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DOI: 10.3791/50300-v
Please note that some of the translations on this page are AI generated. Click here for the English version.
这种技术提供了一种方法来收集,标准化和量化,自然原虫的宿主细胞培养的哺乳动物细胞感染前细胞内生长的细菌病原体。此方法可以被修改,以适应各种各样的起动阶段,以及靶细胞类型的宿主细胞。
该程序的总体目标是从中间宿主中收获和定量荧光易处理的细菌,用于随后感染哺乳动物宿主细胞。在这里,表达 GFP 的马拉军团菌用于感染天然宿主原生动物 acan 变形虫、castellani 单层。然后通过选择性裂解收获 el mala,然后使用基于原生动物荧光发射稀释度的公式计算细菌浓度。
然后使用引发的细菌感染哺乳动物细胞单层。最后,使用荧光显微镜、流式细胞术和铺板裂解物的组合来确定哺乳动物细胞中感染性细菌的数量,以回收集落形成单位。所得数据表明,与在人工培养基中培养的相同菌株相比,在引发阶段在原生动物细胞中培养的细菌具有致病优势。
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