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Functions of bladder muscularis mucosae during storage phase as a new therapeutic target

Research Project

Project/Area Number 17K11187
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Urology
Research InstitutionNagoya City University

Principal Investigator

Hashitani Hikaru  名古屋市立大学, 医薬学総合研究院(医学), 教授 (10315905)

Co-Investigator(Kenkyū-buntansha) 西川 信之  名古屋市立大学, 医薬学総合研究院(医学), 研究員 (30722748)
三井 烈  名古屋市立大学, 医薬学総合研究院(医学), 講師 (90434092)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords粘膜筋板 / 排尿筋 / 過活動膀胱 / アンジオテンシン / NO神経 / 自発収縮 / 膀胱 / 粘膜 / 細動脈 / ペリサイト / 交感神経 / PDGFRα / 微小血管 / 平滑筋 / 活動電位 / 細胞内カルシウム / カルシウム感受性 / 収縮特性 / 粘膜血流
Outline of Final Research Achievements

Contractile properties of muscularis mucosae (MM), the predominant contractile element in the bladder mucosa, was compared with those of detrusor smooth muscle (DSM). MM develops vigorous spontaneous phasic contractions arising from bursting action potential firing but modestly responds to the excitatory, cholinergic innervation, suggesting that it play its major role during storage rather than voiding phase. Unlike DSM lacking inhibitory innervation, MM receives the inhibitory nitrergic innervation. MM also exhibits a much greater sensitivity to angiotensin II (ATII) than DSM that could well sense circulating concentration of ATII, suggesting that MM is the predominant target of contractile actions of ATII in the bladder. The MM contractility appears to be diminished by as yet unidentified substance released from the urothelium. The contractile properties of MM could be a novel therapeutic target in the treatment of overactive bladder.

Academic Significance and Societal Importance of the Research Achievements

過活動膀胱は、加齢やメタボリック症候群にともない発症が増加するが、その病態は十分に解明されていない。膀胱には排尿時の収縮を担う排尿筋に加えて粘膜筋板が存在するが、その役割は排尿時ではなく蓄尿時において重要であると考えられる。粘膜筋板は、血中濃度でも収縮応答する高いアンジオテンシン(ATII)感受性を有し、ATIIが増加する病態での過活動膀胱発症に関わっている可能性がある。粘膜筋板の収縮特性には排尿筋との違いが認められ、排尿時の膀胱収縮を抑制しない新たな治療標的となる可能性が示された。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (39 results)

All 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (10 results) Journal Article (14 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 14 results,  Open Access: 1 results) Presentation (14 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results) Remarks (1 results)

  • [Int'l Joint Research] ボンド大学/モナッシュ大学/ニューカッスル大学(オーストリア)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] ブリストル大学(英国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] ネバダ大学(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] ボンド大学/モナッシュ大学/ニューキャッスル大学(オーストリア)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] ブリストル大学/ロンドン大学/オックスフォード大学(英国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] ネバダ大学(米国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] ボンド大学(オーストラリア)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] ブリストル大学(英国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] ブリストル大学(英国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] ボンド大学(オーストラリア)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Nitric oxide‐mediated signal transmission in bladder vasculature underlies the therapeutic actions of PDE5 inhibitors in the rat2021

    • Author(s)
      Tanaka Hidekazu、Mitsui Retsu、Oishi Mitsuhiro、Passlick Stefan、Jabs Ronald、Steinh?user Christian、Tanaka Kenji F.、Hashitani Hikaru
    • Journal Title

      British Journal of Pharmacology

      Volume: 178 Issue: 5 Pages: 1073-1094

    • DOI

      10.1111/bph.15342

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Comparative effects of angiotensin II on the contractility of muscularis mucosae and detrusor in the pig urinary bladder2020

    • Author(s)
      Lim Iris、Mitsui Retsu、Kameda Masashi、Sellers Donna Jayne、Chess‐Williams Russ、Hashitani Hikaru
    • Journal Title

      Neurourology and Urodynamics

      Volume: 40 Issue: 1 Pages: 102-111

    • DOI

      10.1002/nau.24548

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Functional heterogeneity of PDGFRα (+) cells in spontaneously active urogenital tissues2020

    • Author(s)
      Hashitani Hikaru、Mitsui Retsu、Lang Richard
    • Journal Title

      Neurourology and Urodynamics

      Volume: 39 Issue: 6 Pages: 1667-1678

    • DOI

      10.1002/nau.24431

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] ATYPICAL or INTERSTITIAL, take your PIC2020

    • Author(s)
      Hashitani H, Lang RJ.
    • Journal Title

      J Physiol

      Volume: 598 Issue: 15 Pages: 3061-3062

    • DOI

      10.1113/jp280080

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Are oxidative stress and ischemia significant causes of bladder damage leading to lower urinary tract dysfunction? Report from the ICI‐RS 20192020

    • Author(s)
      Speich John E.、Tarcan Tufan、Hashitani Hikaru、Vahabi Bahareh、McCloskey Karen D.、Andersson Karl‐Erik、Wein Alan J.、Birder Lori A.
    • Journal Title

      Neurourology and Urodynamics

      Volume: 39 Issue: S3

    • DOI

      10.1002/nau.24313

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Norepinephrine Has Dual Effects on Human Colonic Contractions Through Distinct Subtypes of Alpha 1 Adrenoceptors2020

    • Author(s)
      Kurahashi Masaaki、Kito Yoshihiko、Hara Masayasu、Takeyama Hiromitsu、Sanders Kenton M.、Hashitani Hikaru
    • Journal Title

      Cellular and Molecular Gastroenterology and Hepatology

      Volume: 10 Issue: 3 Pages: 658-671.e1

    • DOI

      10.1016/j.jcmgh.2020.04.015

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] New targets for overactive bladder?ICI‐RS 21092020

    • Author(s)
      Fry Christopher Henry、Chakrabarty Basu、Hashitani Hikaru、Andersson Karl‐Erik、McCloskey Karen、Jabr Rita?I.、Drake Marcus J.
    • Journal Title

      Neurourology and Urodynamics

      Volume: 39 Issue: S3

    • DOI

      10.1002/nau.24228

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Contractile elements and their sympathetic regulations in the pig urinary bladder: a species and regional comparative study.2020

    • Author(s)
      Mitsui R, Lee K, Uchiyama A, Hayakawa S, Kinoshita F, Kajioka S, Eto M, Hashitani H.
    • Journal Title

      Cell Tissue Res.

      Volume: 379 Issue: 2 Pages: 373-387

    • DOI

      10.1007/s00441-019-03088-6

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Synchrony of spontaneous Ca<sup>2+</sup> activity in microvascular mural cells2020

    • Author(s)
      Mitsui Retsu、Hashitani Hikaru
    • Journal Title

      Journal of Smooth Muscle Research

      Volume: 56 Issue: 0 Pages: 1-18

    • DOI

      10.1540/jsmr.56.1

    • NAID

      130007828691

    • ISSN
      0916-8737, 1884-8796
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Role of Pericytes in the?Initiation and Propagation of Spontaneous Activity in the?Microvasculature2019

    • Author(s)
      Hashitani Hikaru、Mitsui Retsu
    • Journal Title

      Adv Exp Med Biol.

      Volume: 1124 Pages: 329-356

    • DOI

      10.1007/978-981-13-5895-1_14

    • ISBN
      9789811358944, 9789811358951
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Properties of SK3 channel-expressing PDGFRα (+) cells in the rodent urinary bladder2019

    • Author(s)
      Hayashi Tokumasa、Hashitani Hikaru、Takeya Mitsue、Uemura Kei-ichiro、Nakamura Kei-ichiro、Igawa Tsukasa
    • Journal Title

      European Journal of Pharmacology

      Volume: 860 Pages: 172552-172552

    • DOI

      10.1016/j.ejphar.2019.172552

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Role of capillary pericytes in the integration of spontaneous Ca2+ transients in the suburothelial microvasculature in situ of the mouse bladder2018

    • Author(s)
      Hashitani H, Mitsui R, Miwa-Nishimura K, Lam M
    • Journal Title

      The Journal of Physiology

      Volume: 596 Issue: 16 Pages: 3531-3552

    • DOI

      10.1113/jp275845

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] What are the origins and relevance of spontaneous bladder contractions? ICI-RS 20172018

    • Author(s)
      Drake Marcus J.、Fry Christopher H.、Hashitani Hikaru、Kirschner-Hermanns Ruth、Rahnama'i Mohammad S.、Speich John E.、Tomoe Hikaru、Kanai Anthony J.、McCloskey Karen D.
    • Journal Title

      Neurourology and Urodynamics

      Volume: 印刷中 Issue: S4

    • DOI

      10.1002/nau.23485

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Role of K + channels in regulating spontaneous activity in the muscularis mucosae of guinea pig bladder2018

    • Author(s)
      Lee Ken、Isogai Ayu、Antoh Minori、Kajioka Shunichi、Eto Masatoshi、Hashitani Hikaru
    • Journal Title

      European Journal of Pharmacology

      Volume: 818 Pages: 30-37

    • DOI

      10.1016/j.ejphar.2017.10.024

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 膀胱細動脈における神経性 NO シグナル伝達に対する PDE5 阻害薬の作用2020

    • Author(s)
      田中 秀和、三井 烈、橋谷 光
    • Organizer
      第27回日本排尿機能学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ブタ膀胱の粘膜筋板と排尿筋におけるアンジオテンシン II 収縮の比較2020

    • Author(s)
      橋谷 光、アイリス リム、三井 烈、ドナ セラーズ、 ラス チェスウイリアムス
    • Organizer
      第27回日本排尿機能学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Lamina propria ~The site of function and disorder of the bladder?~2020

    • Author(s)
      Hikaru Hashitani
    • Organizer
      Advances in Urogenital and Gut Research Symposium
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 機械的刺激は感覚神経性 CGRP を介して腎盂自発収縮を制御する2019

    • Author(s)
      吉川未花子、高野博充、橋谷光
    • Organizer
      第26回日本排尿機能学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 尿路および男性生殖器における PDGFRα陽性細胞の多様性2019

    • Author(s)
      橋谷光、三井烈、西川信之、Lang Richard
    • Organizer
      第26回日本排尿機能学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 精のうの自発収縮における上皮下同期性間質細胞の役割2019

    • Author(s)
      武谷三恵、橋谷光、中村桂一郎、東龍平、林篤正、鷹野誠
    • Organizer
      第61回日本平滑筋学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] 橋谷光、三井烈、ラング リチャード2019

    • Author(s)
      尿路および男性生殖器における PDGFRα陽性細胞の多様性
    • Organizer
      第61回日本平滑筋学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] The heterogeneity of PDGFRα cells in the uro-genital system2019

    • Author(s)
      Hikaru Hashitani
    • Organizer
      Second meeting of the Lower Urinary Tract Science Group
    • Related Report
      2019 Research-status Report
  • [Presentation] Regulatory mechanisms underlying the contractility of intra-organ microvasculature2019

    • Author(s)
      Hikaru Hashitani, Retsu Mitsui
    • Organizer
      The 9th Federation of Asian and Oceanian Physiological Societies Congress (FAOPS2019)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 膀胱壁の収縮要素と抑制性神経についての再考2018

    • Author(s)
      橋谷 光、三井 烈、李 賢、梶岡 俊一、江藤 正俊
    • Organizer
      第25回日本排尿機能学会
    • Related Report
      2018 Research-status Report
  • [Presentation] Re-evaluation of the bladder wall; muscularis mucosae and sympathetic nerves2018

    • Author(s)
      Hikaru Hashitani
    • Organizer
      The scientific basis of urology (The ICI-RS2018 Pre-meeting)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 膀胱壁における収縮要素と交感神経支配の再考2018

    • Author(s)
      橋谷 光、三井 烈、李 賢、梶岡 俊一
    • Organizer
      第60回日本平滑筋学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] 粘膜の収縮要素の機能特性 ( Properties of contractile elements in the mucosa )2017

    • Author(s)
      橋谷 光
    • Organizer
      第24回日本排尿機能学会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Functional properties of muscularis mucosae in the bladder2017

    • Author(s)
      李 賢
    • Organizer
      第69回西日本泌尿器科学会総会
    • Related Report
      2017 Research-status Report
  • [Remarks]

    • URL

      https://bond.edu.au/researchers/research-strengths/faculty-research-centres/centre-urology-research-cur

    • Related Report
      2019 Research-status Report

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Published: 2017-04-28   Modified: 2022-01-27  

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