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1.5 ml microtube

Company: Safe-Lock Tube
Catalog#: 30120086
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Liposomal Clodronate-mediated Macrophage Depletion in the Zebrafish Model
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2021-03-20
[Abstract]  

The ability to conduct in vivo macrophage-specific depletion remains an effective means to uncover functions of macrophages in a wide range of physiological contexts. Compared to the murine model, zebrafish offer superior imaging capabilities due to their optical transparency starting from a single-cell stage to throughout larval development. These qualities become important for in vivo cell specific depletions so that the elimination of the targeted cells can be tracked and validated in real time through microscopy. Multiple methods to deplete macrophages in zebrafish are available, including genetic (such as an irf8 knockout), chemogenetic (such as the nitroreductase/metronidazole system), and toxin-based depletions (such as using clodronate liposomes). The use of clodronate-containing

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[摘要]  [摘要]为了进行能力在体内巨噬细胞比耗尽仍然是有效的手段,在广泛的生理环境的巨噬细胞的揭开功能。与鼠模型相比,斑马鱼具有良好的成像能力,因为它们的光学透明性从单细胞阶段到整个幼体发育期开始。这些素质成为重要的体内细胞特异的枯竭,使靶细胞的消除可以跟踪并通过显微镜进行实时验证。多种方法以耗尽巨噬细胞在斑马鱼中是可用的,包括遗传(如IRF8敲除),chemogenetic(如在 硝基还原酶/甲硝唑系统)和基于毒素的消耗(例如使用氯膦酸盐脂质体)。在吞噬脂质体后,使用含氯膦酸盐的脂质体诱导巨噬细胞凋亡可有效地消耗巨噬细胞并测试其吞噬能力。在这里,我们描述了通过静脉注射补充有荧光右旋糖酐共轭物的脂质体氯膦酸盐对斑马鱼幼虫体内巨噬细胞进行系统耗竭的详细方案。与荧光右旋糖酐共注射可以实时跟踪巨噬细胞耗竭情况,从验证静脉内注射成功到摄取巨噬细胞分子及其最终死亡开始。为了验证高度的巨噬细胞耗竭,可以在幼虫早期进行氯膦酸盐注射时通过快速中性红色活体染料染色来确定脑巨噬细胞(小胶质细胞)的清除水平。

图形概要:

幼虫斑马鱼脂质体氯膦酸盐体内巨噬细胞特异性清除的实验工作流程


[背景]巨噬细胞是先天免疫系统的关键组成部分,并响应于感染,无菌性炎症,与环境变化中发挥重要作用。使巨噬细胞功能与不同生理环境中相互作用细胞类型的复杂混合物脱钩的最有效方法之一是能够特异性消除巨噬细胞并分析表型结果。小鼠中的此类耗竭实验为巨噬细胞的作用提供了很多见识(Hua等人,2018; ...

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