首页> 外文期刊>Infection and immunity >Shigella flexneri Phagosomal Escape Is Independent of Invasion
【24h】

Shigella flexneri Phagosomal Escape Is Independent of Invasion

机译:弗氏志贺氏菌噬菌体逃逸独立于入侵

获取原文
           

摘要

Infections with Salmonella enterica serovar Typhimurium and Shigella flexneri result in mucosal inflammation in response to epithelial cell invasion and macrophage cytotoxicity. These processes are mediated by type III secretion systems encoded in homologous virulence loci in the two species, namely, Salmonella pathogenicity island 1 (SPI-1), carried in the genome, and the Shigella entry region (SER), carried in a large virulence plasmid. Here we show that SPI-1 can functionally complement a deletion of SER in S. flexneri, restoring invasion of epithelial cells, macrophage cytotoxicity, and phagosomal escape. Furthermore, S. flexneri phagosomal escape requires the SER and another gene(s) carried on the large virulence plasmid. We demonstrate that the processes of invasion and phagosomal escape can be uncoupled in S. flexneri.
机译:感染沙门氏菌血清鼠伤寒沙门氏菌和志贺氏志贺氏菌感染后,粘膜炎症响应上皮细胞的侵袭和巨噬细胞的细胞毒性。这些过程是由两个物种的同源毒力基因座中编码的III型分泌系统介导的,它们是基因组中携带的 Salmonella 致病岛1(SPI-1)和 Shigella < / em>进入区域(SER),携带在大毒力质粒中。在这里,我们显示SPI-1可以在功能上补充 S中SER的缺失。 flexneri ,恢复上皮细胞的侵袭,巨噬细胞的细胞毒性和吞噬体逃逸。此外, S。弗氏噬菌体的吞噬逃逸需要SER和在大毒力质粒上携带的另一个基因。我们证明入侵和吞噬逃逸的过程可以在 S中解耦。 flexneri

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号