Adhesion, invasion, intracellular survival and cytotoxic activity of strains of Aeromonas spp. in HEp-2, Caco-2 and T-84 cell lines
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ID: 260774
2015
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Abstract
The genus Aeromonas contains important pathogen for both humans and other animals, being responsible for the etiology of intestinal and extraintestinal diseases. The pathology caused by these bacteria involves several virulence factors, such as the ability to produce toxins, adhesion and invasion. The properties conferred by these factors have been extensively studied in experiments of interaction between bacterial strains and cell culture. We evaluate the interaction of eight Aeromonas spp. strains, previously isolated from human faeces, food and water with HEp-2, Caco-2 and T-84 cell lines. Cytotoxic effects, the pattern of adhesion, invasive capacity and intracellular survival were analyzed. The results showed that Aeromonas strains were adherent to three cells lines in 6 h of incubation, displaying the aggregative adherence pattern. Among eight strains studied, 50 % produced cytotoxic effects on HEp-2 cells, while none of the strains produced cytotoxic effects on Caco-2 and T-84 cells at 48 h. This study demonstrated that subsets of Aeromonas isolated from different sources were able to invade intestinal (T-84, Caco-2) and epithelial (HEp-2) cell lines cultivated in vitro surviving in intracellular environments up to 72 h. Finally, our results support the pathogenic potential of Aeromonas, especially those of food and clinical sources.
| Reference Key |
santos2015antonieadhesion,
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| Authors | Paula Azevedo dos Santos;Ana Claudia Machado Pereira;Andréa Fonseca Ferreira;Maria Angélica de Mattos Alves;Ana Cláudia Paula Rosa;Angela Corrêa Freitas-Almeida;Paula Azevedo dos Santos;Ana Claudia Machado Pereira;Andréa Fonseca Ferreira;Maria Angélica de Mattos Alves;Ana Cláudia Paula Rosa;Angela Corrêa Freitas-Almeida; |
| Journal | antonie van leeuwenhoek |
| Year | 2015 |
| DOI |
doi:10.1007/s10482-015-0416-4
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| URL | |
| Keywords |
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