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間質性膀胱炎の膀胱上皮障害に対するサイモシンβ4を用いた治療

Research Project

Project/Area Number 24592440
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Urology
Research InstitutionKawasaki Medical School

Principal Investigator

横山 光彦  川崎医科大学, 医学部, 講師 (40325113)

Co-Investigator(Kenkyū-buntansha) 福元 和彦  川崎医科大学, 医学部, 助教 (90584920)
Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Discontinued (Fiscal Year 2012)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords細胞・組織 / 間質性膀胱炎
Research Abstract

当該研究では、ICモデルの確立とThymosinβ4の発現ならびに膀胱上皮障害との関連につき以下点を明らかにした。まず、ラット膀胱内にPS、HClを注入またCYPを腹腔内に投与することでICモデルラットを作成、組織中のThymosinβ4と膀胱機能との関連につき、in vivoでの検討を行った。雌性Wistarラットを用いてCYP200mg/kgを腹腔内に単回投与(急性間質炎症モデル)、CYP75mg/kgを1,3,5,7日の4回投与(慢性間質炎症モデル)の間質の炎症が中心のICモデルを作成した。同じくPS 10mg/0.2mlを雌性Wistarラットの膀胱内にPE50チューブを用いて10分間注入を行った(上皮障害型モデル)。0.4NHCl 0.2mlをラット膀胱に30秒注入した(上皮障害+間質炎症型モデル)
CYP投与による急性期モデルでは2日後、慢性期モデルでは9日後、上皮障害モデル、上皮障害+間質炎症型モデルでは翌日に膀胱を摘出し、膀胱上皮の形態学的な評価を行った。HE染色、走査電顕、各種免疫染色を用い、膀胱上皮細胞の配列、プラーク形成、粘膜下層の厚み、粘膜下層や筋層への炎症細胞浸潤を評価した。ICモデルラットをウレタン麻酔下に膀胱内圧測定を行い、コントロールと比べそれぞれのモデルがコントロールに比べ排尿間隔の減少を確認した。今後、ラット膀胱上皮、間質細胞、筋層でのThymosinβ4の発現をコントロールラットおよび種々のICモデルで比較検討を行う予定であったが、一身上の都合により、当施設を辞することとなり、今後の研究継続が困難となり、科学研究費の継続を廃止することとなった。

Report

(2 results)
  • 2013 Annual Research Report
  • 2012 Research-status Report
  • Research Products

    (10 results)

All 2013 2012 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (5 results) (of which Invited: 1 results)

  • [Journal Article] Long-term safety and efficacy of two different antimuscarinics, imidafenacine and solifenacin, for treatment of overactive bladder: A prospective randomized controlled study.2013

    • Author(s)
      Yokoyama T
    • Journal Title

      Urol Int

      Volume: 90 Pages: 161-167

    • Related Report
      2013 Annual Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Twelve months follow up of injection of onabotulinumtoxinA into vesical submucosa for refractory non-neurogenic overactive bladder.2013

    • Author(s)
      Okamura K
    • Journal Title

      LUTS

      Volume: 5 Pages: 55-59

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparison of two different alpha1-adrenoceptor antagonists, tamsulosin hydrochloride and silodosin, in the treatment of male lower urinary tract symptoms suggestive of benign prostatic hyperplasia: A prospective randomized crossover study.2012

    • Author(s)
      Yokoyama T, Hara R, Fukumoto K, Fujii T, Jo Y, Miyaji Y, Nagai A
    • Journal Title

      LUTS

      Volume: 14 Issue: 1 Pages: 14-18

    • DOI

      10.1111/j.1757-5672.2011.00099.x

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Botulinum toxin type A for the treatment of lower urinary tract disorders2012

    • Author(s)
      Teruhiko Yokoyama
    • Journal Title

      Int.J.Urol.

      Volume: 19 Issue: 3 Pages: 202-215

    • DOI

      10.1111/j.1442-2042.2011.02946.x

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Intraprostatic botulinum neurotoxin type A injection for benign prostatic hyperplasia: Preliminary results with a newly developed purified toxin.2012

    • Author(s)
      Yokoyama T, Yamamoto Y, Suzuki T, Oguam K, Nagai A.
    • Journal Title

      Acta Med Okayama

      Volume: 66 Pages: 291-297

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] Investigation of histological feature and bladder function in rat interstitial cystitis model.2013

    • Author(s)
      Yokoyama T, Fukumoto K, Miyaji Y, Nagai A.
    • Organizer
      Advancements in Urology 2013 an AUA/JUA Symposium
    • Place of Presentation
      Cosmopolitan Las Vegas (Las Vegas USA)
    • Related Report
      2012 Research-status Report
  • [Presentation] 間質性膀胱炎患者における膀胱上皮細胞の障害と自覚症状との相関―走査電顕での検討2012

    • Author(s)
      横山光彦、大平伸、大畑絢、藤田雅一郎、福元和彦、月森翔平、藤井智浩、常義政、宮地禎幸、永井敦、秋山隆、濱崎周次
    • Organizer
      第100回日本泌尿器科学会総会
    • Place of Presentation
      パシフィコ横浜(横浜市)
    • Related Report
      2012 Research-status Report
  • [Presentation] Correlation with urinary epithelium and primary symptoms in interstitial cystitis: investigation of scanning electron microscopy.2012

    • Author(s)
      Yokoyama T, Fukumoto K, Miiyaji Y, Nagai A.
    • Organizer
      America Urological Meeting
    • Place of Presentation
      Geogia World Congress Center (Atlanta USA)
    • Related Report
      2012 Research-status Report
  • [Presentation] Correlation of urinary oxidant stress marker level with the response of antimuscarinic therapy in patients with female overactive bladder.

    • Author(s)
      Yokoyama T, et al.
    • Organizer
      2013 Annual Meeting of the American Urological Association
    • Place of Presentation
      San Diago
    • Related Report
      2013 Annual Research Report
  • [Presentation] Correlation between lower urinary tract symptoms and sexual functions after alpha-1 blockers in men with benigh prostatic hyperplasia.

    • Author(s)
      Yokoyama T, et al.
    • Organizer
      2013 Asia Pacific Symposium Sexual medicine
    • Place of Presentation
      Kanazawa
    • Related Report
      2013 Annual Research Report
    • Invited

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Published: 2013-05-31   Modified: 2019-07-29  

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