饮食调节对循环的细胞外囊泡的影响
Jacopo Burrello1, Fabrizio Buffolo1, Brooke Honzel2
1Division of Internal Medicine and Hypertension Unit, Department of Medical Sciences, University of Torino, Italy. (J.B., F.B., M.T., V.C., P. Mulatero, S.M.).
Hypertension (Dallas, Tex. : 1979)
|October 23, 2025
概括
高摄入量会改变循环中的细胞外囊泡 (EVs),影响免疫和血管细胞. 这些EV可能通过RhoA激活和ICAM-1表达等途径驱动内皮功能障碍.
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:
- 食中的在生理过程中起着至关重要的作用,如液体平衡和免疫功能.
- 高 (HS) 消费与不良健康结果有关,包括高血压和内皮功能障碍.
- 细胞外囊泡 (EVs) 是细胞衍生的纳米粒子,可以调解食和血管/免疫变化之间的联系.
研究的目的:
- 为了在饮食中调节后对循环的EV进行表征.
- 为了研究这些EV在体外对内皮细胞的功能影响.
- 探索EVs在HS条件下影响内皮功能的分子机制.
主要方法:
- 50名参与者接受了控制的饮食干预 (限制与加载).
- 血清EV被分离并使用流细胞计分析,生物信息学识别了EV表面抗原标.
- 人类微血管内皮细胞用患者衍生的EVs进行治疗,以评估功能变化.
主要成果:
- 高饮食增加了免疫 (CD14,CD25,CD40),凝血/血小板 (CD29,CD42,CD62P) 和内皮细胞 (CD31) 标记物的EV水平.
- 来自HS饮食的EV增加了内皮RhoA激活和ICAM-1表达,同时降低了AKT1和增加了MAPK3.
- 此外,EV还增加了氧化水平和ICAM-1阳性内皮细胞的数量.
结论:
- 食中的显著调节循环EVs的表面抗原表达.
- 电动汽车可能充当高对血管健康有害影响的调解者.
- EVs与内皮细胞相互作用,影响诸如RhoA激活和ICAM-1表达等途径,导致血管炎症.
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