Elucidation of disease control mechanism by intestinal bacteria-host interactions through extracellular phospholipid metabolism
Project/Area Number |
19K07042
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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 47030:Pharmaceutical hygiene and biochemistry-related
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Research Institution | The University of Tokyo |
Principal Investigator |
MIKI Yoshimi 東京大学, 大学院医学系研究科(医学部), 特任研究員 (00632499)
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Project Period (FY) |
2019-04-01 – 2023-03-31
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Project Status |
Completed (Fiscal Year 2022)
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Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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Keywords | 脂質 / ホスホリパーゼA2 / 腸内細菌 / 免疫 / がん / アレルギー / 炎症 / リポクオリティ / PLA2 / 癌 / 腸内細菌叢 |
Outline of Research at the Start |
本研究では、細胞外のリン脂質代謝を担う分泌性ホスホリパーゼA2(sPLA2)に関して、腸管上皮固有に発現しているsPLA2-IIAによる脂質代謝が微生物叢と宿主の相互作用に与える影響を定量的・定性的に捉え、微生物叢の維持と変容ならびにそれに基づく全身組織の恒常性の維持や疾患発症の新規メカニズムを解明することで、sPLA2の新しい動作原理を基盤とした新たな創薬・健康シーズ創出のための土台を築く。
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Outline of Final Research Achievements |
Secretory phospholipase A2 (sPLA2) is the enzyme that has various physiological functions by metabolizing phospholipids in microenvironment of tissue where characteristically expressed in vivo. In this study, we focused on sPLA2-IIA, and attempted to elucidate the mechanism that sPLA2-IIA-deficient mice show exceptional phenotypes of cancer and allergy in remote tissues (skin) rather than in the site of expression (intestinal tract). Then, we found that sPLA2-IIA directly affected intestinal microbiota, the source of phospholipids in the intestinal tract, and altered the composition of intestinal microbiota and bacteria-specific lipid metabolites. These results elucidate a novel disease control mechanism via regulation of the intestinal microbiome by sPLA2, and expected to be applied to novel therapeutic and preventive strategies for various immune-related diseases.
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Academic Significance and Societal Importance of the Research Achievements |
本研究成果は、従来の脂質メディエーター動員酵素としてのPLA2の概念とは一線を画す脂質代謝酵素の新しい動作原理を提示したとともに、腸内細菌叢の研究領域にPLA2という新しい概念を導入した点で、独創的かつ創造的であると考えられる。sPLA2-IIAによる腸内細菌と細菌由来の代謝物の変化を定性的・定量的に捉えることに成功した本研究成果は、将来的に癌やアレルギー性疾患の発症や予後を予測するための新規診断法の開発や、当該代謝物を利用した創薬への展開も期待できる。
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Report
(5 results)
Research Products
(67 results)
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[Journal Article] Hepatic phosphatidylcholine catabolism driven by PNPLA7 and PNPLA8 supplies endogenous choline to replenish the methionine cycle with methyl groups2023
Author(s)
Hirabayashi T, Kawaguchi M, Harada S, Mouri M, Takamiya R, Miki Y, Sato H, Taketomi Y, Yokoyama K, Kobayashi T, Tokuoka SM, Kita Y, Yoda E, Hara S, Mikami K, Nishito Y, Kikuchi N, Nakata R, Kaneko M, Kiyonari H, Kasahara K, Aiba T, Ikeda K, Soga T, Kurano M, Yatomi Y, Murakami M
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Journal Title
Cell Rep
Volume: 42
Issue: 2
Pages: 111940-111940
DOI
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Peer Reviewed / Open Access
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[Journal Article] Autophagy is required for maturation of surfactant-containing lamellar bodies in the lung and swim bladder2020
Author(s)
Hideaki Morishita, Yuki Kanda, Takeshi Kaizuka, Haruka Chino, Kazuki Nakao, Yoshimi Miki, Yoshitaka Taketomi, Jun-Lin Guan, Makoto Murakami, Atsu Aiba, Noboru Mizushima
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Journal Title
Cell Reports
Volume: 33
Issue: 10
Pages: 108477-108477
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Parkinson's disease-associated iPLA2-VIA/PLA2G6 regulates neuronal functions and α-synuclein stability through membrane remodeling.2019
Author(s)
Mori A, Hatano T, Inoshita T, Shiba-Fukushima K, Koinuma T, Meng H, Kubo SI, Spratt S, Cui C, Yamashita C, Miki Y, Yamamoto K, Hirabayashi T, Murakami M, Takahashi Y, Shindou H, Nonaka T, Hasegawa M, Okuzumi A, Imai Y, Hattori N.
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Journal Title
Proc Natl Acad Sci U S A.
Volume: 116(41)
Issue: 41
Pages: 20689-20699
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] Lipid profiling reveals the presence of unique lipid mediators in human milk from healthy and mastitic subjects2022
Author(s)
Yuki Nagasaki, Erika Kawai, Saya Marukoka, Miho Osumi, Izumi Tsukayama, Yuka Okazaki, Yoshimi Miki, Kei Yamamoto, Makoto Murakami, Toshiko Suzuki-Yamamoto
Organizer
17th International Conference on Bioactive Lipids in Cancer, Inflammation and Related Diseases 2022
Related Report
Int'l Joint Research
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[Presentation] PLAAT1 Deficiency Alleviates High Fat Diet-Induced Hepatic Lipid Accumulation in Mice2022
Author(s)
S.M. Khaledur Rahman, Toru Uyama, Zahir Hussain, Mohammad Mamun Sikder, Hiroyuki Saiga, Kenichi Ota, Katsuaki Hoshino, Masaki Ueno, Yoshimi Miki, Makoto Murakami, Natsuo Ueda
Organizer
第68回日本生化学会中国・四国支部例会_香川大・宇山
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[Presentation] ヒトとウシの乳汁中脂質メディエータープロファイル.2021
Author(s)
長崎 祐樹, 丸岡 紗也, 大角 美穂, 津嘉山 泉, 川上 祐生, 高橋 吉孝, 岡﨑 愉加, 三木 寿美, 山本 圭, 村上 誠, 山本 登志子.
Organizer
第75回日本栄養・食糧学会大会
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[Presentation] ヒトとウシの乳汁中脂質プロファイル比較.2021
Author(s)
長崎 祐樹, 川井 恵梨佳, 田中 充樹, 戸田 圭祐, 津嘉山 泉, 川上 祐生, 高橋 吉孝, 岡﨑 愉加, 三木 寿美, 山本 圭, 村上 誠, 山本 登志子.
Organizer
第63回脂質生化学会
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[Presentation] ヒトとウシの乳汁中脂質プロファイル解析2019
Author(s)
長崎祐樹, 川井恵梨佳, 田中充樹, 戸田圭祐, 津嘉山泉, 川上祐生, 高橋吉孝, 岡﨑愉加, 三木寿美, 山本圭, 村上誠, 山本登志子
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第92回日本生化学会大会
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[Presentation] 赤米由来プロアントシアニジンによる5-リポキシゲナーゼ阻害と乾癬予防効果2019
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戸田圭祐, 津嘉山泉, 長崎祐樹, 爲延麻子, 鴻池優佳, 我如古菜月, 伊東秀之, 川上祐生, 高橋吉孝, 三木寿美, 山本圭, 村上誠, 山本登志子
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第61回日本脂質生化学会
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[Presentation] Inhibition of arachidonate 5-lipoxygenase and improvement in psoriasis by red rice proanthocyanidin2019
Author(s)
Keisuke Toda, Yuki Nagasaki, Izumi Tsukayama, Asako Tamenobu, Yuka Konoike, Natsuki Ganeko, Hideyuki Ito, Yuki Kawakami, Yoshitaka Takahashi, Yoshimi Miki, Kei Yamamoto, Makoto Murakami, Toshiko Suzuki-Yamamoto
Organizer
60th International Conference on the Bioscience of Lipids
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[Presentation] Lipocalin-type prostaglandin D synthase as a potential biomarker of bovine mastitis2019
Author(s)
Yuki Nagasaki, Erika Kawai, Mitsuki Tanaka, Keisuke Toda, Izumi Tsukayama, Yuki Kawakami, Yoshitaka Takahashi, Masumi Kimoto, Yuka Okazaki, Yoshimi Miki, Kei Yamamoto, Makoto Murakami, Toshiko Suzuki-Yamamoto
Organizer
60th International Conference on the Bioscience of Lipids
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