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The role of CCR4-NOT in the development of atherosclerosis

Research Project

Project/Area Number 20K16153
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 49010:Pathological biochemistry-related
Research InstitutionAkita University

Principal Investigator

An Jianbo  秋田大学, 医学系研究科, 助教 (40723771)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords動脈硬化症 / CCR4-NOT / マクロファージ / Interferon / 動脈硬化 / 炎症応答 / 炎症
Outline of Research at the Start

RNA制御において不可欠な役割を果たすCCR4-NOT複合体は、炎症性疾患との関連が報告されつつあるが、病態におけるCCR4-NOTの標的や制御といった分子的基盤は全く未解明である。本研究では、作製した組織特異的にCCR4-NOT複合体を欠失した遺伝子組換えマウスと、次世代シーケンサーを用いた解析から、動脈硬化病態形成及び進行におけるCCR4-NOTの役割および制御機構を明確にし、RNA制御による動脈硬化症の新たな予防法・治療法の開発に繋ぐことを目的とする。

Outline of Final Research Achievements

CCR4-NOT complex was involved in immune/inflammatory diseases. However, the physiological role of CCR4-NOT in the development of atherosclerosis has not been elucidated.
In this study, by using established ApoE null Cnot3 heterodeficient mice (ApoEKO;Cnot3Hetz), it was demonstrated that dysfunction of Cnot3(CCR4-NOT) exacerbates the progression of atherosclerosis. Interestingly, aberrant inflammation was observed in ApoEKO;Cnot3Hetz. It was found that Cnot3 was highly expressed in atherosclerotic lesions, including macrophages. Macrophages play major roles in mediating inflammatory responses during atherosclerosis. The inflammatory response was significantly enhanced in Cnot3 deficient macrophages under Interferon-gamma stimulation, suggesting CCR4-NOT complex was a negative regulator of IFN signaling.

Academic Significance and Societal Importance of the Research Achievements

近年、免疫・炎症性疾患におけるCCR4-NOT複合体の役割が注目される中、最近では脳血管の難治疾患であるもやもや病(Moyamoya disease)患者においてCNOT3遺伝子のde novo変異が報告され、CCR4-NOTの血管系疾患における重要性が強く示唆された。本研究課題では動脈硬化症を標的に、RNA制御に重要なCCR4-NOT複合体が如何なる機序を介して動脈硬化病態形成に影響するかを解明することにより、新しい血管系疾患の治療の概念創出に繋がることが期待される。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (3 results)

All 2021

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

  • [Journal Article] ACE2-like carboxypeptidase B38-CAP protects from SARS-CoV-2-induced lung injury2021

    • Author(s)
      Yamaguchi T, Hoshizaki M, Minato T, Nirasawa S, Asaka MN, Niiyama M, Imai M, Uda A, Chan JF, Takahashi S, An J, Saku A, Nukiwa R, Utsumi D, Kiso M, Yasuhara A, Poon VK, Chan CC, Fujino Y, Motoyama S, Nagata S, Penninger JM, Kamada H, Yuen KY, Kamitani W, Maeda K, Kawaoka Y, Yasutomi Y, Imai Y, Kuba Keiji
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 6791-6791

    • DOI

      10.1038/s41467-021-27097-8

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 動脈硬化形成におけるCCR4-NOT の役割及び制御機構の解析2021

    • Author(s)
      安健博,山口智和,星崎みどり,久場敬司
    • Organizer
      第87回日本生化学会東北支部例会
    • Related Report
      2021 Annual Research Report
  • [Presentation] マクロファージを介したCCR4-NOTの動脈硬化進行への影響2021

    • Author(s)
      安健博,山口智和,星崎みどり,久場敬司
    • Organizer
      第31回日本循環薬理学会
    • Related Report
      2021 Annual Research Report

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Published: 2020-04-28   Modified: 2023-01-30  

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