Enterohemorrhagic Escherichia coli promotes the invasion and tissue damage of enterocytes infected with Candida albicans in vitro

文献类型： 外文期刊

第一作者： Yang, Weiming

作者： Yang, Weiming;Wu, Chunrong;Tang, Jianguo;Zhou, Yanjun

作者机构：

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2016 年 6 卷

页码：

收录情况： SCI

摘要： The principal aim of this study was to investigate the in vitro co-infection of Caco-2 cells with Candida albicans and enterohemorrhage Escherichia coli (EHEC). The ability of both species to colonize or invade the Caco-2 cells was evaluated by indirect immunofluorescence and inverted microscopy. The damage to Caco-2 cells was evaluated by measuring lactate dehydrogenase (LDH) activity. C. albicans virulence gene expression (HWP1, ALS3, PLB1, SAP4, and EFG1) was evaluated by quantitative real-time polymerase chain reaction (qRT-PCR). Compared to single infections with enterohemorrhage Escherichia coli or C. albicans, a co-infection colonized or invaded Caco-2 cells more quickly, and C. albicans tended to accumulate more easily, accompanied by the upregulation of related genes. In addition, the LDH activity in the co-infected group was higher than in cells infected with C. albicans or with enterohemorrhage Escherichia coli, accompanied by the upregulation of toxicity-related genes. Using Caco-2 cells as an infection model, this study demonstrated that co-infecting in vitro enterocytes with C. albicans and enterohemorrhage Escherichia coli enhanced the invasiveness and tissue damaging effects of C. albicans.

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