相关实验视频
Updated: Jul 14, 2025

09:53
In vivo Imaging of Transgenic Leishmania Parasites in a Live Host
Published on: July 27, 2010
16.0K
人类莱什曼病的细胞介质:杀死寄生虫或疾病进展的关键决定因素
F Divenuto1, N Marascio1, A Quirino1
1Clinical Microbiology Unit, Department of Health Sciences, "Magna Græcia" University of Catanzaro, 88100 Catanzaro, Italy.
Acta tropica
|October 7, 2023
概括
不同的Leishmania物种在人类中引发不同的免疫反应,影响细胞因子和氧化 (NO) 水平. 这项研究揭示了Th1,Th2,Treg和Breg细胞因子的特定物种调节,为新的莱什曼病治疗提供了洞察力.
科学领域:
- 免疫学 免疫学 免疫学
- 传染性疾病 传染性疾病
- 寄生虫学的寄生虫学
背景情况:
- 在早期人类莱什曼病时,关于细胞免疫媒介的数据有限.
- 了解这些早期免疫反应对于开发有效的治疗方法和疫苗至关重要.
研究的目的:
- 在人类外周血液单核细胞 (PBMCs) 中研究四种莱什马尼亚物种诱导的早期免疫媒介特征.
- 为了比较Th1,Th2,Treg,Breg细胞因子,MCP-1和氧化物 (NO) 的调节,使用了Leishmania infantum,L. major,L. donovani和L. tropica.
主要方法:
- 人类PBMCs被刺激的感染性转环性L.婴儿*,L.大*,L.多诺瓦尼*和*L.热带*.
- 在刺激4小时后,TNFα,IL-1β,IL-6,IL-4,IL-10,IL-35,MCP-1和NO的水平被量化.
主要成果:
- *L. major*,*L. donovani*和*L. tropica*显著增加了TNFα,IL-1β和IL-6,而*L. infantum*显示TNFα诱导程度较低.
- 与L. major*和L. tropica*相比,在L. infantum*和L. donovani*中观察到较高的IL-4,IL-10和IL-35水平.
- 这项研究是首次报告这四种Leishmania物种对人类细胞IL-35水平的影响.
结论:
- 不同的*Leishmania*物种不同调节Th1,Th2,Treg和Breg细胞因子配置和NO释放.
- 寄生虫细胞产物的变异,如脂糖 (LPG),可能解释了特定物种的免疫反应.
- 这些发现为开发针对莱什曼病的新疗法和疫苗接种策略提供了基础.
更多相关视频
10:01Quantification of Intracellular Growth Inside Macrophages is a Fast and Reliable Method for Assessing the Virulence of Leishmania Parasites
Published on: March 16, 2018
10.6K
06:57In Vivo Infection with Leishmania amazonensis to Evaluate Parasite Virulence in Mice
Published on: February 20, 2020
8.3K
相关概念视频
T Cell Types and Functions
1.0K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.0K
Cell-mediated Immune Responses
68.7K
Overview
68.7K