Analysis of the mechanism by which lipid-recognizing paired immnue receptors regulate inflammation
Project/Area Number |
17H04217
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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 |
Collagenous pathology/Allergology
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Research Institution | Juntendo University |
Principal Investigator |
Kitaura Jiro 順天堂大学, 医学(系)研究科(研究院), 先任准教授 (30282651)
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Project Period (FY) |
2017-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2019: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2018: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2017: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
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Keywords | 炎症 / アレルギー / ペア型免疫受容体 / 脂質 / アレルギー・喘息 / 免疫学 / シグナル伝達 |
Outline of Final Research Achievements |
We elucidate the mechanisms underlying lipid-recognizing paired immune receptors regulate inflammation. An inhibitory receptor LMIR3 inhibits IgE-dependent and independent activating signals by binding to ceramide, thereby suppressing IgE-dependent anaphylaxis and food allergy and IgE-independent inflammation such as pseudo-allergy. On the other hand, we provide evidence that activating receptors LMIR6 and LMIR7 promote inflammation by binding to specific lipids similar to ceramides. In addition, we demonstrate that the differential recognition of lipid ligands by mouse versus human LMIR3 depends on the difference of a single amino acid in their extracellular domains.
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Academic Significance and Societal Importance of the Research Achievements |
ペア型免疫受容体は免疫細胞の活性化を促進あるいは抑制して免疫応答を調整する。本研究により、抑制型受容体LMIR3が特定の脂質を認識してアレルギーや炎症を抑えること、また、対をなす活性化型受容体は類似の脂質を認識して炎症を促進することが示された。従って、LMIR分子を標的とする特定の脂質は炎症を抑える薬剤として利用可能である。このように、本研究の意義は炎症性疾患に対する新規治療法開発の分子基盤が形成された点にある。
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Report
(4 results)
Research Products
(53 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] IL-31 is crucial for induction of pruritus, but not inflammation, in contact hypersensitivity.2018
Author(s)
Takamori A, Nambu A, Sato K, Yamaguchi S, Matsuda K, Numata T, Sugawara T, Yoshizaki T, Arae K, Morita H, Matsumoto K, Sudo K, Okumura K, Kitaura J, Matsuda H, Nakae S
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Journal Title
Sci Rep.
Volume: 8
Pages: 6639-6639
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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[Journal Article] Role of the ceramide-CD300f interaction in gram-negative bacterial skin infections.2018
Author(s)
Maehara A, Kaitani A, Izawa K, Shiba E, Nagamine M, Takamori A, Isobe M, Uchida S, Uchida K, Ando T, Keiko M, Nakano N, Voehringer D, Roers A, Shimizu T, Ogawa H, Okumura K, Kitamura T, Kitaura J.
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Journal Title
J Invest Dermatol.
Volume: 138
Issue: 5
Pages: 1221-1224
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] The CD300e molecule in mice is an immune-activating receptor.2018
Author(s)
Isobe M, Izawa K, Sugiuchi M, Sakanishi T, Kaitani A, Takamori A, Maehara A, Matsukawa T, Takahashi M, Yamanishi Y, Oki T, Uchida S, Uchida K, Ando T, Maeda K, Nakano N, Yagita H, Takai T, Ogawa H, Okumura K, Kitamura T, Kitaura J.
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Journal Title
J Biol Chem.
Volume: 293
Issue: 10
Pages: 3793-3805
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Disrupting ceramide-CD300f interaction prevents septic peritonitis by stimulating neutrophil recruitment.2017
Author(s)
Izawa K, Maehara A, Isobe M, Yasuda Y, Urai M, Hoshino Y, Ueno K, Matsukawa T, Takahashi M, Kaitani A, Shiba E, Takamori A, Uchida S, Uchida K, Maeda K, Nakano N, Yamanishi Y, Oki T, Voehringer D, Roers A, Nakae S, Ishikawa J, Kinjo Y, Shimizu T, Ogawa H, Okumura K, Kitamura T, Kitaura J
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Journal Title
Sci Rep.
Volume: 7(1)
Issue: 1
Pages: 4298-4298
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] Differential lipid recognition by mouse versus human CD300f, inhibiting IgE-mediated mast cell activation, depends on a single amino acid substitution in its immunoglobulin-like domain2019
Author(s)
Ayako Kaitani, Kumi Izawa, Tomoaki Ando, Akie Maehara, Enzhi Yin, Moe Matsuzawa, Saaya Fukase, Hexing Wang, Keiko Maeda, Nobuhiro Nakano, Ko Okumura, Jiro Kitaura
Organizer
第48回日本免疫学会
Related Report
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[Presentation] Mast cell- and IgE-dependent anaphylaxis is regulated by the interaction between inhibitory LMIR3/activating LMIR7 and specific lipids2019
Author(s)
Kumi Izawa, Ayako Kaitani, Tomoaki Ando, Akie Maehara, Takuma Ide, Moe Matsuzawa, Saaya Fukase, Anna Kamei, Taiki Ando, Nobuhiro Nakano, Ko Okumura Jiro Kitaura
Organizer
第48回日本免疫学会
Related Report
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[Presentation] Exaggerated inflammasome activation by a novel NLRP1 mutant derived from a rare disease with severe liver fibrosis2019
Author(s)
Taiki Ando, Akie Maehara, Tomoaki Ando, Kumi Izawa, Ayako Kaitani, Enzhi Yin, Takuma Ide, Keiko Maeda, Nobuhiro Nakano, Naoto Tamura, Ko Okumura, Jiro Kitaura
Organizer
第48回日本免疫学会
Related Report
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[Presentation] Identification of inhibitory mechanisms in pseudo-allergy involving Mrgprb2/MRGPRX2-mediated mast cell activation2019
Author(s)
Yoko Okamoto, Ayako Takamori, Kumi Izawa, Tomoaki Ando, Ayako Kaitani, Akie Maehara, Enzhi Yin, Hiromichi Yamada, Hexing Wang, Nobuhiro Nakano, Ko Okumura, Jiro Kitaura
Organizer
第48回日本免疫学会
Related Report
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[Presentation] An inhibitory receptor CD300f inhibits the pathogenesis of OVA-induced food allergy in mice2019
Author(s)
Anna Kamei, Shino Uchida, Hiromichi Yamada, Kumi Izawa, Tomoaki Ando, Naoko Negishi, Akie Maehara, Ayako Kaitani, Yoko Okamoto, Nobuhiro Nakano, Ko Okumura, Jiro Kitaura
Organizer
第48回日本免疫学会
Related Report
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[Presentation] Mast cell- and IgE-dependent anaphylaxis is regulated by paired receptors LMIR3 and LMIR72017
Author(s)
Kumi Izawa, Akie Maehara, Ayako Kaitani, Ayako Takamori, Shino Uchida, Masamichi Isobe, Tomoaki Ando, Keiko Maeda, Nobuhiro Nakano, Ko Okumura, Toshio Kitamura, Jiro Kitaura
Organizer
第46回日本免疫学会学術集会
Related Report
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