Single cell analysis in gut by using multi-photon imaging
Project/Area Number |
20H03665
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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 |
Review Section |
Basic Section 53010:Gastroenterology-related
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Research Institution | Keio University |
Principal Investigator |
SUJINO Tomohisa 慶應義塾大学, 医学部(信濃町), 講師 (40464862)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Project Status |
Completed (Fiscal Year 2022)
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Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2022: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2021: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2020: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
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Keywords | 炎症性腸疾患 / 制御性T 細胞 / 腸管免疫 / Ahrシグナル / 制御性T細胞 |
Outline of Research at the Start |
正常腸管では炎症を誘発する細胞集団と炎症を押さえ込み、免疫応答を負に制御する細胞集団が存在しており、そのバランスで恒常性が維持されている。制御性T細胞(regulatory T cells; Tregs)は消化管における免疫制御の中心を担う細胞として知られており、その欠損や機能不全は炎症性腸疾患などの発症につながる。Tregsの存在は以前から重要視されているが、実際に腸管の中でいかに作用しているかについては不明な点が多い、新しい技術を利用して1つ1つの細胞が消化管の中でどのような局在を示し、局在規定因子を検討する。
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Outline of Final Research Achievements |
Using two-photon microscopy, we analyzed the localization and dynamics of regulatory T cells (Treg) in the intestinal mucosa (Sujino T. Science 2016). The localization, dynamics, and regulatory mechanism of Tregs in the suppression of inflammation have been unknown; by combining in vivo cell dynamics analysis technology using two-photon microscopy and single-cell functional analysis technology, we have demonstrated that (Aryl-hydrocarbon receptor) Ahr signaling in the intestinal epithelium alters the localization of Tregs within the intestinal tract. We reported that Ahr signaling in intestinal epithelium contributes to the suppression of inflammation by altering the localization of Tregs in the intestinal tract (Yoshimatsu Y, Sujino T. Cell Rep. 2022).
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Academic Significance and Societal Importance of the Research Achievements |
これまで炎症性腸疾患の治療薬は炎症惹起細胞の抑制がターゲットであった。近年Ahrリガンドを有する青黛という生薬が副作用の問題が存在するものの炎症性腸疾患に有用であると報告されている。しかしその機序は明らかでなかった。我々の報告で、Ahrリガンドが腸管上皮のAhrシグナルを介することで、腸管内における炎症抑制細胞の位置を変化させることが判明し、その結果炎症を抑制することを見出した。 本研究は、Tregに作用することで腸管炎症抑制効果を発揮することのメカニズムを証明し、さらに、その機序が腸管内での局在をかえるというユニークな機序を介していることを明らかにした。
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Report
(4 results)
Research Products
(22 results)
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[Journal Article] Single-cell transcriptomics of human gut T cells identifies cytotoxic CD4+CD8A+ T cells related to mouse CD4 cytotoxic T cells2022
Author(s)
Tanemoto Shun,Sujino Tomohisa,Miyamoto Kentaro,Moody Jonathan,Yoshimatsu Yusuke,Ando Yoshinari,Koya Ikuko,Harada Yosuke,Tojo Anna Okuzawa,Ono Keiko,Hayashi Yukie,Takabayashi Kaoru,Okabayashi Koji,Teratani Toshiaki,Mikami Yohei,Nakamoto Nobuhiro,Hosoe Naoki,Ogata Haruhiko,Hon Chung-Chau,Shin Jay W,Kanai Takanori
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Journal Title
Frontiers in Immunology
Volume: 13
Pages: 977117-977117
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Intracellular metabolic adaptation of intraepithelial CD4+CD8αα+ T lymphocytes2022
Author(s)
Harada Y, Sujino T, Miyamoto K, Nomura E, Yoshimatsu Y, Tanemoto S, Umeda S, Ono K, Mikami Y, Nakamoto N, Takabayashi K, Hosoe N, Ogata H, Ikenoue T, Hirao A, Kubota Y, Kanai T.
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Journal Title
iScience
Volume: 25
Issue: 4
Pages: 104021-104021
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Predictors of necessity for endoscopic balloon dilatation in patients with Crohn's disease-related small bowel stenosis2021
Author(s)
Yukie Hayashi, Kaoru Takabayashi, Naoki Hosoe, Hiroki Kiyohara, Satoshi Kinoshita, Kosaku Nanki, Kayoko Fukuhara, Yohei Mikami, Tomohisa Sujino, Makoto Mutaguchi, Takaaki Kawaguchi, Motohiko Kato, Haruhiko Ogata, Takanori Kanai
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Journal Title
Ann Med.
Volume: 53
Issue: 1
Pages: 2025-2033
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Characteristics of the Mucosal Surface on Scanning Electron Microscopy in Patients with Remitting Ulcerative Colitis2021
Author(s)
Nomura E, Sujino T, Hosoe N, Yoshimatsu Y, Tanemoto S, Takabayashi K, Mutaguchi M, Shimoda M, Naganuma M, Ogata H, Kanai T.
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Journal Title
Dig Dis Sci.
Volume: -
Issue: 9
Pages: 1-6
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Significance of endoscopic deep small bowel evaluation using balloon-assisted enteroscopy for Crohn's disease in clinical remission2021
Author(s)
Takabayashi K, Hosoe N, Kato M, Hayashi Y, Nanki K, Fukuhara K, Mikami Y, Mizuno S, Sujino T, Mutaguchi M, Naganuma M, Yahagi N, Ogata H, Kanai T.
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Journal Title
J Gastroenterol.
Volume: 56(1)
Issue: 1
Pages: 25-33
DOI
Related Report
Peer Reviewed
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[Journal Article] Clinical, Endoscopic, and Pathological Characteristics of Immune Checkpoint Inhibitor-Induced Gastroenterocolitis2021
Author(s)
Hayashi Y, Hosoe N, Takabayashi K, Limpias Kamiya KJL, Tsugaru K, Shimozaki K, Hirata K, Fukuhara K, Fukuhara S, Mutaguchi M, Sujino T, Sukawa Y, Hamamoto Y, Naganuma M, Takaishi H, Shimoda M, Ogata H, Kanai T.
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Journal Title
Dig Dis Sci.
Volume: -
Pages: 1-6
DOI
Related Report
Peer Reviewed
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[Journal Article] The liver-brain-gut neural arc maintains the Treg cell niche in the gut2020
Author(s)
Teratani T, Mikami Y, Nakamoto N, Suzuki T, Harada Y, Okabayashi K, Hagihara Y, Taniki N, Kohno K, Sibata S, Miyamoto K, Ishigame H, Chu Po-Sung, Sujino T, Suda W, Hattori M, Matsui M, Okada T, Okano H, Inoue M, Yada T, Kitagawa Y, Yoshimura A, Tanida M, Tsuda M, Iwasaki Y, Kanai T.
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Journal Title
Nature
Volume: 585
Issue: 7826
Pages: 591-596
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Mucosal concentrations of N-acetyl-5-aminosalicylic acid is related to endoscopic activity in ulcerative colitis patients with mesalamine.2020
Author(s)
Fukuda T, Naganuma M, Takabayashi K, Hagihara Y, Tanemoto S, Nomura E, Yoshimatsu Y, Sugimoto S, Nanki K, Mizuno S, Mikami Y, Fukuhara K, Sujino T, Mutaguchi M, Inoue N, Ogata H, Iwao Y, Abe T, Kanai T.
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Journal Title
J Gastroenterol Hepatol.
Volume: 35
Issue: 11
Pages: 1878-1885
DOI
Related Report
Peer Reviewed / Open Access
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