索法尔科尼通过激活血氧酶-1-介导的抗病毒干扰素反应来抑制登革热病毒的复制
Yu-Lun Ou1,2, Wei-Chun Chen3, Chia-Hung Yen4
1Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80756, Taiwan.
International journal of molecular sciences
|July 12, 2025
概括
索法尔科尼是一种抗药物,有效抑制登革热病毒 (DENV) 复制. 这种化合物通过促进抗病毒反应,显示出作为DENV感染的新疗法的潜力.
科学领域:
- 病毒学 病毒学
- 药理学 药理学是指药理学的学科.
- 免疫学 免疫学 免疫学
背景情况:
- 登革热病毒 (DENV) 感染通过严重的表现,如登革热出血性发烧和登革热休克综合征,造成严重的死亡风险.
- 迫切需要有效的治疗剂来对抗DENV感染.
- 索法尔科尼是一种已知的胃保护剂,具有抗氧化和抗炎性质.
研究的目的:
- 为了研究索法尔科尼作为抗病毒剂对DENV复制的潜力.
- 阐明索法尔科尼在抑制DENV感染中的作用机制.
- 为了评估sofalcone在DENV感染动物模型中的疗效.
主要方法:
- 在实验室中评估索法尔康对所有四种DENV血清型的疗效,包括确定半最大抑制度 (IC50) 和细胞毒性.
- 使用DENV感染的ICR哺乳小鼠进行体内研究,以评估生存率和病毒标位.
- 机理学研究包括分析血氧酶-1 (HO-1) 表达,核因子-红素2相关因子2 (Nrf2) 途径和干扰素 (IFN) 反应,包括下游抗病毒基因 (OAS1,OAS2,OAS3).
主要成果:
- 索法尔科尼在所有血清型中显著抑制了DENV复制,与DENV血清型2的IC50为28.1±0.42μM,没有显著的细胞毒性.
- 在体内,施用sofalcone显著改善了感染小鼠的生存率,并减少了感染小鼠的病毒载荷.
- 发现索法尔科尼通过Nrf2通路诱导HO-1表达,导致病毒蛋白酶活性抑制和增强抗病毒干扰素反应,包括OAS1,OAS2和OAS3.3的上调.
结论:
- 索法尔科尼在体外和体内都对DENV表现出强大的抗病毒活性.
- 抗病毒机制涉及诱导Nrf2-HO-1通路,从而增强宿主的内在抗病毒防御.
- 鉴于其现有的临床用途,sofalcone代表了一个有前途的候选人,快速开发一种新的登革热治疗方法.
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