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Validation of serotonin-targeted cartilaginous bone dysplasia in pediatric sleep apnea animal model

Research Project

Project/Area Number 20K10223
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57070:Developmental dentistry-related
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Hosomichi Jun  東京医科歯科大学, 大学院医歯学総合研究科, 准教授 (00420258)

Co-Investigator(Kenkyū-buntansha) 下澤 達雄  国際医療福祉大学, 医学部, 主任教授 (90231365)
前田 秀将  東京医科大学, 医学部, 准教授 (60407963)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords閉塞性睡眠時無呼吸症 / 小児 / 交感神経 / 骨軟骨代謝 / 間欠的低酸素状態 / 認知機能 / 情動 / 間欠的低酸素 / β2受容体 / 成長 / 顎骨 / 骨代謝 / 軟骨代謝 / 交感神経β2受容体 / 間欠的低酸素曝露 / 疾患モデル動物 / 軟骨性骨形成
Outline of Research at the Start

夜間の間欠性低酸素(IH)血症を伴う小児の閉塞性睡眠時無呼吸症(OSA)は、神経発達障害とともに、低身長や小顎症などの成長障害を惹起する小児疾患である。OSAの全身病態には、IH曝露による脳内セロトニン(5-HT)の分泌減少およびセロトニン受容体(5-HT受容体)の機能低下が関わる。しかし、セロトニンが軟骨細胞の増殖・分化を促すことは知られているものの、小児OSAにおいて「IH曝露によるセロトニン系の変調が、軟骨性の骨成長を抑制するのか」解明した報告はない。そこで本研究は、成長期睡眠時無呼吸症モデル動物を用いて、小児期のIH曝露における下顎骨・長管骨の成長軟骨の代謝の病態を検証する。

Outline of Final Research Achievements

Activation of the sympathoadrenal system is associated with sleep apnea-related symptoms and metabolic dysfunction induced by chronic intermittent hypoxia (IH). IH can induce hormonal imbalances and growth retardation of the craniofacial bones. However, the relationship between IH and β2-adrenergic receptor signaling in the context of skeletal growth regulation is unclear. This study aimed to investigate the role of β2-adrenergic receptors in IH-induced mandibular growth retardation and bone metabolic alterations. Recovery of RANKL expression was observed in IH-exposed rats administered with butoxamine. Collectively, our findings suggest that the activation of β2-adrenergic receptors and leptin signaling during growth may be involved in IH-induced skeletal growth retardation of the mandible, which may be mediated by concomitant changes in RANKL expression at the growing condyle.

Academic Significance and Societal Importance of the Research Achievements

本研究課題の成果は、IH 曝露に伴う顎顔面成長障害の新たな病態機構を示すともに、小児OSA 患者における顎の形や大きさの不調和に対する治療法開発の糸口となることが期待される。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (16 results)

All 2022 2021 2020 Other

All Int'l Joint Research (2 results) Journal Article (5 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (4 results) (of which Int'l Joint Research: 3 results) Remarks (5 results)

  • [Int'l Joint Research] チュラロンコン大学(タイ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] 深セン大学(中国)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Gestational Intermittent Hypoxia Induces Mitochondrial Impairment in the Geniohyoid Muscle of Offspring Rats2022

    • Author(s)
      Wongkitikamjorn Wirongrong、Hosomichi Jun、Wada Eiji、Maeda Hideyuki、Satrawaha Sirichom、Hong Haixin、Hayashi Yukiko K、Yoshida Ken-ichi、Ono Takashi
    • Journal Title

      Cureus

      Volume: - Pages: 1-11

    • DOI

      10.7759/cureus.25088

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Selective β2-Adrenoceptor Blockade Rescues Mandibular Growth Retardation in Adolescent Rats Exposed to Chronic Intermittent Hypoxia2021

    • Author(s)
      Hong Haixin、Hosomichi Jun、Maeda Hideyuki、Ishida Yuji、Usumi-Fujita Risa、Yoshida Ken-ichi、Ono Takashi
    • Journal Title

      Frontiers in Physiology

      Volume: 12 Pages: 676270-676270

    • DOI

      10.3389/fphys.2021.676270

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Intermittent hypoxia inhibits mandibular cartilage growth with reduced TGF-β and SOX9 expressions in neonatal rats.2021

    • Author(s)
      Lekvijittada K, Hosomichi J, Maeda H, Hong H, Changsiripun C, Kuma YI, Oishi S, Suzuki JI, Yoshida KI, Ono T.
    • Journal Title

      Sci Rep.

      Volume: 11 Issue: 1 Pages: 1140-1140

    • DOI

      10.1038/s41598-020-80303-3

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Intermittent hypoxia induces turbinate mucosal hypertrophy via upregulating the gene expression related to inflammation and EMT in rats2020

    • Author(s)
      Kuma Yo-ichiro、Hosomichi Jun、Maeda Hideyuki、Oishi Shuji、Usumi-Fujita Risa、Shimizu Yasuhiro、Kaneko Sawa、Suzuki Jun-ichi、Yoshida Ken-ichi、Ono Takashi
    • Journal Title

      Sleep and Breathing

      Volume: online Issue: 2 Pages: 1-8

    • DOI

      10.1007/s11325-020-02162-6

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Intermittent hypoxia retards mandibular growthand alters RANKL expression in adolescent and juvenile rats2020

    • Author(s)
      Haixin Hong, Jun Hosomichi, Hideyuki Maeda, Kochakorn Lekvijittada, Shuji Oishi, Yuji Ishida, Risa Usumi-Fujita1, Sawa Kaneko1, Jun-ichi Suzuki, Ken-ichi Yoshida, Takashi Ono
    • Journal Title

      European Journal of Orthodontics

      Volume: 43 Issue: 1 Pages: 94-103

    • DOI

      10.1093/ejo/cjaa020

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 上顎臼歯の先天性欠如に留意してWunderer法併用Le Fort I型骨切り術を行った骨格性Ⅱ級開咬の一例2021

    • Author(s)
      細道 純、臼見 莉沙、藤田 紘一、今井 治樹、本田 康二、山下 陽介、廣田 誠、大村 進、小野 卓史
    • Organizer
      第31回 日本顎変形症学会 総会・学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Effects of intermittent hypoxia on learning and memory functions in infant rats.2020

    • Author(s)
      Angkanawaraphan K, Hosomichi J, Maeda H, Changsiripun C, Haixin H, Ono T.
    • Organizer
      9th International Orthodontic Congress
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Intermittent Hypoxia Inhibits Mandibular Cartilage Growth by Reducing TGF-β and SOX9 Expression Levels in Infant Rats.2020

    • Author(s)
      Lekvijittada K, Hosomichi J, Maeda H, Hong H, Changsiripun C, Kuma Y, Oishi S, Suzuki JI, Yoshida KI, Ono T.
    • Organizer
      9th International Orthodontic Congress
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Intermittent hypoxia reduces RANKL expression in impaired mandibular growth through the β2-adrenergic receptor in adolescent rats.2020

    • Author(s)
      Hong H,Oishi S, Ishida Y, Usumi-Fujita R, Kaneko S, Yoshida KI, Ono T.
    • Organizer
      9th International Orthodontic Congress
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Remarks] 「小児期の間欠的低酸素曝露による下顎成長障害がβ2受容体遮断薬により改善」

    • URL

      https://www.tmd.ac.jp/archive-tmdu/kouhou/20210114-1.pdf

    • Related Report
      2021 Research-status Report
  • [Remarks] 東京医科歯科大学プレスリリース(和文)

    • URL

      https://www.tmd.ac.jp/archive-tmdu/kouhou/20210114-1.pdf

    • Related Report
      2020 Research-status Report
  • [Remarks] 東京医科歯科大学プレスリリース(英文)

    • URL

      https://www.tmd.ac.jp/english/press-release/20210114-1/

    • Related Report
      2020 Research-status Report
  • [Remarks] 東京医科歯科大学公式Twitter【研究成果発表】 大学院医歯学総合研究科 講師 細道 純

    • URL

      https://twitter.com/tmdu_pr/status/1349637390734749696

    • Related Report
      2020 Research-status Report
  • [Remarks] How Hypoxia Exposure Affects Jaw Cartilage Growth

    • URL

      https://scienmag.com/the-jaws-of-life-how-hypoxia-exposure-affects-jaw-cartilage-growth/

    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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