Proteus mirabilis from community-acquired urinary tract infections (UTI-CA) shares genetic similarity and virulence factors with isolates from chicken, beef and pork meat
| Autor: | Sérgio Paulo Dejato da Rocha, Victor Hugo Montini, Mario Gabriel Lopes Barboza, Eliana Carolina Vespero, Erick Kenji Nishio, Luana Carvalho Silva, Ligia Carla Faccin Galhardi, Mara Corrêa Lelles Nogueira, Gustavo Henrique Migliorini Guidone, Bruno Henrique Dias de Oliva, Caroline Rodrigues da Silva, Matheus Silva Sanches |
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| Rok vydání: | 2021 |
| Předmět: |
Meat
Swine Virulence Factors Fimbria Virulence Biology Microbiology Genotype Chlorocebus aethiops Animals Humans Pathogen Proteus mirabilis Vero Cells Biofilm food and beverages Hemolysin biology.organism_classification Red Meat Infectious Diseases Urinary Tract Infections Pork Meat Cattle Chickens Bacteria |
| Zdroj: | Microbial pathogenesis. 158 |
| ISSN: | 1096-1208 |
| Popis: | Proteus mirabilis is an opportunistic pathogen associated with a variety of infections in humans, especially those in the urinary tract. The isolation of this pathogen in foods of animal origin such as meat is poorly documented and should not be neglected, in view of the zoonotic risk that this can pose to human health. Thus, the objective of this study was to evaluate the prevalence, virulence profile, and similarity between P. mirabilis strains isolated from chicken, beef, and pork meat and those causing community-acquired urinary tract infections (UTI-CA), in order to better understand the role of this bacterium as a zoonotic pathogen. P. mirabilis was isolated from the three types of meat and was found to be more prevalent in chicken. All isolates exhibited several genotypic and phenotypic virulence characteristics, such as adhesion capacity in HEp-2 cell culture, biofilm formation, cytotoxicity in Vero cells and genes that express fimbriae (mrpA, pmfA, ucaA, atfA), hemolysin (hpmA), proteases (zapA and ptA) and siderophore receptor (ireA). UTI-CA strains showed a higher prevalence of ucaA and ireA genes, whereas those from the chicken meat had a higher prevalence of the atfA gene compared with the isolates from the beef and pork meat. It was observed that chicken meat and UTI-CA strains mainly formed very strong biofilms, whereas strains isolated from beef and pork formed more weak and moderate biofilms. Several strains from meat showed close genetic similarity to those from UTI-CA and had the same virulence profiles. Thus, meats may be an important source of the dissemination of P. mirabilis responsible for causing UTIs in the community. |
| Databáze: | OpenAIRE |
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