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

The functional analysis of the calcium sensing receptor in the inner ear, and exploration of its application

Research Project

Project/Area Number 19K09896
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56050:Otorhinolaryngology-related
Research InstitutionNagoya City University

Principal Investigator

Inagaki Akira  名古屋市立大学, 医薬学総合研究院(医学), 研究員 (70405166)

Co-Investigator(Kenkyū-buntansha) 鵜川 眞也  名古屋市立大学, 医薬学総合研究院(医学), 教授 (20326135)
山村 寿男  名古屋市立大学, 医薬学総合研究院(薬学), 教授 (80398362)
関谷 真二  名古屋市立大学, 医薬学総合研究院(医学), 研究員 (50770591)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsカルシウム感知受容体 / 内耳 / 聴覚 / 蝸牛 / 聴力
Outline of Research at the Start

本研究の端緒は、聴覚系は恒常性の維持のために様々なメカニズムが発達しているが、生理学的な重要性にもかかわらずCa2+の恒常性維持のメカニズムが十分解明されていないことに着目し、体液のCa2+濃度の恒常性維持にも利用されるCa2+センサーを用いたフィードバックメカニズムの候補を検討したところ、内耳でのCaSRの機能発現を示す知見を得た。その機能の詳細を検討する。

Outline of Final Research Achievements

We attempted to clarify its function in the calcium homeostasis in the cochlea by developing knockout mice, those lack calcium sensing receptor to identify its function in the inner ear. However, the elimination of calcium sensing receptor brought lethality in the offspring, therefore we tried to develop double knockout mice to ameliorate its effects in the off-target organs. Unfortunately, the attempt has not succeeded. Therefore, we focused on the pharmacological suppression of the calcium sensing receptor. In the previous project, we injected antagonists to the perilymphatic space in the inner ear directly, which hamper a various analysis due to its surgical invasiveness. To overcome this, we focused on the drug transfer in the targeted tissues, and identified the level of the drug transfer level by using tandem mass spectrometry. These outcomes are anticipated to be a reference for the further analysis in the field in the near future.

Academic Significance and Societal Importance of the Research Achievements

聴力は社会への参加に必要なコミュニケーションになくてはならない、必要不可欠な機能である。本研究の成果は、将来的にカルシウムの恒常性異常による聴覚異常に対する介入店となる可能性がある。カルシウムの恒常性異常による聴覚異常の一つに加齢性難聴が挙げられ、今後高齢化社会を迎えるにあたり、本研究の成果がそれらに対する対応策を講ずるための一助となりえる。

Report

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

    (22 results)

All 2023 2022 2021 2020 2019

All Journal Article (15 results) (of which Peer Reviewed: 13 results,  Open Access: 8 results) Presentation (5 results) (of which Invited: 1 results) Book (2 results)

  • [Journal Article] Frequency‐dependent hearing outcomes with or without preservation of intact ossicular articulations2023

    • Author(s)
      Akira Inagaki, Mariko Takahashi, Shingo Murakami
    • Journal Title

      Laryngoscope Investigative Otolaryngology

      Volume: 8 Issue: 1 Pages: 185-191

    • DOI

      10.1002/lio2.1001

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Acoustic neuromas associated with sudden sensorineural hearing loss.2023

    • Author(s)
      Mariko Takahashi, Akira Inagaki, Noritaka Aihara, Shingo Murakami
    • Journal Title

      Acta oto-laryngologica

      Volume: 142 Issue: 5 Pages: 415-418

    • DOI

      10.1080/00016489.2022.2080862

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 診療つれづれ 耳鼻咽喉科の外来手術室、私の工夫2022

    • Author(s)
      稲垣 彰
    • Journal Title

      JOHNS

      Volume: 38 Pages: 225-227

    • Related Report
      2021 Research-status Report
  • [Journal Article] Intratympanic steroid therapy for Bell’s palsy with poor prognostic results2021

    • Author(s)
      Akira Inagaki, Sachiyo Katsumi, Shinji Sekiya, Shingo Murakami
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 8058-8058

    • DOI

      10.1038/s41598-021-87551-x

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 【手術道具・材料はこう使う!-プロに学ぶ基本とコツ】耳科領域 耳科手術材料2021

    • Author(s)
      稲垣彰
    • Journal Title

      耳鼻咽喉科・頭頸部外科

      Volume: 93 Pages: 892-895

    • Related Report
      2021 Research-status Report
  • [Journal Article] 【聴神経腫瘍における神経耳科学検査の進歩と応用】神経耳科学検査を活用した小聴神経腫瘍の治療戦略2021

    • Author(s)
      稲垣彰
    • Journal Title

      Otology Japan

      Volume: 31 Pages: 250-262

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Facial and hearing outcomes in transmastoid nerve decompression for Bell's palsy, with preservation of the ossicular chain.2021

    • Author(s)
      Inagaki A, Takahashi M, Murakami S.
    • Journal Title

      Clin Otolaryngol

      Volume: 46 Issue: 2 Pages: 325-331

    • DOI

      10.1111/coa.13671

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Clinical characteristics, the diagnostic criteria and management recommendation of otitis media with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (OMAAV) proposed by Japan Otological Society.2021

    • Author(s)
      Harabuchi Y, Kishibe K, Tateyama K, Morita Y, Yoshida N, Okada M, Kunimoto Y, Watanabe T, Inagaki A, Yoshida T, Imaizumi M, Nakamura T, Matsunobu T, Kobayashi S, Iino Y, Murakami S, Takahashi H, Tono T.
    • Journal Title

      Auris Nasus Larynx

      Volume: 48 Issue: 1 Pages: 2-14

    • DOI

      10.1016/j.anl.2020.07.004

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] RESPONSE TO LETTER TO THE EDITOR: "EFFECT OF INTRATYMPANIC DEXAMETHASONE ON BELL'S PALSY: LETTER TO THE EDITOR"2021

    • Author(s)
      Inagaki A, Minakata T, Katsumi S, Murakami S
    • Journal Title

      Otol Neurotol

      Volume: 42 Issue: 3 Pages: 483-484

    • DOI

      10.1097/mao.0000000000002972

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Imaging manifestations on sequential magnetic resonance imaging in pharyngolaryngeal involvement by varicella zoster virus.2021

    • Author(s)
      Inagaki A, Kojima A, Ogawa M, Sakata T, Iwasaki S.
    • Journal Title

      J Neurovirol.

      Volume: 27 Issue: 1 Pages: 186-190

    • DOI

      10.1007/s13365-021-00953-5

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Data for temporal facial nerve recovery in Ramsay Hunt syndrome following intratympanic steroid therapy.2020

    • Author(s)
      Inagaki A, Minakata T, Katsumi S, Murakami S.
    • Journal Title

      Data Brief

      Volume: 30 Pages: 105549-105549

    • DOI

      10.1016/j.dib.2020.105549

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Concurrent Treatment With Intratympanic Dexamethasone Improves Facial Nerve Recovery in Ramsay Hunt Syndrome2020

    • Author(s)
      Inagaki A, Minakata T, Katsumi S, Murakami S.
    • Journal Title

      Journal of neurological sciences

      Volume: 410 Pages: 116678-116678

    • DOI

      10.1016/j.jns.2020.116678

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Concurrent Treatment With Intratympanic Dexamethasone for Moderate-Severe Through Severe Bell's Palsy2019

    • Author(s)
      Inagaki A, Minakata T, Katsumi S, Murakami S.
    • Journal Title

      Otology Neurotology

      Volume: 40 Issue: 10 Pages: e1018-e1023

    • DOI

      10.1097/mao.0000000000002377

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Clinical and Radiological Characteristics of Malignant Tumors Located to the Cerebellopontine Angle and/or Internal Acoustic Meatus2019

    • Author(s)
      Eliezer M, Tran H, Inagaki A, Vérillaud B, Takahashi M, Marie JP, Hautefort C, Herman P, Murakami S, Kania R.
    • Journal Title

      Otology Neurology

      Volume: 40 Issue: 9 Pages: 1237-1245

    • DOI

      10.1097/mao.0000000000002360

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Calcium-Sensing Receptor Is Functionally Expressed in the Cochlear Perilymphatic Compartment and Essential for Hearing2019

    • Author(s)
      Minakata Toshiya、Inagaki Akira、Yamamura Aya、Yamamura Hisao、Sekiya Shinji、Murakami Shingo
    • Journal Title

      Frontiers in Molecular Neuroscience

      Volume: 12 Pages: 175-175

    • DOI

      10.3389/fnmol.2019.00175

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 顔面神経減荷術2020

    • Author(s)
      稲垣彰 関谷真二 南方寿哉  高橋真理子 村上信五 岩崎真一
    • Organizer
      日本耳鼻咽喉科学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 顔面神経減荷術2020

    • Author(s)
      稲垣彰 村上信五 岩崎真一
    • Organizer
      日本顔面神経学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 顔面神経減荷術2020

    • Author(s)
      稲垣彰
    • Organizer
      日本耳科学会総会・学術講演会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Bell 麻痺に対する経乳突顔面神経減荷術の効果2020

    • Author(s)
      稲垣彰 村上信五 岩崎真一
    • Organizer
      日本耳科学会総会・学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 神経耳科学検査を活用した小聴神経腫瘍の治療戦略2020

    • Author(s)
      稲垣彰
    • Organizer
      日本耳科学会総会・学術講演会
    • Related Report
      2020 Research-status Report
  • [Book] 標準耳鼻咽喉科・頭頸部外科学2023

    • Author(s)
      大森孝一, 野中学 , 小島博己
    • Total Pages
      448
    • Publisher
      医学書院
    • ISBN
      9784260047654
    • Related Report
      2022 Annual Research Report
  • [Book] 症状から一発診断!耳鼻咽喉科専門医はこう見立てる2022

    • Author(s)
      村上信五, 蒲谷嘉代子
    • Total Pages
      292
    • Publisher
      総合医学社
    • ISBN
      9784883784639
    • Related Report
      2022 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi