flrA, flrB and flrC regulate adhesion by controlling the expression of critical virulence genes in Vibrio alginolyticus.

flrA, flrB and flrC regulate adhesion by controlling the expression of critical virulence genes in Vibrio alginolyticus.
复制标题

flrA、flrB 和 flrC 通过控制溶藻弧菌关键毒力基因的表达来调节粘附

DOI:
10.1038/emi.2016.82
复制
发表时间:
2016-08-03
影响因子:
13.2
通讯作者:
Yan, Qingpi
Yan, Qingpi
中科院分区:
医学2区
文献类型:
--
作者:
Luo, Gang;Huang, Lixing;Su, Yongquan;Qin, Yingxue;Xu, Xiaojin;Zhao, Lingmin;Yan, Qingpi

文献摘要

参考文献

被引文献

相似文献

粘附是溶藻弧菌的重要毒力特征。细菌粘附受环境条件影响;然而,这种效应背后的分子机制仍然未知。在 Cu2+、Pb2+、Hg2+ 和低 pH 胁迫下培养的粘附缺陷型溶藻弧菌菌株中 flrA、flrB 和 flrC 的表达水平显着下调。沉默这些基因会导致粘附、运动、鞭毛组装、生物膜形成和胞外多糖(EPS)产生方面的缺陷。在所有 RNAi 组中,fliA、flgH、fliS、fliD、cheR、cheV 和 V12G01_22158(基因 ID)的表达水平均显着下调,而 toxT、ctxB、acfA、hlyA 和 tlh 的表达水平在 flrA 和 flrC 沉默组中上调。这些基因在大多数致病性弧菌的毒力机制中发挥着关键作用。此外,flrA、flrB和flrC的表达受温度、盐度、饥饿和pH的显着影响。这些结果表明:(1)flrA、flrB和flrC对于溶藻弧菌的粘附具有重要作用; (2) flrA、flrB和flrC通过控制参与这些表型的关键基因的表达,显着影响细菌粘附、运动、生物膜形成和EPS产生; (3)flrA、flrB和flrC在不同温度、pH值、盐度和饥饿时间的自然环境中调节粘附。新兴微生物与感染 (2016) 5, e85; doi:10.1038/emi.2016.82; 2016 年 8 月 3 日在线发布
Adhesion is an important virulence trait of Vibrio alginolyticus. Bacterial adhesion is influenced by environmental conditions; however, the molecular mechanism underlying this effect remains unknown. The expression levels of flrA, flrB and flrC were significantly downregulated in adhesion-deficient V. alginolyticus strains cultured under Cu2+, Pb2+, Hg2+ and low-pH stresses. Silencing these genes led to deficiencies in adhesion, motility, flagellar assembly, biofilm formation and exopolysaccharide (EPS) production. The expression levels of fliA, flgH, fliS, fliD, cheR, cheV and V12G01_22158 (Gene ID) were significantly downregulated in all of the RNAi groups, whereas the expression levels of toxT, ctxB, acfA, hlyA and tlh were upregulated in flrA- and flrC-silenced groups. These genes play a key role in the virulence mechanisms of most pathogenic Vibrio species. Furthermore, the expression of flrA, flrB and flrC was significantly influenced by temperature, salinity, starvation and pH. These results indicate that (1) flrA, flrB and flrC are important for V. alginolyticus adhesion; (2) flrA, flrB and flrC significantly influence bacterial adhesion, motility, biofilm formation and EPS production by controlling expression of key genes involved in those phenotypes; and (3) flrA, flrB and flrC regulate adhesion in the natural environment with different temperatures, pH levels, salinities and starvation time. Emerging Microbes & Infections (2016) 5, e85; doi:10.1038/emi.2016.82; published online 3 August 2016
DOI: 10.1111/j.1365-2958.2012.07976.x
发表时间: 2012-04-01
影响因子: 3.6
作者:
Jorgensen, Mikkel Girke;Nielsen, Jesper S.;Valentin-Hansen, Poul
通讯作者: Valentin-Hansen, Poul
DOI: 10.1371/journal.ppat.1000902
发表时间: 2010-05-13
期刊: PLoS pathogens
影响因子: 6.7
作者:
Bergstrom KS;Kissoon-Singh V;Gibson DL;Ma C;Montero M;Sham HP;Ryz N;Huang T;Velcich A;Finlay BB;Chadee K;Vallance BA
通讯作者: Vallance BA
DOI: 10.1038/emi.2015.69
发表时间: 2015-11
影响因子: 13.2
作者:
Ding Y;Zhu D;Zhang J;Yang L;Wang X;Chen H;Tan C
通讯作者: Tan C
DOI: 10.1007/s10482-015-0411-9
发表时间: 2015-05
影响因子: 2.6
作者:
Kong, Wendi;Huang, Lixing;Su, Yongquan;Qin, Yingxue;Ma, Ying;Xu, Xiaojin;Lin, Mao;Zheng, Jiang;Yan, Qingpi
通讯作者: Yan, Qingpi
DOI: 10.1128/aem.63.3.1034-1039.1997
发表时间: 1997-03-01
影响因子: 4.4
作者:
Garcia, T;Otto, K;Nelson, DR
通讯作者: Nelson, DR