Mechanisms of regulatory T cell-mediated immune regulation
Project/Area Number |
15H04747
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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 |
Immunology
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Research Institution | The University of Tokyo (2016-2017) Institute of Physical and Chemical Research (2015) |
Principal Investigator |
Hori Shohei 東京大学, 大学院薬学系研究科(薬学部), 教授 (50392113)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2017: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2015: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
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Keywords | 免疫寛容 / 自己免疫疾患 / 制御性T細胞 / 遺伝子発現制御 / Foxp3 / BATF / 自己免疫寛容 / 転写因子 |
Outline of Final Research Achievements |
Foxp3+ regulatory T cells (Treg) are essential for the regulation of deleterious immune responses. Recent studies have shown that Treg cells change their gene expression in order to adapt to inflammatory or tissue environments to regulate immune responses. However, the molecular basis of this ability -adaptability- remains elusive. By generating mouse models harboring Foxp3 mutations identified in patients with the autoimmune disease IPEX, we have found that one mutation, A384T, induces tissue inflammation by specifically impairing the ability of Treg cells to accumulate in certain non-lymphoid tissues. Mechanistically, repressed expression of the transcription factor BATF contributed to the impaired adaptability of tissue Treg cells in the mutant mice. At the molecular level, the A384T mutation acted as a gain-of-function mutation in that it broadened the DNA-binding specificity of Foxp3. Our findings identify BATF as a critical regulator of Treg cell adaptability.
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Report
(4 results)
Research Products
(21 results)
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[Journal Article] Unique properties of thymic antigen-presenting cells promote epigenetic imprinting of alloantigen-specific regulatory T cells.2017
Author(s)
Garg G, Nikolouli E, Hardtke-Wolenski M, Toker A, Ohkura N, Beckstette M, Miyao T, Geffers R, Floess S, Gerdes N, Lutgens E, Osterloh A, Hori S, Sakaguchi S, Jaeckel E, Huehn J.
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Journal Title
Oncotarget.
Volume: 8(22)
Issue: 22
Pages: 35542-35557
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] T follicular helper and T follicular regulatory cells have different TCR specificity2017
Author(s)
Maceiras, A. R. Almeida, S. C. P. Mariotti-Ferrandiz, E. Chaara, W. Jebbawi, F. Six, A. Hori, S. Klatzmann, D. Faro, J. Graca, L.
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Journal Title
Nat Commun
Volume: 8
Issue: 1
Pages: 15067-15067
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Maternal High Fiber Diet during Pregnancy and Lactation Influences Regulatory T Cell Differentiation in Offspring in Mice2017
Author(s)
Nakajima, A. Kaga, N. Nakanishi, Y. Ohno, H. Miyamoto, J. Kimura, I. Hori, S. Sasaki, T. Hiramatsu, K. Okumura, K. Miyake, S. Habu, S. Watanabe, S.
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Journal Title
J Immunol
Volume: 199
Issue: 10
Pages: 3516-3524
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Attenuation of CD4+CD25+regulatory T cells in the tumor microenvironment by metformin, a type 2 diabetes drug2017
Author(s)
Kunisada Y, Eikawa S, Tomonobu N, Domae S, Uehara T, Hori S, Furusawa Y, Hase K, Sasaki A, Udono H.
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Journal Title
EBioMedicine
Volume: 25
Pages: 154-164
DOI
NAID
Related Report
Peer Reviewed / Open Access
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[Journal Article] Helios enhances regulatory T cell function in cooperation with Foxp32015
Author(s)
Takatori H, Kawashima H, Matsuki A, Meguro K, Tanaka S, Iwamoto T, Sanayama Y, Nishikawa N, Tamachi T, Ikeda K, Suto A, Suzuki K, Kagami S, Hirose K, Kubo M, Hori S, Nakajima H
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Journal Title
Arthritis Rheumatol
Volume: 67
Issue: 6
Pages: 1491-502
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] 制御性T細胞とアレルギー2016
Author(s)
堀昌平
Organizer
日本アレルギー学会 第3回総合アレルギー講習会
Place of Presentation
パシフィコ横浜(神奈川県横浜市)
Year and Date
2016-12-17
Related Report
Invited
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[Presentation] 制御性T細胞の多様性とその意義2016
Author(s)
堀昌平
Organizer
第16回LEGEND seminar 2016
Place of Presentation
ANAクラウンプラザホテル沖縄(沖縄県那覇市)
Year and Date
2016-12-04
Related Report
Invited
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