Deletion of the two-component histidine kinase gene (CHK1) of Candida albicans contributes to enhanced growth inhibition and killing by human neutrophils in vitro.
نویسندگان
چکیده
We have observed that human neutrophils (polymorphonuclear leukocytes [PMNs]) have an increased growth-inhibitory and killing effect on a strain of Candida albicans with a deletion of CHK1, a gene encoding a putative histidine kinase. The PMN effect was not due to increased phagocytosis of the null strain. This observation may partially explain the reduced virulence in a hematogenously disseminated murine model of candidiasis.
منابع مشابه
Studies on the regulation of the two-component histidine kinase gene CHK1 in Candida albicans using the heterologous lacZ reporter gene.
The two-component histidine kinase Chk1p of Candida albicans has been implicated in the regulation of cell wall biosynthesis. Deletion of CHK1 results in avirulence that in part may be due to the increased sensitivity of mutant strains to polymorphonuclear leukocytes. The mutant also does not adhere to human oesophageal tissue in vitro, probably as a consequence of its altered cell wall. In the...
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ورودعنوان ژورنال:
- Infection and immunity
دوره 70 2 شماره
صفحات -
تاریخ انتشار 2002