Yaker Linda, Kamel Saïd, Ausseil Jérôme, Boullier Agnès
MP3CV-UR7517, CURS-Université de Picardie Jules Verne, Avenue de la Croix Jourdain, F-80054 Amiens, France.
Laboratoire de Biochimie CHU Amiens-Picardie, Avenue de la Croix Jourdain, F-80054 Amiens, France.
Toxins (Basel). 2020 Dec 21;12(12):811. doi: 10.3390/toxins12120811.
Vascular calcification (VC) is a cardiovascular complication associated with a high mortality rate, especially in patients with diabetes, atherosclerosis or chronic kidney disease (CKD). In CKD patients, VC is associated with the accumulation of uremic toxins, such as indoxyl sulphate or inorganic phosphate, which can have a major impact in vascular remodeling. During VC, vascular smooth muscle cells (VSMCs) undergo an osteogenic switch and secrete extracellular vesicles (EVs) that are heterogeneous in terms of their origin and composition. Under physiological conditions, EVs are involved in cell-cell communication and the maintenance of cellular homeostasis. They contain high levels of calcification inhibitors, such as fetuin-A and matrix Gla protein. Under pathological conditions (and particularly in the presence of uremic toxins), the secreted EVs acquire a pro-calcifying profile and thereby act as nucleating foci for the crystallization of hydroxyapatite and the propagation of calcification. Here, we review the most recent findings on the EVs' pathophysiological role in VC, the impact of uremic toxins on EV biogenesis and functions, the use of EVs as diagnostic biomarkers and the EVs' therapeutic potential in CKD.
血管钙化(VC)是一种与高死亡率相关的心血管并发症,在糖尿病、动脉粥样硬化或慢性肾脏病(CKD)患者中尤为常见。在CKD患者中,VC与尿毒症毒素的蓄积有关,如硫酸吲哚酚或无机磷酸盐,它们可对血管重塑产生重大影响。在VC过程中,血管平滑肌细胞(VSMC)发生成骨转化并分泌细胞外囊泡(EV),这些EV在起源和组成方面具有异质性。在生理条件下,EV参与细胞间通讯和细胞内稳态的维持。它们含有高水平的钙化抑制剂,如胎球蛋白-A和基质Gla蛋白。在病理条件下(特别是存在尿毒症毒素时),分泌的EV呈现促钙化特征,从而作为羟基磷灰石结晶和钙化扩散的成核位点。在此,我们综述了关于EV在VC中的病理生理作用、尿毒症毒素对EV生物发生和功能的影响、EV作为诊断生物标志物的应用以及EV在CKD中的治疗潜力的最新研究结果。
Toxins (Basel). 2020-12-21
Toxins (Basel). 2021-1-3
Arterioscler Thromb Vasc Biol. 2018-1-4
Toxins (Basel). 2021-4-10
Toxins (Basel). 2020-9-29
Vasc Health Risk Manag. 2020-5-12
Toxins (Basel). 2018-5-29
Coron Artery Dis. 2025-1-1
Int J Mol Sci. 2024-8-9
Cureus. 2024-7-17
Mol Biomed. 2023-10-18
Front Med (Lausanne). 2022-10-28
Front Cell Dev Biol. 2020-11-30
Cardiovasc Res. 2022-1-7
Trends Biotechnol. 2020-10
Vasc Health Risk Manag. 2020-5-12
Front Pharmacol. 2020-5-8
JACC Basic Transl Sci. 2020-4-27