• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

TNFアルファによるランゲルハンス細胞の機能修飾

Research Project

Project/Area Number 18790811
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Dermatology
Research InstitutionThe University of Tokyo

Principal Investigator

多田 弥生  The University of Tokyo, 医学部附属病院, 助教 (00334409)

Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 2007: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2006: ¥1,400,000 (Direct Cost: ¥1,400,000)
Keywords樹状細胞 / TNF-アルファ
Research Abstract

TNF-alphaによるLCの修飾が免疫応答に果たす役割を解明することを本年は主眼においた。まず、LCがBALB/c由来であるため、同じくBALB/c backgroundでOVA(323-339)特異的TCRを発現させたOVA-specific TCR transgenic mice (J. Immunol. 159: 4484, 1997)を入手した。このmiceを用いてLCのTNF-alpha存在下でのTh1,Th2誘導について検討した。具体的には、(a)LCをTNF-alphaまたはTNF-alpha+IL-10中和抗体、OVA peptide(323-339)存在下で培養後、(b)transgenic mice由来のCD4+CD62LhighのNaive T細胞と共培養し、T細胞から分泌されたIL-2,IL-4,IFN-gを測定し、IL-4(Th2系)とIFN-g (Th1系)産生のバランスを検討した。抗原特異性をみるために、OVA+LC+T cellの群の他に、KLH+LC+T cell,OVA+T cellの群でも同様の実験を行った。その結果、予想通り、OVA+LC+T cellの群においてのみ、T cel1の活性化が認められ、IL-2の上清中への分泌があった。この実験を3回以上施行したところ、全体の傾向として、TNF-alpha刺激群ではTh1優位の反応を示した。しかし、IL-10中和抗体はこの傾向をさらに強めることはなく、少なくともin vitroの結果においてはTNF-alphaの刺激に伴うLCのIL-10産生はTh1,Th2のバランスを変える程の意味付けは難しいと思われた。ただ、in vitroの実験のみでは、LCのmigrationへの影響はみれていないため、今後はin vivoでの検討を引き続き行う予定である。

Report

(2 results)
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (6 results)

All 2007 2006

All Journal Article (5 results) (of which Peer Reviewed: 3 results) Presentation (1 results)

  • [Journal Article] IL-18 enhances IFN-gamma-induced production of CXCL9, CXCL10, and CXCL11 in human keratinocytes.2007

    • Author(s)
      Kanda N, Tada Y, et. al.
    • Journal Title

      European Journal of Immunology 37

      Pages: 338-350

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Early inflammatory changes in the "perilesional skin" of psoriatic plaques: is there interaction between dendritic cells and keratinocytes?2007

    • Author(s)
      Komine M, Tada Y, et. al.
    • Journal Title

      Journal of Investigative Dermatology 127

      Pages: 1915-1922

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Increased serum levels of a proliferation-inducing ligand in patients with bullous pemphigoid.2007

    • Author(s)
      Watanabe R, Tada Y, et. al.
    • Journal Title

      Journal of Dermatological Science 46

      Pages: 53-60

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identification and characterization of endogenous Langerin ligands in murine extracellular matrix2006

    • Author(s)
      Tada Y et al.
    • Journal Title

      Journal of Investigative Dermatology 126

      Pages: 1549-1558

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Interleukin 12 production by monocytes from patients with psoriasis and its inhibition by ciclosporin A2006

    • Author(s)
      Tada Y et al.
    • Journal Title

      British Journal of Dermatology 154

      Pages: 1180-1183

    • Related Report
      2006 Annual Research Report
  • [Presentation] Mouse epidermal keratinocytes express Sema4D/CD100 and its receptor CD72 is expressed on Langerhans cells.2007

    • Author(s)
      Shimizu T, Tada Y, et. al.
    • Organizer
      10th International Workshop on Langerhans cells.
    • Place of Presentation
      Bern, Switzerland.
    • Related Report
      2007 Annual Research Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi