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12/15-氧基因酶基因破坏减弱了LDL受体缺乏的小鼠中的腺体发生
1Institute of Lipid and Atherosclerosis Research, Sheba Medical Center, Tel-Hashomer, Sackler Faculty of Medicine, Tel-Aviv University, Israel.
Circulation
|October 3, 2001
概括
酶12/15-氧化酶 (12/15-LO) 在缺乏LDL受体的小鼠中显著促进动脉样硬化. 抑制12/15-LO可减少斑块形成,突出其在心血管疾病进展中的作用.
科学领域:
- 心血管研究研究心血管研究
- 脂质代谢 脂质代谢是什么
- 酶学 是一种酶学.
背景情况:
- 人类15-氧酶 (LO) 和小鼠12/15-LO氧化脂肪酸在脂蛋白和脂中.
- 这些氧化产品具有动性质,这表明LOs在动生成中的作用.
- 之前关于LOs在动脉动脉产生中的作用的体内研究产生了相互矛盾的结果.
研究的目的:
- 调查12/15-氧酶 (12/15-LO) 在小鼠动脉动脉生成中的特定作用.
- 在小鼠模型中评估12/15-LO缺乏对动脉样硬化斑块发育的影响.
主要方法:
- 交叉LDL受体缺乏 (LDL-R(-/-)) 鼠标与12/15-LO敲击鼠标,以产生双敲击鼠标.
- 开始高脂肪饮食,并在18周内评估动脉样硬化斑块的形成.
- 分析了斑块细胞组成,包括巨细胞和T淋巴细胞含量.
主要成果:
- 动脉样性病变在LDL-R/12/15-LO-双击的小鼠显著减少,而不是LDL-R ((-/-) 的小鼠.
- 在多个时间点 (3,9,12,18周) 和整个大动脉中观察到减少了斑块形成.
- 两组之间没有发现斑块巨细胞或T淋巴细胞含量的显著差异.
结论:
- 12/15-脂氧酶 (12/15-LO) 在LDL受体缺乏的小鼠中促进动脉动脉生成方面发挥着主导作用.
- 向12/15-LO可能是减少动脉样硬化的潜在治疗策略.
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