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Establishment of new treatments using Rapamycin for Age-Related Oral Disorders

Research Project

Project/Area Number 19K19155
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 57060:Surgical dentistry-related
Research InstitutionTenri University (2023)
Tenri Health Care University (2022)
Osaka University (2019-2021)

Principal Investigator

Sakai Manabu  天理大学, 医療学部, 講師 (50643376)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords老化 / 唾液腺 / ラパマイシン / 口腔乾燥症 / 加齢 / 唾液腺障害 / mTORシグナル経路 / 唾液腺発達 / Salivary glands / Rapamycin
Outline of Research at the Start

本研究は、老化に伴う口腔乾燥症状(ドライマウス)を含めた多くの口腔疾患に対する新たな治療薬や治療法の研究開発を目的とする。口腔乾燥症状は有効な治療は確立されておらず、対症療法に留まっているのが現状である。そこで本研究では、近年注目が高まっており今後活発な研究がなされるであろう老化・加齢分野に着目して検討を行い、これまでの老化・加齢に伴う多くの口腔疾患に対する対症療法とは異なり、根治治療へと繋がる新たな治療薬の開発や治療法の確立を目指す。

Outline of Final Research Achievements

There have been no studies on the effects of rapamycin, which has anti-aging effects, on salivary glands. Therefore, in this study, we aimed to establish a new therapeutic agent and treatment for various oral diseases associated with aging using rapamycin, and examined it using salivary gland organ culture and C57BL/6J-Aged aged mice. The results revealed that the mTOR signaling pathway plays an important role in salivary gland development and that rapamycin regulates salivary gland development via the mTORC1 signaling pathway. Furthermore, we found that C57BL/6J-Aged aging mice increase salivary gland inflammation and water consumption with age, and conversely decrease amylase activity.

Academic Significance and Societal Importance of the Research Achievements

①唾液腺の生育のためにmTORシグナル経路の上流ではPI3K/AKT経路、下流ではS6Kや4eBP1を介して重要な役割を果たしていた。②C57BL/6J-Aged老化マウスは年齢を重ねるにつれて唾液腺の炎症と飲水量を増加させ、反対に機能マーカーであるアクアポリン5、唾液アミラーゼ、ムスカインレセプターの発現を減少させていた。①②の結果から、抗老化作用があるラパマイシンがmTOR経路を介してマウスの老化に伴う変化を制御できる可能性を示した。

Report

(6 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
  • Research Products

    (15 results)

All 2022 2021 2020 2019

All Journal Article (7 results) (of which Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (8 results)

  • [Journal Article] Establishment of a Mouse Submandibular Salivary Gland Organ Culture2022

    • Author(s)
      Sakai M, Sakai T
    • Journal Title

      Current Protocols in Toxicology

      Volume: 9 Issue: 9

    • DOI

      10.1002/cpz1.543

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] The HIF‐1α pathway plays a critical role in salivary gland development in <i>ex vivo</i> organ cultures2021

    • Author(s)
      Kimura Tomomasa、Sakai Manabu、Gojo Nao、Watanabe Mikio、Uzawa Narikazu、Sakai Takayoshi
    • Journal Title

      FEBS Open Bio

      Volume: 12 Issue: 2 Pages: 460-469

    • DOI

      10.1002/2211-5463.13351

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ΔNp63 is upregulated during salivary gland regeneration following duct ligation and irradiation in mice2020

    • Author(s)
      Ikai Kazuki、Sakai Manabu、Minagi Hitomi Ono、Gojo Nao、Sakai Takayoshi
    • Journal Title

      FEBS Letters

      Volume: 594 Issue: 19 Pages: 3216-3226

    • DOI

      10.1002/1873-3468.13896

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of xanthan gum‐thickened liquid aspiration on the lungs in a mouse model2020

    • Author(s)
      Araie Takafumi、Ono Minagi Hitomi、Usami Yu、Ikai Kazuki、Sakai Manabu、Gojo Nao、Nohara Kanji、Sakai Takayoshi
    • Journal Title

      Oral Science International

      Volume: 17 Issue: 2 Pages: 78-85

    • DOI

      10.1002/osi2.1047

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Role of the mTOR signalling pathway in salivary gland development2019

    • Author(s)
      Sakai Manabu、Fukumoto Moe、Ikai Kazuki、Ono Minagi Hitomi、Inagaki Shinobu、Kogo Mikihiko、Sakai Takayoshi
    • Journal Title

      The FEBS Journal

      Volume: 286 Issue: 18 Pages: 3701-3717

    • DOI

      10.1111/febs.14937

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Investigation of putative role of mi RNA 146a‐5p and mi RNA 146b‐5p in pathogenesis of Sj?gren's syndrome2019

    • Author(s)
      Sakai Manabu、Ikai Kazuki、Minagi Hitomi Ono、Araie Takafumi、Sakai Takayoshi
    • Journal Title

      Oral Science International

      Volume: 16 Issue: 3 Pages: 181-184

    • DOI

      10.1002/osi2.1019

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Accuracy of liquid‐based cytology (LBC) in the oral mucosa according to novel diagnostic guidelines in Japan: Classification of cytology for oral mucosal disease (JSCC, 2015)2019

    • Author(s)
      Kondo Yuko、Oya Kaori、Sakai Manabu、Fujiwara Chisato、Tojo Fumiaki、Usami Yu、Fukuda Yasuo、Kogo Mikihiko、Kishino Mitsunobu
    • Journal Title

      Oral Science International

      Volume: 17 Issue: 1 Pages: 22-28

    • DOI

      10.1002/osi2.1035

    • Related Report
      2019 Research-status Report
  • [Presentation] 低酸素誘導因子HIF1αの顎下腺形成機構の解析2022

    • Author(s)
      木村 友昌, 酒井 学, 阪井 丘芳
    • Organizer
      日本口腔組織培養学会
    • Related Report
      2022 Research-status Report
  • [Presentation] 唾液腺の発達におけるHypoxia inducible factor 1αの役割2021

    • Author(s)
      木村友昌, 酒井学, 阪井丘芳
    • Organizer
      第65回日本唾液腺学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 顎下腺の発育における低酸素誘導因子HIFの役割2021

    • Author(s)
      木村友昌, 酒井学、鵜澤成一, 阪井丘芳
    • Organizer
      第66回(公社)日本口腔外科学会総会・学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 胎児期において低酸素誘導因子HIF(Hypoxia inducible factor)が顎下腺の発育に及ぼす影響2021

    • Author(s)
      木村友昌, 酒井学, 五條菜央, 鵜澤成一, 阪井丘芳
    • Organizer
      第75回NPO法人日本口腔科学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 唾液腺の分枝形態形成におけるCDK4/CyckinD1の働き2020

    • Author(s)
      五條菜央、井階一樹、皆木瞳、酒井学、阪井丘芳
    • Organizer
      日本口腔化学会
    • Related Report
      2020 Research-status Report
  • [Presentation] CDK4/CyclinD1 control submandibular branching morphogenesis2020

    • Author(s)
      五條菜央、井階一樹、皆木瞳、酒井学、阪井丘芳
    • Organizer
      歯科基礎学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 唾液腺発達におけるmTORシグナル経路の役割2019

    • Author(s)
      酒井学、井階一樹、皆木瞳、阪井丘芳
    • Organizer
      第64回日本唾液腺学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] Analysis of transcriptional factor p63 expression in salivary glands regeneration2019

    • Author(s)
      Kazuki Ikai, Hitomi Minagi, Manabu Sakai, Takafumi Araie, Takayoshi Sakai
    • Organizer
      GordonResearch Conference -Salivary glands & Exocrine Biology
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2025-01-30  

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