植物源性细胞外囊泡对高糖环境下血管内皮细胞影响机制的研究

王 婳1, 王洪 瑾*2
1、青海大学临床医学院
2、青海大学附属医院

摘要


糖尿病是一种由异常高血糖水平诊断的内分泌系统疾病,是全球最常见和增长最快的疾病之一,预计到2045年将影响6.93亿成年人。据国际糖尿病联合会(IDF)数据,全球患者数量持续增长[1],已成为威胁人类健康的重大公共卫生问题。该病以持续高血糖为核心特征,而长期高血糖状态会诱发多种严重并发症,其中血管内皮细胞损伤是极为关键的病理环节。
  血管内皮细胞(Vascular endothelial cells,VECs)是血管壁的核心组成部分,深度参与血管舒张、血栓形成、炎症调控及血管生成等关键生理过程,对维持血管功能稳定至关重要。高血糖可诱发氧化应激产生大量自由基,攻击细胞的膜结构、蛋白质及核酸;同时促进炎症因子释放,加剧炎症反应;此外还会导致细胞代谢紊乱,直接破坏其生理功能[2]。VECs损伤在糖尿病并发症的发生发展过程中扮演着核心角色。
  植物源性细胞外囊泡(Plant-derived extracellular vesicles,PEVs)是植物细胞分泌的一种纳米级囊泡[3],近年来,对其研究逐渐增多。PEVs携带了多种生物活性分子,这些分子能够在细胞间传递信息,调节细胞的生理功能。研究发现,PEVs具有抗氧化、抗炎、促进细胞增殖和修复等多种生物学活性,在心血管疾病、神经系统疾病、肿瘤等领域展现出治疗价值。对于高糖环境下受损的VECs,PEVs可能通过调节相关因子的表达,发挥保护和修复作用,可进行糖尿病血管并发症的治疗[4]。因此,深入研究PEVs对高糖环境下VECs相关因子的影响,具有重要的理论意义和临床应用价值。

关键词


植物源性细胞外囊泡;高糖环境;血管内皮细胞;信号通路

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参考


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