Identification and characterization of the target proteins of anti-inflammatory lipid mediator
Project/Area Number |
19K07357
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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 48040:Medical biochemistry-related
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Research Institution | Juntendo University |
Principal Investigator |
OKUNO TOSHIAKI 順天堂大学, 大学院医学研究科, 非常勤講師 (60361466)
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Project Period (FY) |
2019-04-01 – 2022-03-31
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Project Status |
Completed (Fiscal Year 2021)
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Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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)
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Keywords | SLCO2A1 / CEAS / プロスタグランジン / 慢性腸疾患 / 輸送体 / 小腸潰瘍 / 5ーリポキシゲナーゼ / プロポフォール / 麻酔薬 / ロイコトリエンB4 / 抗炎症 / ロイコトリエン / LPS / 脂質 |
Outline of Research at the Start |
リポキシン、レゾルビンやプロテクチンなどの抗炎症性脂質メディエーター(SPM)は、特異的なGタンパク質共役型受容体(GPCR)を介して抗炎症性作用を発揮すると考えられているが、その受容体や作用機序の詳細は未だ不明な点が多い。本研究ではSPMの受容体を明らかにし、シグナル活性化機構の解明や受容体欠損マウスを用いた解析によって、抗炎症作用を発揮する分子機序を明らかにする。
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Outline of Final Research Achievements |
Chronic intestinal diseases associated with the SLCO2A1 gene (CEAS) are caused by loss-of-function mutations in SLCO2A1, which encodes a prostaglandin (PG) transporter. We found a family member who presented to Juntendo Hospital with chronic non-specific ulcers and identified a novel SLCO2A1 mutation by genetic analysis. The levels of urine PG metabolites in patients with ulcers were much increased. We also showed that the novel SLCO2A1 mutation causes loss of PGE2 transporter function and induces CEAS.
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Academic Significance and Societal Importance of the Research Achievements |
本研究では、これまで知られていなかった新規のSLCO2A1の遺伝子変異を同定した。さらに、変異型輸送体に輸送機能がないことを実験的に証明した。本研究で確立した変異型SLCO2A1の機能解析法、及び質量分析計を用いた尿中代謝物の測定は、患者さんの負担の少ない方法で病態の解明や治療法の開発につながることが期待される。
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Report
(4 results)
Research Products
(45 results)
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[Journal Article] A novel mutation in the SLCO2A1 gene, encoding a prostaglandin transporter, induces chronic enteropathy.2021
Author(s)
Jimbo K., Okuno T., Ohgaki R., Nishikubo K., Kitamura Y., Sakurai Y., Quan L., Shoji H., Kanai Y., Shimizu T., Yokomizo T.
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Journal Title
Related Report
Peer Reviewed / Open Access
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[Journal Article] Eicosanoid profiling in patients with complete form of pachydermoperiostosis carrying SLCO2A1 mutations.2021
Author(s)
Oiwa T., Ishibashi M., Okuno T., Ohba M., Endo Y., Uozumi R., Ghazawi F.M., Yoshida K., Niizeki H., Yokomizo T., Nomura T., Kabashima K.
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Journal Title
Journal of Dermatology
Volume: 48(9)
Issue: 9
Pages: 1442-1446
DOI
Related Report
Peer Reviewed
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[Journal Article] Sphingosine 1-Phosphate (S1P) in the Peritoneal Fluid Skews M2 Macrophage and Contributes to the Development of Endometriosis.2021
Author(s)
Ono Y., Kawakita T., Yoshino O., Sato E., Kano K., Ohba M., Okuno T., Ito M., Koga K., Honda M., Furue A., Hiraoka T., Wada S., Iwasa T., Yokomizo T., Aoki J., Maeda N., Unno N., Osuga Y., Hirata S.
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Journal Title
Biomedicines
Volume: 9(11)
Issue: 11
Pages: 1519-1519
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Cutaneous Liver X Receptor Activation Prevents the Formation of Imiquimod-Induced Psoriatic Dermatitis.2021
Author(s)
Otsuka M., Egawa G., Dainichi T., Okuno T., Ishida Y., Chow Z., Asahina R., Miyake T., Nomura T., Kitoh A., Yokomizo T., Kabashima K.
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Journal Title
Journal of Investigative Dermatology
Volume: 142(4)
Issue: 4
Pages: 1233-1237.e1
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Expression of leukotriene B4 receptor 1 defines functionally distinct DCs that control allergic skin inflammation.2020
Author(s)
Tomoaki Koga, Fumiyuki Sasaki, Kazuko Saeki, Soken Tsuchiya, Toshiaki Okuno, Mai Ohba, Takako Ichiki, Satoshi Iwamoto, Hirotsugu Uzawa, Keiko Kitajima, Chikara Meno, Eri Nakamura, Norihiro Tada, Yoshinori Fukui, Junichi Kikuta, Masaru Ishii, Yukihiko Sugimoto, and Mitsuyoshi Nakao, Takehiko Yokomizo.
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Journal Title
Cellular & Molecular Immunology
Volume: 8
Issue: 6
Pages: 1-13
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] A novel mutation in the SLCO2A1 gene, encoding a prostaglandin transporter, induces chronic enteropathy.2020
Author(s)
Jimbo K., Okuno T., Ohgaki R., Nishikubo K., Kitamura Y., Sakurai Y., Quan L., Shoji H., Kanai Y., Shimizu T., Yokomizo T
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Journal Title
PLoS One
Volume: 15(11)
Issue: 11
Pages: e0241869-e0241869
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Leukotriene B4 receptor 1 exacerbates inflammation following myocardial infarction.2020
Author(s)
Horii Y, Nakaya M, Ohara H, Nishihara H, Watari K, Nagasaka A, Nakaya T, Sugiura Y, Okuno T, Koga T, Tanaka A, Yokomizo T, Kurose H.
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Journal Title
FASEB Journal
Volume: 印刷中
Issue: 6
Pages: 8749-8763
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Leukotriene A4 hydrolase deficiency protects mice from diet-induced obesity by increasing energy expenditure through neuroendocrine axis.2020
Author(s)
Uzawa H, Kohno D, Koga T, Sasaki T, Fukunaka A, Okuno T, Jo-Watanabe A, Kazuno S, Miyatsuka T, Kitamura T, Fujitani Y, Watada H, Saeki K*, Yokomizo T
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Journal Title
FASEB J
Volume: 34(10)
Issue: 10
Pages: 13949-13958
DOI
Related Report
Peer Reviewed
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[Journal Article] Prostaglandin E2 and its receptor EP2 trigger signaling that contributes to YAP-mediated cell competition.2020
Author(s)
Ishihara E, Nagaoka Y, Okuno T, Kofuji S, Ishigami-Yuasa M, Kagechika H, Kamimura K, Terai S, Yokomizo T, Sugimoto Y, Fujita Y, Suzuki A, Nishina H.
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Journal Title
Genes Cells.
Volume: 25(3)
Issue: 3
Pages: 197-214
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] Deficiency of BLT1, the high-affinity receptor for LTB4, alleviates allergic conjunctivitis in mice.2019
Author(s)
Hirakata T., Lee C. H., Yasukawa K., Adachi K., Saeki K., Okuno T., Murakami A., Matsuda A., Yokomizo T.
Organizer
60th ICBL, International Conference on the Bioscience of Lipids
Related Report
Int'l Joint Research
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