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细胞外囊泡 (EVs) 的增加与T细胞介导的炎症和家族性高胆固醇血症中的血管功能有关
Morten Hjuler Nielsen1, Rikke Bæk2, Malene Moller Jorgensen2,3
1Department of Clinical Biochemistry, Aalborg University Hospital, Aalborg, Denmark.
Atherosclerosis plus
|August 28, 2023
概括
与适应性免疫和内皮功能障碍相关的细胞外囊泡 (EVs) 在家族性高胆固醇血症 (FH) 患者中升高. 这些EV与增加的动脉样硬化负担相关,突出显示了它们在疾病进展中的作用.
科学领域:
- 心血管研究研究心血管研究
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 氧化低密度脂蛋白 (oxLDL) 影响先天性和适应性免疫力.
- 来自各种细胞的细胞外囊泡 (EVs) 与动脉样硬化有关.
- 研究表达适应性免疫和内皮功能障碍标记物的EV在高胆固醇血症中至关重要.
研究的目的:
- 为了研究表达与适应性免疫驱动炎症相关的标记物的EV.
- 在高胆固醇血症患者中检查与内皮激活和功能障碍相关的EV.
- 为了确定特定的EV标记和动脉样硬化负担之间的关系.
主要方法:
- 使用细胞外膀 (EV) 阵列的EVs的表型化.
- 利用了针对B细胞,T细胞和内皮细胞上的蛋白质的抗体.
- 在30名家族性高胆固醇血症 (FH) 患者和23名健康对照中比较了EV标志物.
主要成果:
- FH患者表现出较高的动脉样硬化负担 (IMT) 和oxLDL水平.
- 在FH患者中发现一般EV标志物 (CD9,CD63,CD81,Annexin V) 的水平升高.
- 在FH患者中观察到与适应性免疫 (CD28,CD4,CD152,LFA-1) 和内皮功能 (CD62E,CD144,tPA,CD31) 相关的EV标志物增加.
- 线性回归显示了动脉IMT和几个升高的EV标志物 (CD9,CD63,CD28,CD4,CD152,LFA-1,CD62E) 之间的正相关性.
结论:
- 与适应性免疫和内皮功能障碍相关的EV在FH患者中升高.
- 这些升高的EV标记与较高的动脉样硬化负担相关.
- 这些发现表明,这些特定的EV在FH动脉样硬化的发病过程中起着重要作用.
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