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Author:
Date:
2017-05-05
[Abstract] Listeria monocytogenes is an important Gram-positive foodborne pathogen that is a particular problem in ready-to-eat food. It has an ability to survive in harsh conditions like refrigeration temperatures and high salt concentrations and is known to cross intestinal, placental and blood-brain barriers. Several cancerous cell lines like cervical, liver, dendritic, intestinal and macrophages have been used to study in vitro propagation and survival of listeria in human cells. Human intestinal epithelial cells have been used to study how listeria crosses the intestinal barrier and cause infection. The protocol in this articles describes the procedures to grow Caco-2 cells, maintain cells and use them for adhesion and invasion assays. During adhesion assay the cells are ...
[摘要] 单核细胞增生利斯特氏菌是一种重要的革兰氏阳性食源性病原体，是即食食品中的一个特殊问题。它具有在诸如制冷温度和高盐浓度的恶劣条件下生存的能力，并且已知可以穿过肠，胎盘和血脑屏障。已经使用了诸如子宫颈，肝脏，树突状细胞，肠和巨噬细胞的几种癌细胞系来研究人细胞中李斯特菌的体外扩增和存活。人肠上皮细胞已被用于研究李斯特菌如何穿过肠屏障并引起感染。本文中的方案描述了生长Caco-2细胞的过程，维持细胞并将其用于粘附和侵袭测定。在粘附测定期间，将细胞与李斯特菌孵育30分钟，但是在侵袭测定中，细胞生长在感染后的几个时间点被停止以监测细胞中李斯特菌的生长和存活率。
背景 ...
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