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Exploration of the pathological relationship between diabetes and Alzheimer's disease through disruption of soluble apoE receptor shearing and release

Research Project

Project/Area Number 18K19526
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 52:General internal medicine and related fields
Research InstitutionToho University

Principal Investigator

Bujo Hideaki  東邦大学, 医学部, 教授 (80291300)

Project Period (FY) 2018-06-29 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsアルツハイマー病 / アポEレセプター / 免疫学的解析 / プロセシング異常 / プロテアーゼ / 脳組織 / アミロイド前駆体タンパク / LR11 / 神経細胞 / 免疫染色 / 糖尿病 / 可溶性LR11 / バイオマーカー / アルツハイマー / 可溶型LR11
Outline of Final Research Achievements

The aim of this study was to investigate that the possible involvement of disturbed proteinase action for the processing of apo E receptor LR11, which has been proposed in the pathological basis of diabetes mellitus, in that of Alzheimer’s disease. The immunohistochemical analysis of brain tissues from patients with Alzheimer’s disease showed that the LR11 staining levels in the neurons, which were decreased with patients with apo E genotype E4, increased in the early clinical stage. The LR11 staining levels were different between the results using antibodies detecting for the ectodomain region and the C-terminal region, respectively. The abnormal processing of LR11 by the disturbed action of proteinases, which play a key role in the trans-differentiation of adipocytes, may be involved in the pathological basis of Alzheimer’s disease.

Academic Significance and Societal Importance of the Research Achievements

LR11 は研究代表者らが動脈硬化巣に発現するアポEレセプターとしてクローニングした新規遺伝子で、プロテアーゼによりプロセシングを受けて可溶性レセプターとなり、その血中濃度は血管病に加えて糖尿病やアルツハイマー病の病態を反映する。本研究の学術的意義は、プロテアーゼ作用障害によるレセプタープロセシング異常が、脂肪細胞トランスディファレンシエーション過程の障害のみならず、アルツハイマー病の病態基盤に関わる可能性を示したことである。本研究成果は、糖尿病患者がアルツハイマー病を合併しやすいという社会的課題への新規の治療開発のアプローチを提示したことに意義がある。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (14 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (7 results) Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Int'l Joint Research] ワシントン大学セントルイス校病理免疫学教室(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ワシントン大学(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ケンブリッジ大学(英国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ワシントン大学(米国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] ワシントン大学(米国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] ワシントン大学(米国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] ケンブリッジ大学(英国)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Soluble LR11 as a Novel Biomarker in Acute Kawasaki Disease2022

    • Author(s)
      Watanabe Kenichi、Suzuki Hiroshi、Jiang Meizi、Tsukano Shinya、Kataoka Satoshi、Ito Sueshi、Sakai Takatsugu、Hirokawa Toru、Saitoh Akihiko、Bujo Hideaki
    • Journal Title

      Circulation Journal

      Volume: 86 Issue: 6 Pages: 977-983

    • DOI

      10.1253/circj.CJ-20-1271

    • NAID

      130008088823

    • ISSN
      1346-9843, 1347-4820
    • Year and Date
      2022-05-25
    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] LR11, an LDL Receptor Gene Superfamily Member, Represses the Norepinephrine-Induced Expression of Uncoupling Protein 1 in Primary Cultured Beige Adipocytes2021

    • Author(s)
      Shoko Nakamura, Meizi Jiang, Rena Oka, Takashi Yamaguchi, Nobuyuki Hiruta, Hiroyuki Ebinuma, Wolfgang J Schneider, Ichiro Tatsuno and Hideaki Bujo
    • Journal Title

      Toho Journal of Medicine

      Volume: 7 Issue: 1 Pages: 48-56

    • DOI

      10.14994/tohojmed.2020-019

    • NAID

      120006976149

    • ISSN
      21891990
    • URL

      https://toho.repo.nii.ac.jp/records/2002962

    • Year and Date
      2021-03-01
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impact of LR11 as Residual Risk on Long-Term Clinical Outcomes in Patients with Coronary Artery Disease Treated with Statins after First Percutaneous Coronary Intervention2020

    • Author(s)
      Suwa Satoru、Ogita Manabu、Takahashi Norihito、Wada Hideki、Dohi Tomotaka、Kasai Takatoshi、Okazaki Shinya、Shimada Kazunori、Miyauchi Katsumi、Bujo Hideaki、Daida Hiroyuki
    • Journal Title

      International Heart Journal

      Volume: 61 Issue: 3 Pages: 470-475

    • DOI

      10.1536/ihj.19-686

    • NAID

      130007849620

    • ISSN
      1349-2365, 1349-3299
    • Year and Date
      2020-05-30
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Soluble LR11 competes with amyloid β in binding to cerebrospinal fluid?high-density lipoprotein2019

    • Author(s)
      Yano Kouji、Hirayama Satoshi、Misawa Naomi、Furuta Ayaka、Ueno Tsuyoshi、Motoi Yumiko、Seino Utako、Ebinuma Hiroyuki、Ikeuchi Takeshi、Schneider Wolfgang J.、Bujo Hideaki、Miida Takashi
    • Journal Title

      Clinica Chimica Acta

      Volume: 489 Pages: 29-34

    • DOI

      10.1016/j.cca.2018.11.024

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Familial Hypercholesterolemia Expert Forum (FAME)研究サブ解析2021

    • Author(s)
      1.小倉正恒, 斯波真理子, 増田大作, 荒井秀典, 武城英明, 石橋 俊, 代田浩之, 古賀伸彦, 及川眞一, 山下静也
    • Organizer
      第53回日本動脈硬化学会総会・学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 疾患マーカーとしての可溶性リポ蛋白受容体-脂肪細胞バイオマーカーの可能性-2020

    • Author(s)
      姜 美子, 武城英明
    • Organizer
      第52回日本動脈硬化学会総会・学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] The LDL-receptor relative LR11 is an autonomous regulator of white-to-beige trans-differentiation in polymer-scaffold 3D-cultured adipocytes.2019

    • Author(s)
      Meizi Jiang, Tatsuro Kanaki, Akiteru Hayashi, Hiroyuki Ebinuma, Wolfgang J. Schneider, Hideaki Bujo
    • Organizer
      American Heart Association(AHA)Scientific Sessions 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2018-07-25   Modified: 2025-01-30  

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