2022 Fiscal Year Final Research Report
Activation mechanism of 12-Lypoxigenase in thrombus formation
Project/Area Number |
19K08853
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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 54010:Hematology and medical oncology-related
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Research Institution | National Center for Geriatrics and Gerontology |
Principal Investigator |
Katsumi Akira 国立研究開発法人国立長寿医療研究センター, 病院, 部長 (80378025)
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Co-Investigator(Kenkyū-buntansha) |
天野 睦紀 名古屋大学, 医学系研究科, 准教授 (90304170)
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Project Period (FY) |
2019-04-01 – 2023-03-31
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Keywords | アラキドン酸 / small GTPase / エフェクター |
Outline of Final Research Achievements |
Lipoxygenase (LOX) is a multifunctional protein involved in atherosclerosis, platelet aggregation, chronic inflammation, and cancer development. We established an affinity chromatography system using Rho family GTPases as bait followed by mass spectrometry (LC/MS-MS) and identified several proteins that bind specifically to the active form of Rho GTPase. Among them, 12-LOX was confirmed to bind to active Rho GTPases. There was no direct binding between the two, indicating that 12-LOX binds to active Rho GTPases via their effectors, and experiments with GTPase inhibitors revealed activation-dependent binding of 12-LOX.
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Free Research Field |
血液内科学
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Academic Significance and Societal Importance of the Research Achievements |
アラキドン酸リポキシゲナーゼ(LOX)とその下流の脂質メディエーターは動脈硬化、血小板凝集、慢性炎症、がんの進展などに関与する多機能蛋白である。LOX下流の脂質メディエーターについては活発に研究が行われているが、上流の制御メカニズムについては殆ど報告がなされていない。当該研究ではALOX上流の制御メカニズムを解明することで、血管をターゲットにした治療応用の基盤としたい。
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