Roles of intestinal mast cells in tolerance induction to food allergens
Project/Area Number |
18K08416
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 54020:Connective tissue disease and allergy-related
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Research Institution | Juntendo University |
Principal Investigator |
Nakano Nobuhiro 順天堂大学, 医学(系)研究科(研究院), 助教 (30420839)
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Project Period (FY) |
2018-04-01 – 2021-03-31
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Project Status |
Completed (Fiscal Year 2020)
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Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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Keywords | 食物アレルギー / 経口免疫療法 / マスト細胞 / Notchシグナル / 骨髄由来免疫抑制細胞 / 腸管マスト細胞 / アレルギー / 免疫寛容 |
Outline of Final Research Achievements |
The purpose of this study was to elucidate the immunological mechanisms by which tolerance is induced to food allergens. We have shown that Notch receptor-mediated signaling contributes to the establishment of sustained unresponsiveness to food allergens induced by oral immunotherapy through systemic and local expansion of immunosuppressive cells, such as IL-10-producing helper T cells and myeloid-derived suppresser cells by using a mouse model of oral immunotherapy. These findings provide insights into how patients with food allergies can achieve tolerance by oral immunotherapy.
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Academic Significance and Societal Importance of the Research Achievements |
食物アレルギー患者は年々増加しており、食物アレルギーを根治できる治療法の開発が切実に求められている。経口免疫療法は原因食物に対して一時的に耐性を誘導するが、一部の症例では持続的な耐性も獲得される。しかしながら、持続的な耐性獲得のメカニズムの多くは不明である。本研究では、マウスモデルを使用することにより持続的な耐性獲得に関与する細胞群及び分子を明らかにした。得られた知見を基に、より有効な経口免疫療法を開発できるのではないかと考えている。
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Report
(4 results)
Research Products
(21 results)
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[Journal Article] CD300f is a potential therapeutic target for the treatment of food allergy2019
Author(s)
Uchida Shino、Izawa Kumi、Ando Tomoaki、Yamada Hiromichi、Uchida Koichiro、Negishi Naoko、Kaitani Ayako、Maehara Akie、Nagamine Masakazu、Kamei Anna、Takamori Ayako、Maeda Keiko、Nakano Nobuhiro、Shimizu Toshiaki、Ogawa Hideoki、Okumura Ko、Nagahara Akihito、Watanabe Sumio、Kitaura Jiro
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Journal Title
Allergy
Volume: 75
Issue: 2
Pages: 471-474
DOI
NAID
Related Report
Peer Reviewed / Open Access
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[Journal Article] Identification of inhibitory mechanisms in pseudo-allergy involving Mrgprb2/MRGPRX2-mediated mast cell activation2019
Author(s)
Takamori A, Ozawa K, Kaitani A, Ando T, Okamoto Y, Maehara A, Tanabe A, Nagamine M, Yamada H, Uchida S, Uchida K, Isobe M, Hatayama T, Watanabe D, Ando T, Ide T, Matsuzawa M, Maeda K, Nakano N, Tamura N, Ikeda K, Ebihara N, Shimizu T, Ogawa H, Okumura K, Kitaura J
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Journal Title
Journal of Allergy and Clinical Immunology
Volume: 143
Issue: 3
Pages: 1231-1235
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Leukocyte mono-immunoglobulin-like receptor 8 (LMIR8)/CLM-6 is an FcRγ-coupled receptor selectively expressed in mouse tissue plasmacytoid dendritic cells2018
Author(s)
Kaitani A, Izawa K, Maehara A, Isobe M, Takamori A, Matsukawa T, Takahashi M, Yamanishi Y, Oki T, Yamada H, Nagamine M, Uchida S, Uchida K, Ando T, Maeda K, Nakano N, Shimizu T, Takai T, Ogawa H, Okumura K, Kitamura T, Kitaura J
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Journal Title
Scientific Reports
Volume: 8
Issue: 1
Pages: 8259-8259
DOI
Related Report
Peer Reviewed / Open Access
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[Presentation] Establishment of sustained unresponsiveness to food allergens by oral immunotherapy is prevented by inhibition of Notch signaling2020
Author(s)
Nobuhiro Nakano, Toshiyuki Yoneyama, Mutsuko Hara, Hiromichi Yamada, Kumi Izawa, Koichiro Uchida, Ayako Kaitani, Tomoaki Ando, Jiro Kitaura, Yoshikazu Ohtsuka, Toshiaki Shimizu, Hideoki Ogawa, Ko Okumura
Organizer
JSA/WAO Joint Congress 2020
Related Report
Int'l Joint Research
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