来自蚊子共生体的外膜囊泡通过酸丁胆清理途径向杀死Plasmodium寄生虫
Han Gao1,2, Yongmao Jiang1,2, Lihua Wang1,2
1CAS Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China.
Nature communications
|August 24, 2023
概括
蚊子中的共生细菌通过外膜囊泡 (OMV) 提供抗Plasmodium效应蛋白. 这些OMV向疟疾寄生虫,为阻止疟疾传播提供了一种新的策略.
科学领域:
- 微生物学 微生物学
- 寄生虫学的寄生虫学
- 载体生物学 载体生物学
背景情况:
- 肠道微生物群影响蚊子中的等离子体感染.
- 从共生动物传递到Plasmodium的效应蛋白的机制在很大程度上是未知的.
研究的目的:
- 阐明肠道共生细菌为疟疾寄生虫提供抗Plasmodium效应体的机制.
- 研究外膜囊泡 (OMVs) 在这个过程中的作用.
主要方法:
- 研究了细菌Serratia ureilytica Su_YN1及其效应性脂酶AmLip.
- 分析了外膜囊泡 (OMVs) 在效应器传递中的作用.
- 研究了OMVs,血清成分和Plasmodium寄生虫之间的相互作用.
主要成果:
- 塞拉提亚 ureilytica Su_YN1通过OMVs传递效应器AmLip到菌.
- 宿主血清诱导含有AmLip的OMV释放,它向疟疾寄生虫.
- OMV 含有像类胆这样的血清脂质,有助于寄生虫的吸收和杀死.
结论:
- 肠道共生衍生的OMVs作为跨王国通信的载体,为Plasmodium提供效应体.
- 这种机制使蚊子难以抵抗Plasmodium感染.
- OMVs代表了阻止疟疾传播的潜在策略.
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