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Yersinia pestis grows within phagolysosomes in mouse peritoneal macrophages.

机译:鼠疫耶尔森氏菌在小鼠腹膜巨噬细胞的吞噬体中生长。

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Transmission electron microscopy was used to determine the intracellular localization of Yersinia pestis growing within cultured resident peritoneal macrophages of mice. Monolayers fixed immediately, or as long as 4.5 h, after infection contained yersiniae closely surrounded by a membrane. The vesicles containing the yersiniae were determined to be phagolysosomes by labeling secondary lysosomes of macrophages with electron-dense particles of thorium dioxide. The presence of the label within vesicles containing yersiniae indicates that this pathogen grows within the lysosomal compartment of its target host cell.
机译:使用透射电子显微镜确定在培养的小鼠腹膜巨噬细胞内生长的鼠疫耶尔森菌的细胞内定位。感染后立即或长达4.5小时固定的单层细胞含有被膜紧紧包裹的耶尔森菌。通过用电子致密二氧化or标记巨噬细胞的次级溶酶体,可以确定含有耶尔森菌的囊泡是吞噬体。含有耶尔森氏菌的囊泡中标记物的存在表明该病原体在其靶宿主细胞的溶酶体区室中生长。

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