EHEC的新型粘附因子研究进展

被引:6
作者
韩燃 [1 ]
房华丽 [2 ]
郭峰 [2 ]
廖鹏运 [1 ]
李锐 [1 ]
李文平 [1 ]
机构
[1] 湖南农业大学动物医学院
[2] 军事医学科学院微生物流行病研究所
关键词
肠出血性大肠杆菌; 粘附因子; 粘附作用;
D O I
10.13241/j.cnki.pmb.2014.02.046
中图分类号
R516 [杆菌传染病];
学科分类号
100401 ;
摘要
肠出血性大肠杆菌(enterohemorrhage E.coli,EHEC)是一种重要的人畜共患病,世界各地包括中国都有不同规模的暴发流行。EHEC有多种血清型,其中毒力最强血清型是O157:H7。EHEC O157:H7感染除可使人发生常规腹泻外,还可在5%-10%的病例中引发严重并发症,甚至死亡。该菌是重要的食源性致病菌,危害严重,缺乏有效的防治手段,而抗生素治疗可能会加剧溶血性尿毒症(haemolutic uraemic syndrome,HUS)。由于以上特点EHEC O157:H7成为世界公共卫生问题,引起微生物学家和公共卫生工作者的广泛关注。目前,临床针对EHEC感染只是对症治疗和适当的抗菌治疗。粘附是EHEC感染宿主细胞的第一步,没有这一步,细菌和宿主肠道细胞之间不会发生任何的相互作用,而且对于许多病原菌来说,粘附具有宿主特异性。本文概述了EHEC的流行病学及粘附机理,并对近年在EHEC研究中的发现一些新型粘附因子和一些假设的定植因子的研究背景及作用机理作一综述。
引用
收藏
页码:372 / 376
页数:5
相关论文
共 13 条
[1]  
Characterisation of the Escherichia coli strain associated with an outbreak of haemolytic uraemic syndrome in Germany, 2011: a microbiological study[J] . The Lancet Infectious Diseases . 2011 (9)
[2]  
A rapid procedure for the detection and isolation of enterohaemorrhagic Escherichia coli (EHEC) serogroup O26, O103, O111, O118, O121, O145 and O157 strains and the aggregative EHEC O104:H4 strain from ready-to-eat vegetables[J] . Markus Tzschoppe,Annett Martin,Lothar Beutin.International Journal of Food Microbiology . 2011 (1)
[3]   Isolation and characteristics of sorbitol-fermenting Escherichia coli O157 strains from cattle [J].
Lee, John Hwa ;
Choi, Su-Jeong .
MICROBES AND INFECTION, 2006, 8 (08) :2021-2026
[4]   Expression of the Escherichia coli IrgA homolog adhesin is regulated by the ferric uptake regulation protein [J].
Rashid, Rebecca A. ;
Tarr, Phillip I. ;
Moseley, Steve L. .
MICROBIAL PATHOGENESIS, 2006, 41 (06) :207-217
[5]  
The long polar fimbriae genes identified in Shiga toxin-producing Escherichia coli are present in other diarrheagenic E. coli and in the standard E. coli collection of reference (ECOR) strains[J] . Claudia Toma,Naomi Higa,Sunao Iyoda,Marta Rivas,Masaaki Iwanaga.Research in Microbiology . 2005 (2)
[6]  
Identification of putative adhesin genes in shigatoxigenic Escherichia coli isolated from different sources[J] . M. Tatarczak,K. Wieczorek,B. Possē,J. Osek.Veterinary Microbiology . 2005 (1)
[7]  
Verotoxigenic Escherichia coli from animals, humans and foods: who’s who?[J] . J.G.Mainil,G.Daube.Journal of Applied Microbiology . 2005 (6)
[8]  
Characterization of the second long polar (LP) fimbriae of Escherichia coli O157:H7 and distribution of LP fimbriae in other pathogenic E. coli strains[J] . Alfredo G. Torres,Kristen J. Kanack,Christopher B. Tutt,Vsevolod Popov,James B. Kaper.FEMS Microbiology Letters . 2004 (2)
[9]  
Enteropathogenic Escherichia coli : unravelling pathogenesis[J] . Huiwen Deborah Chen,Gad Frankel.FEMS Microbiology Reviews . 2004 (1)
[10]   Presence in bovine enteropathogenic (EPEC) and enterohaemorrhagic (EHEC) Escherichia coli of genes encoding for putative adhesins of human EHEC strains [J].
Szalo, IM ;
Goffaux, F ;
Pirson, V ;
Piérard, D ;
Ball, H ;
Mainil, J .
RESEARCH IN MICROBIOLOGY, 2002, 153 (10) :653-658