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2015 Fiscal Year Annual Research Report

ヒト膀胱平滑筋細胞の不死化に関する研究

Research Project

Project/Area Number 25462531
Research InstitutionNational Center for Geriatrics and Gerontology

Principal Investigator

吉田 正貴  国立研究開発法人国立長寿医療研究センター, 手術・集中治療部, 部長 (20201858)

Co-Investigator(Kenkyū-buntansha) 橋本 有弘  国立研究開発法人国立長寿医療研究センター, 再生再建医学研究部, 部長 (00208456)
Project Period (FY) 2013-04-01 – 2016-03-31
Keywords膀胱平滑筋 / 不死化細胞 / 下部尿路機能障害 / 尿失禁 / 低活動膀胱 / 再生医療
Outline of Annual Research Achievements

膀胱平滑筋細胞は尿の保持および排泄機能を維持するうえで重要な細胞で、この細胞の機能不全は膀胱の刺激状態(過活動膀胱)や排尿筋の収縮不全(低活動膀胱)を引き起こす、特に低活動膀胱では排尿筋収縮能は改善が難しく、収縮能を補うような薬剤の開発も遅れている。ヒト膀胱平滑筋不死化を行うことで、膀胱平滑筋の再生が可能となり、低活動膀胱の治療法として有効と考えられる。
我々は市販のヒト膀胱平滑筋細胞を用いて培養条件の検討を行ってきた結果、CDK4R24, Cyclin D1, hTERTの3遺伝子を、レンチウィルスベクターを使って初代培養膀胱平滑筋細胞に導入したところ、population doublingsが50を超えるまで増殖を続けることを確認した。この細胞の特長を示す。1)細胞分裂の速さは20時間以内と非常に速く、分化条件下では増殖停止する細胞およびゆっくり増殖する細胞が多くなる。2)培養9-12日で細胞は、紡錘型となりアクチン線維が発達する。3)αSMA, γSMA, Calponinの発現は、分化培養下で増大する。4)増殖培地中ではアクチンストレス線維が形成されるが、構成アクチンは、βCYA(cytoplasmic actin)が主体。5)分化培地中では、アクチン線維が発達し、構成アクチンはαSMAが主になる。6)AChR(M2)は、分化未分化状態とも、大量に発現しているが、AChR(M3)は少ない。7)カルシウムイオノフォアA23187 5 μMによって細胞は急速に縮む。8)90mM KCl による、電位依存性カルシウムチャンネルの開口により細胞内Ca濃度が上昇する。9)Connexin43は細胞接触部位に分布しており、Gap junctionを形成していると思われる。
この不死化細胞は障害を受けた膀胱平滑筋細胞の再生医療や排尿障害の新たな薬剤の開発に寄与するものと考えられる。

  • Research Products

    (20 results)

All 2016 2015

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

  • [Journal Article] Effect of Naftopidil on Bladder Microcirculation in a Rat Model of Bladder Outlet Obstruction, Low Urin Tract Symptoms2016

    • Author(s)
      Majima T, Yamamoto T, Funahashi Y, Talkai S, Yoshihisa Matsukawa Y, Yoshida M, Momokazu Goto M.
    • Journal Title

      Low Urin Tract Symptoms

      Volume: in press Pages: in press

    • DOI

      10.1111/luts.12119

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Frontal white matter hyperintensity predicts lower urinary tract dysfunction in older adults with amnestic mild cognitive impairment and Alzheimer’s disease.2016

    • Author(s)
      Ogama N, Yoshida M, Nakai T, Niida S, Toba K and Sakurai T.
    • Journal Title

      Geriatr Gerontol Int

      Volume: 16 Pages: 167-74

    • DOI

      10.1111/ggi.12447. Epub 2015 Jan 22.

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Staurosporine allows dystrophin expression by skipping of nonsense-encoding exon.2016

    • Author(s)
      Nishida A, Oda A, Takeuchi A, Lee T, Awano H, Hashimoto N, Takeshima Y, Matsuo M.
    • Journal Title

      Brain Dev.

      Volume: in press Pages: in press

    • DOI

      10.1016/j.braindev.2016.03.003.

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Cancer cachexia causes skeletal muscle damage via transient receptor potential vanilloid 2-independent mechanisms, unlike muscular dystrophy2016

    • Author(s)
      Iwata Y, Suzuki N, Ohtake H, Kamauchi S, Hashimoto N, Kiyono T, Wakabayashi S
    • Journal Title

      Journal of Cachexia, Sarcopenia and Muscle

      Volume: in press Pages: in press

    • DOI

      10.1002/jcsm.12067

    • Peer Reviewed / Open Access
  • [Journal Article] Burden of benign prostatic hyperplasia among men in Japan: Patient-reported outcomes among those diagnosed and experiencing symptoms2015

    • Author(s)
      Yoshida M; Flores, Natalia M.; Vietri, Jeffrey; Lee, Matthew; Murakami, Masahiro
    • Journal Title

      Int J Urol

      Volume: 22 Pages: 949-955

    • DOI

      10.1111/iju.12849. Epub 2015 Jul 2.

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Safety and efficacy of mirabegron as add-on therapy in patients with overactive bladder treated with solifenacin: a postmarketing, open-label study in Japan (MILAI study).2015

    • Author(s)
      Yamaguchi O, Kakizaki H, Homma Y, Igawa Y, Takeda M, Nishizawa O, Gotoh M, Yoshida M, Yokoyama O, Seki N, Okitsu A, Hamada T, Kobayashi A, Kuroishi K.
    • Journal Title

      BJU Int.

      Volume: 116 Pages: 612-22

    • DOI

      10.1111/bju.13068. Epub 2015 Apr 23.

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Tadalafil 5mg once daily for the treatment of Asian men with lower urinary tract symptoms secondary to benign prostatic hyperplasia: analyses of data pooled from three randomized, double-blind, placebo-controlled studies. allows dystrophin expression by skipping of nonsense-encoding exon.2015

    • Author(s)
      Nishizawa O, Yoshida M, Takeda M, Yokoyama O, Morisaki Y, Murakami M, Viktrup L.
    • Journal Title

      Int J Urol

      Volume: 22 Pages: 378-384

    • DOI

      10.1111/iju.12699. Epub 2015 Feb 24.

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Pro-Insulin-Like Growth Factor-II Ameliorates Age-Related Inefficient Regenerative Response by Orchestrating Self-Reinforcement Mechanism of Muscle Regeneration.2015

    • Author(s)
      Ikemoto-Uezumi M, Uezumi A, Tsuchida K, Fukada S, Yamamoto H, Yamamoto N, Shiomi K, Hashimoto N.
    • Journal Title

      Stem Cells.

      Volume: 33 Pages: 2456-68

    • DOI

      10.1002/stem.2045. Epub 2015 May 26.

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Doublecortin marks a new population of transiently amplifying muscle progenitor cells and is required for myofiber maturation during skeletal muscle regeneration.2015

    • Author(s)
      Ogawa R, Ma Y, Yamaguchi M, Ito T, Watanabe Y, Ohtani T, Murakami S, Uchida S, De Gaspari P, Uezumi A, Nakamura M, Miyagoe-Suzuki Y, Tsujikawa K, Hashimoto N, Braun T, Tanaka T, Takeda S, Yamamoto H, Fukada S.
    • Journal Title

      Development.

      Volume: 142 Pages: 51-61

    • DOI

      10.1242/dev.112557. Epub 2014 Dec 5.

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 骨格筋幹細胞2015

    • Author(s)
      橋本有弘
    • Journal Title

      日本臨床

      Volume: 73 Pages: 238-242

    • Open Access
  • [Presentation] Mirabegron improves nocturia and nocturia associated QOL and sleep quality2016

    • Author(s)
      Yoshida M, Gotoh M, Kageyama K, Kato K, Matsukawa M, Marushima M, abd Study group of N-QOL
    • Organizer
      30th Annual EAU Congress
    • Place of Presentation
      Munich, Germany
    • Year and Date
      2016-03-13
    • Int'l Joint Research
  • [Presentation] 高齢者由来ヒト筋前駆細胞(筋芽細胞)の細胞増殖特性2015

    • Author(s)
      大久保咲、橋本有弘
    • Organizer
      第38回日本分子生物学会年会
    • Place of Presentation
      神戸
    • Year and Date
      2015-12-03
  • [Presentation] 酸化ストレスによってマウス筋前駆細胞(筋芽細胞)に誘導されるMitotic Catastrophe2015

    • Author(s)
      橋本有弘、大久保咲、倉谷麻依
    • Organizer
      第38回日本分子生物学会年会
    • Place of Presentation
      神戸
    • Year and Date
      2015-12-02
  • [Presentation] 血中DNAのメチル化を指標としたアルツハイマー病早期診断法の開発2015

    • Author(s)
      坂口和弥、新飯田俊平、橋本有弘、下田修義
    • Organizer
      第38回日本分子生物学会年会
    • Place of Presentation
      神戸
    • Year and Date
      2015-12-02
  • [Presentation] Frontal white matter hyperintensity predicts lower urinary tract dysfunction in elderly with amnestic mild cognitive impairment and alzheimer disease.2015

    • Author(s)
      Yoshida M, Ogama N, Nakai T, Niida S, Toba K, Sakurai T
    • Organizer
      International Continence Society 45th Annual Meeting
    • Place of Presentation
      Montrial, Canada
    • Year and Date
      2015-10-08
    • Int'l Joint Research
  • [Presentation] The effect of silodosin on the prostatic microcirculation in a prostatitis rat model induced by urine reflux.2015

    • Author(s)
      Funahashi Y, Yoshida M, Yamamoto T, Matsukawa Y, Majima T, Gotoh M
    • Organizer
      InInternational Continence Society 45th Annual Meeting
    • Place of Presentation
      Montrial, Canada
    • Year and Date
      2015-10-07
    • Int'l Joint Research
  • [Presentation] Development of new nomograms of urinary flow rates in Japanese men.2015

    • Author(s)
      Yoshida M, Otani M, Miyamoto Y, Kudo J, Yamaguchi O
    • Organizer
      International Continence Society 45th Annual Meeting
    • Place of Presentation
      Montrial, Canada
    • Year and Date
      2015-10-07
    • Int'l Joint Research
  • [Presentation] 尿逆流性前立腺炎モデルにおけるシロドシンの微小循環改善効果2015

    • Author(s)
      舟橋康人、吉田正貴、山本徳則、加藤真貴子、松川宜久、馬嶋 剛、後藤百万
    • Organizer
      第22回日本排尿機能学会
    • Place of Presentation
      札幌
    • Year and Date
      2015-09-10
  • [Presentation] 酸化ストレスによるマウス筋前駆細胞(筋芽細胞)の細胞増殖抑制機構2015

    • Author(s)
      橋本 有弘、倉谷 麻衣、大久保 咲
    • Organizer
      日本筋学会第1回学術集会
    • Place of Presentation
      東京
    • Year and Date
      2015-08-08
  • [Presentation] Pro-IGF-IIの補充は老化筋再生不良を改善させる2015

    • Author(s)
      上住 円、上住聡芳、土田邦博、深田宗一朗、橋本有弘
    • Organizer
      日本筋学会第1回学術集会
    • Place of Presentation
      東京
    • Year and Date
      2015-08-08

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Published: 2017-01-06  

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