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Involvement of human lung mast cell activation through PAF receptor in severe asthma

Research Project

Project/Area Number 20790700
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field 膠原病・アレルギー・感染症内科学
Research InstitutionNational Research Institute for Child Health and Development

Principal Investigator

KAJIWARA Naoki  National Research Institute for Child Health and Development, 大学院・医学研究科, 博士研究員 (70453917)

Co-Investigator(Renkei-kenkyūsha) OKAYAMA Yoshimichi  日本大学, 大学院・医学研究科, 准教授 (80292605)
Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsマスト細胞 / 血小板活性化因子受容体 / ヒスタミン / 脱顆粒 / アレルギー / アレルギー・ぜんそく / 血小板活性化因子 / PAF
Research Abstract

In this study, we demonstrated for the first time that PAF induces histamine release from human lung mast cells but not human skin mast cells. PAF receptor on human peripheral blood-derived cultured mast cells coupled to pertussis toxin-sensitive Gi protein and activated PLC・2 and PLC・1 in response to PAF. These observations have important implications for our understanding of the mechanisms of acute allergic diseases, in particular asthma.

Report

(3 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • Research Products

    (4 results)

All 2010 2008

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (3 results)

  • [Journal Article] Activation of human mast cells through the platelet-activating factor receptor2010

    • Author(s)
      Kajiwara N, Sasaki T, Bradding P, Cruse G, Sagara H, Ohmori K, Saito H, Ra C, Okayama Y.
    • Journal Title

      J Allergy Clin Immunol 125(5)

      Pages: 1137-1145

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Presentation] Activation of platelet-activating factor receptor-coupled G・i leads to degranulation via phospholipase C・2 activation in human mast cells2008

    • Author(s)
      Okayama Y, Kajiwara N, Saito H, Ra C.
    • Organizer
      第38回日本免疫学会総会・学術集会
    • Place of Presentation
      京都
    • Year and Date
      2008-12-03
    • Related Report
      2009 Final Research Report
  • [Presentation] ヒトマスト細胞のGαiに結合したPAF受容体の活性化はPLCβ2の活性化を介 て脱顆粒を惹起する2008

    • Author(s)
      岡山吉道、梶原直樹、斎藤博久、羅智靖
    • Organizer
      第38回日本免疫学会総会・学術集会
    • Place of Presentation
      国立京都国際会館
    • Year and Date
      2008-12-03
    • Related Report
      2008 Annual Research Report
  • [Presentation] PAF causes degranulation via PLC・2 activation in human mast cells2008

    • Author(s)
      Okayama Y, Kajiwara N, Ono Y, Saito H, Ra C.
    • Organizer
      第58回日本アレルギー学会秋季学術大会
    • Place of Presentation
      東京
    • Year and Date
      2008-11-27
    • Related Report
      2009 Final Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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