DHCR7 表达式预测不良结果和败血症死亡率
Faheem W Guirgis1, Vinitha Jacob2, Dongyuan Wu3
1Department of Emergency Medicine, University of Florida College of Medicine, Jacksonville, FL.
Critical care explorations
|June 19, 2023
概括
败血症患者的不良结果显示胆固醇基因DHCR7.7的表达增加. 通过像AY9944这样的药物向该基因,可以提高败血症存活率.
科学领域:
- 生物化学 生物化学
- 遗传学 遗传学 是一个
- 药理学 药理学是指药理学的学科.
背景情况:
- 败血症导致严重的后果,包括慢性严重疾病 (CCI) 或早期死亡.
- 确定精确的治疗点对于改善败血症患者的治疗结果至关重要.
研究的目的:
- 根据临床结果,调查血症患者的脂质代谢基因表达差异.
- 发现败血症精准医学的新型治疗点.
主要方法:
- 分析了来自败血症患者的白细胞 (衍生和验证队列) 和斑马鱼内毒性模型中的基因表达.
- 利用RNA测序和RT-qPCR进行转录组分析.
- 在斑马鱼模型中测试基于脂质的药物,以验证治疗潜力.
主要成果:
- 胆固醇代谢基因DHCR7 (7-dehydrocholesterol减少酶) 与快速康复的患者相比,在出现不良结果 (CCI,早期死亡) 的败血症患者中显著上调.
- 在斑马鱼败血症模型中证实了DHCR7和其他脂质基因 (DHCR24,SQLEA,CYP51,MSMO1,LDLRA) 的上调.
- DHCR7抑制剂AY9944在致命斑马鱼内毒症模型中显示出完全的救援.
结论:
- DHCR7在不良结果的败血症上调调节需要进一步调查作为潜在的治疗点.
- 准DHCR7胆固醇通路可能提供一种新的策略,以改善败血症患者的生存率和结果.
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