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The investigation of the pathogenic significance of the antimicrobial peptide, defensin, in the pulmonary diseases in vitro and in vivo

Research Project

Project/Area Number 18790534
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Respiratory organ internal medicine
Research InstitutionThe University of Tokyo

Principal Investigator

YAMAGUCHI Yasuhiro  The University of Tokyo, 医学部附属病院, 助教 (60376473)

Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥2,710,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2007: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2006: ¥1,100,000 (Direct Cost: ¥1,100,000)
Keywords免疫学 / 応用動物 / 炎症 / ディフェンシン / 老人肺 / 肺気腫 / エラスターゼ / 抗腫瘍作用 / 筋ジストロフィー / NF-κB / neural cell adhesion molecule / アポトーシス / 老化
Research Abstract

マウスβ-defensin-6過剰発現マウスにおいて、骨格筋線維の変性、再生の所見が認められた。当該マウスは、さらに、寿命の短縮、るいそう、骨密度低下、酸化ストレスの亢進など、老化の促進に相当する表現型を示した。抗菌ペプチドによる組織障害を個体レベルで明らかにした初めての研究である。抗菌ペプチドHuman β-defensin-3は、他のdefensinと比較しても、培養細胞に対して、有意に強い細胞傷害性を有した。細胞膜透過性亢進がその主要な原因と考えられ、P2受容体拮抗薬であるPPADSにより阻害された。さらに、この細胞傷害性は、抗腫瘍効果として、個体レベルでも確認された。

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (18 results)

All 2009 2008 2007 Other

All Journal Article (8 results) (of which Peer Reviewed: 5 results) Presentation (8 results) Remarks (2 results)

  • [Journal Article] Airspace Enlargement with Airway Cell Apoptosis in Klotho Mice : A Model of Aging Lung2008

    • Author(s)
      Ishii, M., Yamaguchi, Y., Yamamoto, H., Hanaoka, Y., Ouchi, Y.
    • Journal Title

      J Gerontol A Biol Sci Med Sci 63

      Pages: 1289-1298

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Airspace enlargement with airway cell apoptosis in klotho mice : a mo del of aging lung2008

    • Author(s)
      Masaki Ishii
    • Journal Title

      J Gerontol A Biol Sci Med Sci. 63

      Pages: 1289-1298

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 抗菌ペプチドdefensinのあらたな機能と病態生理学的意義2008

    • Author(s)
      山口泰弘
    • Journal Title

      医学のあゆみ 227

      Pages: 987-990

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Variation in the tumour necrosis factor-alpha gene is not associated with susceptibility to Asian COPD2008

    • Author(s)
      Shinji Teramoto
    • Journal Title

      Eur Respir J. 31

      Pages: 682-683

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Adrenomedullin insufficiency increases allergen-induced airway hyperresponsiveness in mice2007

    • Author(s)
      Yamamoto, H., Nagase, T., Shindo, T., Teramoto, S., Aoki-Nagase, T., Yamaguchi, Y, Hanaoka, Y., Kurihara, H., Ouchi, Y.
    • Journal Title

      J Appl Physiol. 102

      Pages: 2361-2368

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] β-defensin overexpression induces progressive muscle degeneration in mice2007

    • Author(s)
      Yamaguchi, Y., Nagase, T., Thmita, T. et al.
    • Journal Title

      Am J Physiol Cell Physiol 292

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] β-defensin overexpression induces progressive muscle degeneration in mice.2007

    • Author(s)
      Yasuhiro Yamaguchi
    • Journal Title

      Am J Physiol Cell Physiol. 292

      Pages: 2141-2149

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] β-defensin overexpression induces progressive muscle degeneration in mice.

    • Author(s)
      Yasuhiro Yamaguchi
    • Journal Title

      Am J Physiol Cell PhysiolAm J Physiol Cell Physiol

    • Related Report
      2006 Annual Research Report
  • [Presentation] β-ディフェンシンの過剰発現により惹起される筋線維変性と骨量低下2009

    • Author(s)
      山口泰弘, ら
    • Organizer
      第48回日本老年医学会学術集会
    • Place of Presentation
      金沢
    • Year and Date
      2009-06-09
    • Related Report
      2008 Final Research Report
  • [Presentation] β-defensin 6過剰発現マウスの肺機能評価2008

    • Author(s)
      花岡陽子,山口泰弘, ら
    • Organizer
      第48回日本呼吸器学会学術講演会
    • Place of Presentation
      神戸
    • Year and Date
      2008-06-17
    • Related Report
      2008 Final Research Report
  • [Presentation] 高濃度beta-ディフェンシンによる気道上皮由来細胞の細胞死とP2X受容体の関与2008

    • Author(s)
      山口泰弘, ら
    • Organizer
      第48回日本呼吸器学会学術講演会
    • Place of Presentation
      神戸
    • Year and Date
      2008-06-16
    • Related Report
      2008 Final Research Report
  • [Presentation] シンポジウム"細胞分子呼吸器学から臨床へ"抗菌ペプチドdefensinの新しい病態生理学的意義2008

    • Author(s)
      山口泰弘, ら
    • Organizer
      第48回日本呼吸器学会学術講演会
    • Place of Presentation
      神戸
    • Year and Date
      2008-06-16
    • Related Report
      2008 Final Research Report
  • [Presentation] 抗菌ペプチドdefensinの新しい病態生理学的意義2008

    • Author(s)
      山口泰弘
    • Organizer
      第48回日本呼吸器学会学術講演会
    • Place of Presentation
      神戸
    • Year and Date
      2008-06-16
    • Related Report
      2008 Annual Research Report
  • [Presentation] 老化モデルとしてのディフェンシン過剰発現マウスの表現型と筋障害の機序2007

    • Author(s)
      山口泰弘, ら
    • Organizer
      第49回日本老年医学会学術集会
    • Place of Presentation
      札幌
    • Year and Date
      2007-06-22
    • Related Report
      2008 Final Research Report
  • [Presentation] The Molecular Mechanism of Human β-Defensin Cytotoxic Effects on Mammalian Pulmonary Cells2007

    • Author(s)
      Yasuhiro Yamaguchi, et al.
    • Organizer
      the 2007 ATS International Conference
    • Place of Presentation
      San Francisco, California
    • Year and Date
      2007-05-21
    • Related Report
      2008 Final Research Report
  • [Presentation] The Molecular Mechanism of Human β-Defensin Cytotoxic Effects on Mammalian Pulmonary Cells2007

    • Author(s)
      Yasuhiro Yamaguchi
    • Organizer
      the 2007 ATS International Conference
    • Place of Presentation
      San Francisco
    • Year and Date
      2007-05-21
    • Related Report
      2007 Annual Research Report
  • [Remarks] 2007年度日本呼吸器学会学会奨励賞受賞

    • Related Report
      2008 Final Research Report
  • [Remarks] 2006年度財団法人長寿科学振興財団 若手研究者奨励賞 受賞

    • Related Report
      2008 Final Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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