淋巴系统有利于独特的T. brucei种群的生存
Henrique Machado1, António Temudo1,2, Mariana De Niz1
1Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa 1649-028, Portugal.
Biology open
|October 23, 2023
概括
trypanosoma brucei 殖民淋巴结,特别是那些排泄脂肪和胰腺的淋巴结,利用淋巴血管进行分散. 阻止LYVE-1会阻碍寄生虫的生存,并导致宿主胀.
科学领域:
- 寄生虫学的寄生虫学
- 免疫学 免疫学 免疫学
- 传染性疾病 传染性疾病
背景情况:
- trypanosoma brucei 感染哺乳动物宿主,殖民血管和器官.
- 淋巴结和淋巴系统与寄生虫的分布和宿主殖民有关.
- 在感染期间缺少淋巴管中宿主-寄生虫相互作用的动态可视化.
研究的目的:
- 想象和分析Trypanosoma brucei在淋巴结和淋巴血管中的分布和行为.
- 识别淋巴结殖民的主要部位,了解淋巴系统在寄生虫传播中的作用.
- 研究淋巴系统改变对寄生虫生存和宿主病理学的影响.
主要方法:
- 采用了内显微镜和ex vivo成像技术.
- 对20组淋巴结中寄生虫分布的分析.
- 研究LYVE-1封锁对寄生虫生存的影响.
主要成果:
- 淋巴结的殖民性各不相同,淋巴结中寄生虫负载最高,淋巴结排水淋巴腺白脂肪组织和胰腺.
- 淋巴血管系统对于Trypanosoma brucei的分散至关重要;LYVE-1封锁损害了寄生虫的生存.
- 淋巴血管中的寄生虫与血液中的寄生虫相比,表现出不同的形态和行为.
- 在感染期间观察到淋巴结和淋巴血管系统的显著变化,导致宿主胀.
结论:
- 淋巴结被Trypanosoma brucei殖民是特定于某个部位的,有利于排泄关键组织的淋巴结.
- 淋巴血管系统对于寄生虫的传播和生存至关重要,这突出了LYVE-1作为潜在的治疗点.
- 清晰的宿主-寄生虫相互作用发生在淋巴与血液血管系统之间,表明分隔.
- 感染Trypanosoma brucei会导致淋巴系统发生显著的病理变化,导致全身.
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