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

Role of ATP6ap2 in salt-driven muscle wasting

Research Project

Project/Area Number 21K17685
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 59040:Nutrition science and health science-related
Research InstitutionKagawa University

Principal Investigator

Kitada Kento  香川大学, 医学部, 助教 (30882493)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2022: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
KeywordsATP6ap2 / 筋萎縮 / 塩 / 体液 / 老化
Outline of Research at the Start

加齢や現代の生活習慣に伴う筋萎縮は、健康寿命の低下に直結するが、その発症・進展機序の詳細は明らかにされておらず、予防・治療法も存在しない。申請者は、様々な生活習慣病のリスク因子である高食塩摂取が、筋肉量の低下を引き起こすことを発見した。しかしながら、高食塩摂取に伴う筋肉量減少メカニズムは不明である本研究では、ATP6ap2に焦点を当て高食塩摂取に伴う筋肉量減少メカニズムを解明し、加齢や現代の生活習慣に伴う筋委縮機序の一端を明らかにする。将来的には、食塩の摂り過ぎや加齢に伴う筋委縮を、ATP6ap2を創薬標的とした予防・治療法により克服し、超高齢化社会において健康寿命の延長を達成する。

Outline of Final Research Achievements

Sarcopenia accompanied by aging and modern lifestyles is directly related to a decline in healthy life expectancy, however, the mechanisms of muscle atrophy remain to be clarified. We have reported that high salt intake is a risk for muscle atrophy. We performed bioinformatics analysis using RNA sequence data from the muscle of high salt-fed mice and found that ATP6ap2 is associated with high salt-induced muscle wasting. Administration of a vaccine against ATP6ap2 prevented high salt-induced muscle atrophy. A patent application has been completed for the vaccine, including its efficacy in preventing muscle atrophy.

Academic Significance and Societal Importance of the Research Achievements

本邦は超高齢化社会を迎え、いかに健康寿命を延長させるかが緊急課題となっている。加齢や現代の生活習慣は、筋肉量および筋力の低下を引き起こし、骨折、代謝疾患、寝たきり、死亡などのリスクを上昇させ健康寿命を低下させてしまうが、その発症・進展機序の詳細は不明である。本研究では、高食塩摂取に伴う筋萎縮のメカニズムにATP6ap2が関与すること、また、ATP6ap2に対するワクチン投与により、高食塩摂取による筋委縮を予防できることも見出した。本研究を基盤とした将来的な研究により、食塩の摂り過ぎや加齢に伴う筋委縮を、ATP6ap2を標的としたワクチンにより克服し、健康寿命の延長を達成したい。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (22 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (3 results) Journal Article (8 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 4 results) Presentation (10 results) (of which Invited: 9 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] Duke-NUS Medical School(シンガポール)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Duke-NUS Medical School(シンガポール)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] Duke-NUS Medical School(シンガポール)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Potential Role of the Skin in Hypertension Risk Through Water Conservation2024

    • Author(s)
      Kitada Kento、Nishiyama Akira
    • Journal Title

      Hypertension

      Volume: 81 Issue: 3 Pages: 468-475

    • DOI

      10.1161/hypertensionaha.123.20700

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Revisiting blood pressure and body fluid status2023

    • Author(s)
      Kitada Kento、Nishiyama Akira
    • Journal Title

      Clinical Science

      Volume: 137 Issue: 9 Pages: 755-767

    • DOI

      10.1042/cs20220500

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Possible renoprotective mechanisms of SGLT2 inhibitors.2023

    • Author(s)
      Akira Nishiyama, Kento Kitada
    • Journal Title

      Frontiers in Medicine

      Volume: 10 Pages: 1115413-1115413

    • DOI

      10.3389/fmed.2023.1115413

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tolvaptan induces body fluid loss and subsequent water conservation in normal rats2022

    • Author(s)
      Kidoguchi Satoshi、Kitada Kento、Fujisawa Yoshihide、Nakano Daisuke、Yokoo Takashi、Titze Jens、Nishiyama Akira
    • Journal Title

      Journal of Pharmacological Sciences

      Volume: 149 Issue: 3 Pages: 115-123

    • DOI

      10.1016/j.jphs.2022.04.008

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Blood pressure adaptation in vertebrates: comparative biology2022

    • Author(s)
      Nishiyama Akira、Kitada Kento、Suzuki Miwa
    • Journal Title

      Kidney International

      Volume: 102 Issue: 2 Pages: 242-247

    • DOI

      10.1016/j.kint.2022.03.032

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Contributions of renal water loss and skin water conservation to blood pressure elevation in spontaneously hypertensive rats2022

    • Author(s)
      Ogura Takahiro、Kitada Kento、Morisawa Norihiko、Fujisawa Yoshihide、Kidoguchi Satoshi、Nakano Daisuke、Kobara Hideki、Masaki Tsutomu、Titze Jens、Nishiyama Akira
    • Journal Title

      Hypertension Research

      Volume: 46 Issue: 1 Pages: 32-39

    • DOI

      10.1038/s41440-022-01044-6

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Hepatocellular carcinoma induces body mass loss in parallel with osmolyte and water retention in rats2022

    • Author(s)
      Kidoguchi Satoshi、Kitada Kento、Nakajima Kazuki、Nakano Daisuke、Ohsaki Hiroyuki、Kittikulsuth Wararat、Kobara Hideki、Masaki Tsutomu、Yokoo Takashi、Takahashi Kazuo、Titze Jens、Nishiyama Akira
    • Journal Title

      Life Sciences

      Volume: 289 Pages: 120192-120192

    • DOI

      10.1016/j.lfs.2021.120192

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Sodium/glucose cotransporter 2 and renoprotection: From the perspective of energy regulation and water conservation.2021

    • Author(s)
      Kento Kitada, Satoshi Kidoguchi, Daisuke Nakano, Akira Nishiyama.
    • Journal Title

      Journal of Pharmacological Sciences

      Volume: 147 Issue: 3 Pages: 245-250

    • DOI

      10.1016/j.jphs.2021.07.006

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 高食塩摂取および5/6腎摘モデルラットにおける 各骨部位のナトリウム・カリウム含量変化2023

    • Author(s)
      北田研人, 宗定優紘, 木戸口 慧, 西山 成
    • Organizer
      第66回日本腎臓学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 「多臓器による体液制御機構:夏眠様反応」 に着目した新しい血圧コントロール法の開発2023

    • Author(s)
      北田研人
    • Organizer
      第45会日本高血圧学会総会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 体液喪失が RAS 活性化、体液過剰、血圧上昇の起点となる2023

    • Author(s)
      北田研人
    • Organizer
      第59回高血圧関連疾患モデル学会学術総会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 腎臓と皮膚から捉える体液制御と高血圧2022

    • Author(s)
      北田研人
    • Organizer
      第65回日本腎臓学会学術総会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Rethinking of body fluid and electrolyte regulation from the perspective of fluid loss and dehydration stress response2022

    • Author(s)
      北田研人
    • Organizer
      第26回日本心血管内分泌代謝学会学術総会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 多臓器による体液制御の視点からみるSGLT2阻害薬2022

    • Author(s)
      北田研人
    • Organizer
      第26回日本心不全学会学術集会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Salt and fluid handling in multiple organs2022

    • Author(s)
      北田研人
    • Organizer
      第95回日本生化学会大会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 臓器連関から捉える生体の塩調節機構2022

    • Author(s)
      北田研人
    • Organizer
      第52回日本腎臓学会西部学術大会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 高血圧学におけるモデル動物の再考: ワンポイント測定の落とし穴2021

    • Author(s)
      北田研人
    • Organizer
      第43回総会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Water conservation system -多臓器に制御される水・ナトリウム代謝-2021

    • Author(s)
      北田研人
    • Organizer
      第64回日本腎臓学会学術総会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Patent(Industrial Property Rights)] プロレニン受容体ペプチド、コンジュゲート、および医薬組成物2022

    • Inventor(s)
      西山 成、北田 研人、他
    • Industrial Property Rights Holder
      西山 成、北田 研人、他
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-032709
    • Filing Date
      2022
    • Related Report
      2022 Research-status Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi