内皮细胞保护Schistosoma mansoni免受过氧化引起的死亡
Bruna Oliveira Lopes Souza1, Ronald Alves Dos Santos1, Kelvin Edson Marques de Jesus1
1Global Health and Neglected Diseases Research Laboratory, Gonçalo Moniz Institute, Oswaldo Cruz Foundation (Fiocruz), Salvador, Bahia, Brazil.
PLoS neglected tropical diseases
|January 20, 2026
概括
杆虫 (Schistosoma mansoni) 虫被内皮细胞保护免受宿主氧化防御. 达普森氧胺破坏了这种保护,提供了潜在的新型杆菌病治疗策略.
科学领域:
- 寄生虫学的寄生虫学
- 血管生物学 血管生物学
- 免疫学 免疫学 免疫学
背景情况:
- 曼索尼菌 (Schistosoma mansoni) 引起肠道,在人体血管系统中繁荣发展.
- 目前的PZQ治疗疗效正在下降,需要新的治疗方法.
- 调节宿主抗氧化反应是一个潜在的策略,以达为例.
研究的目的:
- 研究内皮细胞在保护Schistosoma mansoni免受宿主氧化压力的作用.
- 探索达普森氧胺对寄生虫在内皮细胞和催化酶的存在下对寄生虫生存的影响.
主要方法:
- 从受感染的小鼠中收集成年S. mansoni虫.
- 培养人类静脉内皮细胞 (HUVEC) 并将其暴露在虫和PZQ.
- 通过qPCR分析抗氧化剂基因表达 (NRF2,SOD1,GPx,GSR,CAT).
- 用H2O2,HUVECs,catalase和dapson氧胺评估在氧化应激下生存能力.
主要成果:
- 内皮细胞保护S. mansoni虫免受过氧化引起的氧化应激.
- 达普森氧胺逆转了酶的保护作用,降低了虫的生存能力.
- 虫在使用HUVEC时仍然具有生存能力,这表明除了catalase之外还有额外的保护机制.
结论:
- 内皮细胞在保护S. mansoni免受宿主氧化防御方面发挥着重要作用.
- 达普森氧胺通过抑制酶来干扰寄生虫保护.
- 准宿主-寄生虫界面和抗氧化剂环境为istosomiasis提供了有前途的治疗途径.
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