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The role of CD4+CD25+T cells for immunological tolerance induction in organ transplantation

Research Project

Project/Area Number 16591248
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field General surgery
Research InstitutionThe University of Tokyo

Principal Investigator

BECK Yoshifumi  The University of Tokyo, Faculty of Medicine, Lecturer, 医学部附属病院, 講師 (70199454)

Co-Investigator(Kenkyū-buntansha) TAHARA Hideaki  The University of Tokyo, Institute of medical science, Professor, 医科学研究所, 教授 (70322071)
TAKAYAMA Takuya  The University of Tokyo, Instituteof medical science, research associate, 医科学研究所, 助手 (10332579)
Project Period (FY) 2004 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2005: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2004: ¥2,100,000 (Direct Cost: ¥2,100,000)
KeywordsHLA / regulatory T cell / CD4+CD25+ / peptide / transgenic mouse / thymus / 移植 / 免疫寛容 / HLA / CD4+CD25+T細胞 / マウス / 心移植 / 移植免疫 / CD4CD25 / 制御性T cell / FoxP3
Research Abstract

CD4+CD25+ regulatory T cells are selected in the thymus to control autoreactive thymic escapees preventing autoimmunity that can not be achieved by negative selection or deletion alone, thus playing an important role in the maintenance of immunological homeostasis. Not only significant in preventing autoimmunity, CD4+CD25+ regulatory T cells have also been shown to be involved in allograft tolerance in organ transplantation. Recent studies suggest that Foxp3, which encodes Scurfin, a member of the forkhead family of transcriptional regulators, is the key regulatory gene for the development of CD4+CD25+ regulatory T cells. We have formerly introduced two lines of HLA class I transgenic mice valuable to elucidate the role of HLA class I molecules in transplantation biology. Here, using a heterotopic cardiac transplantation model, we show that intrathymic inoculation of donor HLA class I derived synthetic peptide results in elevation of Foxp3 level in graft infiltrating lymphocytes and acceptance of the vascularized allograft. In addition, we demonstrate by adoptive transfer experiments that CD4+CD25+ regulatory T cells obtained following intrathymic inoculation of the synthetic peptide effectively induce graft specific tolerance without preconditioning of the recipient or use of additional immunosuppressive drugs. The study provides evidence suggestive of novel therapeutic option with CD4+CD25+ applicable to clinical transplantation.

Report

(3 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • Research Products

    (10 results)

All 2007 2006 2005 Other

All Journal Article (10 results)

  • [Journal Article] A long-term survivor of metastatic acjnar cell carcinoma.2007

    • Author(s)
      Hashimoto M
    • Journal Title

      Pancreas 34(2)

      Pages: 271-2

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] A long-term survivor of metastatic acinar cell carcinoma.2007

    • Author(s)
      Hashimoto M, et al.
    • Journal Title

      Pancreas. 34(2)

      Pages: 271-2

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Magnetic resonance findings of bile duct adenoma with calcification.2006

    • Author(s)
      Maeda E
    • Journal Title

      Radiat Med. 24(6)

      Pages: 459-62

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Magnetic resonance findings of bile duct adenoma with calcification.2006

    • Author(s)
      Maeda E, et al.
    • Journal Title

      Radiat Med. 24(6)

      Pages: 459-62

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Intrathymic inoculation of donor HLA class I-derived peptide generates donor-specific CD4+CD25+ regulatory T cells2005

    • Author(s)
      Tamura S
    • Journal Title

      Transplantation Proceedings 37(1)

      Pages: 40-42

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] A model of prediction system for adverse cardiovascular reactions by calcineurin inhibitors among patients with renal transplants using gene-based single-nucleotjde polymorphisms.2005

    • Author(s)
      Mushiroda T
    • Journal Title

      J Hum Genet. 50(9)

      Pages: 442-7

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] A model of prediction system for adverse cardiovascular reactions by calcineurin inhibitors among patients with renal transplants using gene-based single-nucleotide polymorphisms.2005

    • Author(s)
      Mushiroda T, et al.
    • Journal Title

      J Hum Genet. 50(9)

      Pages: 442-7

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Intrathymic inoculation of donor HLA class I-derived peptide generates donor-specific CD4+CD25+ regulatory T cells.2005

    • Author(s)
      Tamura S, et al.
    • Journal Title

      Transplant Proc. 37(1)

      Pages: 40-2

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Intrathymic inoculation of donor HLA class I-derived peptide generates donor-specific CD4+CD25+ regulatory T cells.2005

    • Author(s)
      Tamura S, Beck Y, et al.
    • Journal Title

      Transplantation Proceedings 37(1)

      Pages: 40-42

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Intrathymic Inoculation of Donor HLA Class-1 derived Peptide Generates Donor-Specific CD4+CD25+ regulatory T cells.

    • Author(s)
      S.Tamura, Y.Beck, Y.Ando, H.Tahara
    • Journal Title

      Transplantation Proc (In press)

    • Related Report
      2004 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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