Induction of kidney graft tplerance using donor-specofoc regulatory T cells
Project/Area Number |
19390414
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Urology
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Research Institution | Osaka University |
Principal Investigator |
TAKAHARA Shiro Osaka University, 医学系研究科, 寄附講座教授 (70179547)
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Co-Investigator(Kenkyū-buntansha) |
ISAKA Yoshitaka 大阪大学, 医学系研究科, 准教授 (00379166)
NASHII Ko 国立成育医療センター, 医科学研究所, 室長 (60321890)
AZUMA Haruhito 大阪医科大学, 医学系研究科, 准教授 (40231914)
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Project Period (FY) |
2007 – 2009
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Project Status |
Completed (Fiscal Year 2009)
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Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2009: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2008: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2007: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
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Keywords | 腎移植 / 免疫寛容 / 腎臓移植 / 制御性T細胞 / superagonistCD28抗体 / Foxp3 |
Research Abstract |
Regulatory T (Treg) cells play an important role in graft tolerance. We examined whether a superagonistic monoclonal antibody specific for CD28 (CD28SA), using rat acute renal allograft model (Wistar to Lewis). CD28SA induced marked infiltration of Treg cells into the allografts. 90% of recipients treated with CD28SA survived over 100 days, and 70% survived with well-preserved graft function until graft harvest at 180 days. Furthermore, these long-surviving recipients showed donor-specific tolerance. In conclusion, CD28SA treatment successfully induces donor-specific tolerance with the involvement of Treg cells, and thus the therapeutic value of this approach warrants further investigation and preclinical studies.
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Report
(4 results)
Research Products
(17 results)
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[Journal Article] Superagonist CD28 antibody preferentially expanded Foxp3-expressing nTreg cells and prevented graft-versus-host diseases.2009
Author(s)
Kitazawa, Y. ; Fujino, M. ; Li, X.K. ; Xie, L. ; Ichimaru, N. ; Okumi, M. ; Nonomura, N. ; Tsujimura, A. ; Isaka, Y. ; Kimura, H. ; Hunig, T. ; Takahara, S.
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Journal Title
Cell transplantation 18(5)
Pages: 627-637
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[Journal Article] Superagonistic CD28 antibody induces donor-specific tolerance in rat renal allografts.2008
Author(s)
Azuma, H. ; Isaka, Y. Li, X. ; Hunig, T. ; Sakamoto, T. ; Nohmi, H. ; Takabatake, Y. ; Mizui, M. ; Kitazawa, Y. ; Ichimaru, N. ; Ibuki, N. ; Ubai, T. ; Inamoto, T. ; Katsuoka, Y. ; Takahara, S
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Journal Title
Am J Transplant 8(10)
Pages: 2004-2014
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[Journal Article] Foxp3-expressing regulatory T cells expanded with CD28 superagonist antibody can prevent rat cardiac allograft rejection.2008
Author(s)
Kitazawa, Y. ; Fujino, M. ; Sakai, T. ; Azuma, H. ; Kimura, H. ; Isaka, Y. ; Takahara, S. ; Hunig, T. ; Abe, R. ; Li, X.K.
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Journal Title
J Heart Lung Transplant 27(4)
Pages: 362-371
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[Presentation] A superagonistic monoclonal antibody for CD28 induced donor-specific tolerance2007
Author(s)
Y Isaka, Y Takabatake, M Mizui, H Tanaka, X Li, H Azuma, T Hunig, R Imamura, N Ichimaru, E Imai, S Takahara
Organizer
American Society of Nephrology
Place of Presentation
San Francisco USA
Year and Date
2007-11-03
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