宿主5-HT通过调节蚊子线粒体恒温作用影响蚊子中的Plasmodium传播
Li Gao1,2, Benguang Zhang3, Yuebiao Feng1,2
1State Key Laboratory of Genetic Engineering, School of Life Sciences, Department of Infectious Diseases, Zhongshan Hospital, Fudan University, Shanghai, P.R. China.
PLoS pathogens
|October 15, 2024
概括
疟疾感染降低了一个关键的血液代谢物,5-基三胺 (5-HT). 补充5-HT可以通过影响线粒体来提高蚊子对疟疾寄生虫的免疫力.
科学领域:
- 寄生虫学的寄生虫学
- 代谢学 代谢学 代谢学
- 载体生物学 载体生物学
背景情况:
- 疟疾寄生虫在血液阶段感染期间改变宿主代谢.
- 主体代谢变化对蚊子传播疟疾的影响还未得到充分研究.
- 阿诺菲莱斯蚊子是疟疾寄生虫的载体.
研究的目的:
- 研究宿主代谢变化对疟疾寄生虫传播的影响.
- 确定托代谢物5-基胺 (5-HT) 在蚊子疟疾寄生虫感染中的作用.
主要方法:
- 在人类和小鼠中测量了5-HT水平感染了Plasmodium.
- 评估了5-HT补充剂对阿诺菲莱斯斯蒂芬西对Plasmodium berghei耐药性的影响.
- 研究了5-HT对蚊子线粒体和线粒细胞的作用机制.
- 研究了小鼠血清中5-HT含量升高对蚊子寄生虫感染的影响.
主要成果:
- 疟原虫感染显著降低了人类和小鼠的5-HT水平,随后降低了蚊子的5-HT水平.
- 口服5-HT补充剂通过增加线粒体活性氧物种,增强了Anopheles stephensi对P. berghei的抵抗力.
- 5-HT诱导了功能障碍线粒体的积累,通过抑制线粒体.
- 增加的小鼠血清5-HT水平抑制了蚊子中的寄生虫感染.
结论:
- 主体血液代谢物在确定蚊子控制疟疾寄生虫感染的能力方面发挥着至关重要的作用.
- 5-HT是影响疟疾传播动态的关键代谢物.
- 准宿主代谢物可能为疟疾控制提供新的策略.
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