抗AT1ワクチンで産生される抗体が抑制する結果が得られたが、高齢マウスの認知機能の改善作用は認められなかった。本研究の過程でAT1に対する阻害療法がADを改善することを支持する研究成果が得られており、今後も継続的に検討を行うことでADのDMT開発につながることが期待される。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (2 results)

All 2021

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 2 results)

  • [Journal Article] RAGE ligands stimulate angiotensin II type I receptor (AT1) via RAGE/AT1 complex on the cell membrane2021

    • Author(s)
      Yokoyama Serina、Kawai Tatsuo、Yamamoto Koichi、Yibin Huang、Yamamoto Hiroko、Kakino Akemi、Takeshita Hikari、Nozato Yoichi、Fujimoto Taku、Hongyo Kazuhiro、Takahashi Toshimasa、Nakagami Futoshi、Akasaka Hiroshi、Takami Yoichi、Takeya Yasushi、Sugimoto Ken、Sawamura Tatsuya、Rakugi Hiromi
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 5759-5759

    • DOI

      10.1038/s41598-021-85312-4

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The endocytosis of oxidized LDL via the activation of the angiotensin II type 1 receptor2021

    • Author(s)
      Takahashi Toshimasa、Huang Yibin、Yamamoto Koichi、et al.
    • Journal Title

      iScience

      Volume: 24 Issue: 2 Pages: 102076-102076

    • DOI

      10.1016/j.isci.2021.102076

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research

URL: 

Published: 2018-04-23   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi