使用RNA-seq的Toxocara canis幼虫在体外宏环乳暴露的转录反应
Theresa A Quintana1, Matthew T Brewer2, Jeba R J Jesudoss Chelladurai1
1Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA; Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA.
International journal for parasitology. Drugs and drug resistance
|September 22, 2025
概括
宏循环乳 (MLs) 在Toxocara canis幼虫中广泛影响基因表达,影响关键的生物过程. 这项研究揭示了ivermectin和moxidectin如何改变寄生虫基因调节,为药物耐药性机制提供了新的见解.
科学领域:
- 兽医寄生虫学 兽医寄生虫学
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 毒犬 (Toxcara canis) 引起动物性毒病,是犬类的寄生虫.
- 宏循环乳 (MLs) 能够有效地治疗成年T. canis,但不能治疗体质的第三阶段幼虫.
- 了解幼虫对MLs的反应对于开发新疗法至关重要.
研究的目的:
- 为了描述T. canis的转录组,用ivermectin和moxidectin治疗的第三阶段幼虫.
- 识别差异表达基因 (DEG) 和受影响的生物通路.
- 分析已知的ML目标的表达,包括谷氨酸化通道 (GluCls) 和ATP结合盒 (ABC) 载体.
主要方法:
- 在体外处理T. canis第三阶段幼虫,使用10μM的ivermectin或moxidectin.
- 转录组分析 (RNA测序) 以识别DEGs.
- 对于线虫类的基因分析,以赋予基因命名法.
主要成果:
- 艾弗梅克丁治疗导致608个DEG (453个上调,155个下调).
- 莫西德治疗导致1413个DEG (902个上调,511个下调).
- DEGs参与了转录调节,新陈代谢,繁殖和宿主-寄生虫相互作用. 两个GluCls和八个ABCB基因的表达,包括P-糖蛋白,发生了显著的改变.
结论:
- 临界值广泛影响T. canis幼虫的转录调节.
- ML治疗影响了对寄生虫生存和传染性至关重要的关键生物过程.
- 这些发现为了解ML耐药性和开发针对T. canis幼虫的新型治疗策略提供了基础.
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