双重特异性酸酶3缺乏或抑制限制了血小板激活和动脉血栓形成
Lucia Musumeci1, Marijke J Kuijpers1, Karen Gilio1
1From the Immunology and Infectious Diseases Unit, GIGA-Signal Transduction (L. Musumeci, L. Maurissen, M.V., C.V.D., M.M., S.R.), Laboratory of Thrombosis and Haemostasis, GIGA-Cardiovascular Sciences (A.H., L. Maurissen, C.V.D., C.L., W.G., C.O.), Unit of Animal Genomics, GIGA-Genetics and Faculty of Veterinary Medicine (E.T.), Unit of Hepato-Gastroenterology, CHU de Liège and Faculty of Medicine (E.T.), GIGA-Animal Facility (B23) (P.D.), Laboratory of Cell and Tissue Biology, GIGA-Neurosciences (M.T.), and Department of Cardiology, Heart Valve Clinic, CHU Sart Tilman, GIGA Cardiovascular Sciences (P.L.), University of Liège, Liège, Belgium; Laboratory of Cellular Thrombosis and Haemostasis, Cardiovascular Research Institute Maastricht CARIM, Maastricht University, Maastricht, the Netherlands (M.J.K., K.G., L. Maurissen, J.W.M.H.); Conrad Prebys Center for Chemical Genomics (E.V.B., R.D., J.R., Y.M., H.Y., E.S., T.D.Y.C.) and NCI-Designated Cancer Center (L.T.), Sanford-Burnham Medical Research Institute, La Jolla, CA; Institute for Physiological Chemistry and Pathobiochemistry, University of Münster, Münster, Germany (J.A.E.); and Centre for Cardiovascular Sciences, Institute of Biomedical Research, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK (Y.S.).
双特异性酸酶3 (DUSP3) 对于血小板激活和血栓形成至关重要. 抑制DUSP3可能为动脉血栓形成提供一种新的治疗方法,而不会增加出血风险.
科学领域:
- 血液学 血液学 血液学
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 目前的抗血小板疗法难以区分预防血栓形成和引起出血.
- 了解血小板激活机制是开发更好的抗血小板药物的关键.
- 蛋白质氨酸酸酶越来越被认为是血小板功能的重要调节者.
研究的目的:
- 调查双特异性酸酶3 (DUSP3) 在血小板信号传递和血栓形成中的作用.
- 探索针对动脉血栓形成的DUSP3的治疗潜力.
主要方法:
- 研究了人类和小鼠血小板中的DUSP3表达.
- 使用DUSP3缺乏的小鼠来评估血小板聚合,颗粒分泌和血栓栓塞.
- 研究了分子信号通路,包括Syk酸化和流.
- 在人类血小板中开发并测试了一种新的DUSP3小分子抑制剂.
主要成果:
- DUSP3在血小板中高度表达,在原蛋白和C型甲状腺样受体2-介导的血小板激活中发挥关键作用.
- 缺乏DUSP3的小鼠显示血小板聚合和血栓形成受损,但没有改变出血时间.
- DUSP3缺乏导致Syk酸化,脂酶Cγ2酸化和流量减少.
- 一种DUSP3抑制剂有效地阻断了原和C型甲酸样受体2-诱导的人类血小板聚合.
结论:
- DUSP3对于原和C型甲状腺样受体2介导的血小板激活和体内血栓形成至关重要.
- 用小分子抑制剂向DUSP3,为动脉血栓形成提供了一个有前途的治疗策略.
- 这项研究标志着首次用小分子药物向参与血小板信号传递的蛋白质氨酸酸酶.
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