在严重传染病中,潜在的治疗策略和针对血管透性的药物
1Graduate School of Pharmaceutical Sciences, Osaka University.
Biological & pharmaceutical bulletin
|March 3, 2024
概括
开发针对血管超透性的药物对于COVID-19等严重感染至关重要. 增强内皮细胞结合蛋白,如Robo4,在抑制血管透性和改善疾病模型的结果方面显示出希望.
科学领域:
- 血管生物学 血管生物学
- 传染病病理学 传染病病理学
- 药物发现 药物发现
背景情况:
- 严重的感染,包括COVID-19,涉及病原体暴露,免疫激活,细胞因子释放和血管透性.
- 目前的治疗方法解决了前三个因素,但没有解决血管过性,因此需要新的治疗策略.
- 严重急性呼吸系统综合征冠状病毒2 (SARS-CoV-2) 感染通过抑制Claudin-5 (CLDN5) 表达,一个关键的内皮细胞结合蛋白,增加血管透性.
研究的目的:
- 审查SARS-CoV-2诱导的血管超透性的机制.
- 为了确定增强内皮细胞 (EC) 连接蛋白的抑制剂.
- 评估这些抑制剂在COVID-19和内毒素模型中的疗效.
主要方法:
- 对SARS-CoV-2对克劳丁-5 (CLDN5) 表达和血管透性的影响的分析.
- 研究CLDN5在EC粘附中的作用及其抑制/增强.
- 检查Roundabout4 (Robo4) 过度表达和ALK1抑制剂在内毒性和SARS-CoV-2感染的小鼠模型中的影响.
主要成果:
- SARS-CoV-2 抑制了 CLDN5,增加了血管透性,并导致了病理.
- 增强CLDN5的表达减轻了SARS-CoV-2引起的内皮过性.
- 在疾病模型中,Robo4过度表达和ALK1抑制剂降低了血管透性和死亡率.
结论:
- 增加Robo4表达的药物,如ALK1抑制剂,在内毒性和SARS-CoV-2感染模型中有效抑制血管过性和死亡率.
- 通过增强内皮细胞结合蛋白来准血管超透性,代表了严重感染的有希望的治疗途径.
- 增强机器人4疗法有可能用于治疗COVID-19和其他以血管泄漏为特征的疾病.
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