在Trypanosoma brucei中抗原变化的体内动态
Monica R Mugnier1, George A M Cross1, F Nina Papavasiliou2
1Laboratory of Lymphocyte Biology, The Rockefeller University, New York, NY, USA. Laboratory of Molecular Parasitology, The Rockefeller University, New York, NY, USA.
概括
非洲睡眠病寄生虫Trypanosoma brucei在感染期间多样化其表面外衣蛋白 (VSG). 新的方法揭示了比以前理解的更多的多样性和新的多样化机制.
科学领域:
- 寄生虫学的寄生虫学
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
背景情况:
- 虫 (Trypanosoma brucei) 是导致非洲睡眠病的原因.
- 避开VSG外套是寄生虫生存的关键.
- 感染期间的VSG表达动态尚不清楚.
研究的目的:
- 量化检查T. brucei种群中的VSG多样性.
- 在体内监测VSG种群动态.
- 为了了解VSG基因谱的多样化.
主要方法:
- 开发了一种新的VSG组装方法.
- 对表达的VSG进行定量分析.
- 在体内监测VSG种群动态.
主要成果:
- 在T. brucei种群中揭示了意想不到的多样性.
- 确定了一种用于VSG剧集多样化的新机制.
- 在体内表现出动态VSG表达.
结论:
- T. brucei与宿主之间的相互作用比以前认为的更为动态.
- 寄生虫VSG多样性在免疫逃避中起着至关重要的作用.
- 新的方法使得我们能够更深入地了解试种群群体动态.
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