过高甘油三血是腹腔大动脉动脉瘤发育和破裂的关键因素:从遗传和实验模型的见解
medRxiv : the preprint server for health sciences
|August 30, 2024
概括
高水平的甘油三显著增加腹腔大动脉瘤 (AAA) 的风险和严重程度. 管理富含甘油三脂的脂蛋白,可能与反感性寡核酸治疗,为AAA提供了一个有前途的治疗策略.
科学领域:
- 血管生物学 血管生物学
- 脂质代谢 脂质代谢是什么
- 遗传学 遗传学是一种遗传学.
背景情况:
- 腹腔大动脉瘤 (AAA) 是一种危险的血管疾病,缺乏有效的药物治疗.
- 富含甘油三 (TG) 的脂蛋白与AAA风险之间的因果关系需要进一步调查.
研究的目的:
- 调查高TG丰富脂蛋白在AAA病变发生过程中的因果作用.
- 探索TG度对AAA发育和断裂的影响.
- 为了确定AAA治疗的治疗点.
主要方法:
- 整合遗传,蛋白质组和代谢组数据.
- 使用了三种过高甘油三血症小鼠模型 (Lpl缺乏,Apoa5缺乏,APOC3转基因).
- 用于针对Angptl3.3的反感性寡核酸.
主要成果:
- 高的TG度加快了AAA的发展和破裂,以剂量依赖的方式.
- 高TG和palmitate抑制了lysyl氧化酶成熟,这对细胞外基质完整性至关重要.
- 针对Angptl3的反感性寡核酸治疗通过降低TG.有效地抑制了AAA进展.
结论:
- 过高甘油三血是AAA病变发生的一个关键驱动因素.
- 对富含TG脂蛋白的管理是AAA的关键治疗策略.
- 用反感性寡核酸向肝脏ANGPTL3显示了AAA风险降低的潜力.
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