Production of cytolethal distending toxin and other virulence characteristics of Escherichia coli strains of serogroup O86

Production of cytolethal distending toxin and other virulence characteristics of Escherichia coli strains of serogroup O86

Autor Ghilardi, Ângela Cristina Rodrigues Google Scholar
Gomes, Tania Aparecida Tardelli Autor UNIFESP Google Scholar
Trabulsi, Luiz Rachid Google Scholar
Instituição Instituto Adolfo Lutz Seção de Bacteriologia
Universidade Federal de São Paulo (UNIFESP)
Instituto Butantã Laboratório Especial de Microbiologia
Resumo Genetic and phenotypic virulence markers of different categories of diarrhoeagenic Escherichia coli were investigated in 106 strains of enteropathogenic E. coli (EPEC) serogroup O86. The most frequent serotype found was O86:H34 (86%). Strains of this serotype and the non motile ones behaved as EPEC i.e., carried eae, bfpA and EAF DNA sequences and presented localised adherence to HeLa cells. Serotypes O86:H2, O86:H6, O86:H10, O86:H18, O86:H27 and O86:H non determined, belonged to other categories. The majority of the strains of serotype O86:H34 and non motile strains produced cytolethal-distending toxin (CDT). The ribotyping analysis showed a correlation among ribotypes, virulence markers and serotypes, thus suggesting that CDT production might be a property associated with a universal clone represented by the O86:H34 serotype.
Palavra-chave enteropathogenic Escherichia coli
serogroup O86
cytolethal distending toxin
virulence markers
diarrhoea
Idioma Inglês
Data de publicação 2001-07-01
Publicado em Memórias do Instituto Oswaldo Cruz. Instituto Oswaldo Cruz, Ministério da Saúde, v. 96, n. 5, p. 703-708, 2001.
ISSN 0074-0276 (Sherpa/Romeo)
Publicador Instituto Oswaldo Cruz, Ministério da Saúde
Extensão 703-708
Fonte http://dx.doi.org/10.1590/S0074-02762001000500022
Direito de acesso Acesso aberto Open Access
Tipo Artigo
SciELO S0074-02762001000500022 (estatísticas na SciELO)
Endereço permanente http://repositorio.unifesp.br/handle/11600/1198

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