高表达的oleoyl-ACP酶是危及生命的呼吸道病毒疾病的基础
Xiaoxiao Jia1, Jeremy Chase Crawford2, Deborah Gebregzabher1
1Department of Microbiology and Immunology, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, VIC 3000, Australia.
Cell
|August 13, 2024
概括
乙烯载体蛋白 (ACP) 酸酶 (OLAH) 导致严重的呼吸道感染. 降低OLAH表达可以防止致命的流感,减少肺炎和病毒载量.
科学领域:
- 病毒学
- 免疫学
- 生物化学
背景情况:
- 呼吸道感染导致严重的发病率和死亡率.
- 导致严重疾病进展的确切机制尚不清楚.
- 确定致命结果的早期分子驱动因素对于治疗干预至关重要.
研究的目的:
- 调查致命禽流感的早期分子驱动因素.
- 确定酸载体蛋白 (ACP) 水解酶 (OLAH) 在严重呼吸道病毒感染中的作用.
主要方法:
- 患有甲型H7N9流感住院患者的转录组分析.
- 死亡患者和康复患者的OLAH表达的比较以及其他呼吸道感染的严重病例和轻微病例.
- 使用感染流感的OLAH缺乏 (olah-/-) 的小鼠进行体内研究.
- 在体外研究评估油酸对病毒复制和巨细胞炎症的影响.
主要成果:
- 高OLAH表达与致命的A ((H7N9) 流感和季节性流感,COVID-19,RSV和MIS-C的严重结果密切相关.
- 在致命的流感感染期间,小鼠的死亡率,肺病毒负载,组织损伤和炎症降低.
- 在OLAH缺乏的小鼠中观察到病毒复制和巨细胞炎症的减少.
- 油酸补充剂增强了病毒复制和巨炎症潜力.
结论:
- 在各种呼吸道病毒感染中,OLAH表达是严重和致命的关键驱动因素.
- 针对OLAH可能是缓解严重呼吸道病毒疾病的新疗法.
- 由OLAH调节的脂肪酸代谢失调有助于病毒病变.
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