Genes and expression of virulence factors in Escherichia coli isolated from production animals.
The virulence factors of pathogens are expressed once they overcome the physiological mechanisms of immune response by the organism, Escherichia coli (E. coli) is a bacterium that is considered a public health problem worldwide due to the high prevalence of resistance and pathogenicity mechanisms ex...
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| Format: | Online |
| Language: | spa |
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Universidad Pedagógica y Tecnológica de Colombia
2022
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| Online Access: | https://revistas.uptc.edu.co/index.php/ciencia_agricultura/article/view/13795 |
| _version_ | 1801706482102697984 |
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| author | Sáenz Rojas , Sebastián Alejandro Torres Caycedo , Maris Inés López Velandia, Diana Paola |
| author_facet | Sáenz Rojas , Sebastián Alejandro Torres Caycedo , Maris Inés López Velandia, Diana Paola |
| author_sort | Sáenz Rojas , Sebastián Alejandro |
| collection | OJS |
| description | The virulence factors of pathogens are expressed once they overcome the physiological mechanisms of immune response by the organism, Escherichia coli (E. coli) is a bacterium that is considered a public health problem worldwide due to the high prevalence of resistance and pathogenicity mechanisms expressed, it is mainly related to intestinal infections and is transmitted in the food chain; the genetic determinants encoding virulence factors are transferred between different species or the same, through the mechanism of horizontal gene transfer. The present review aims to describe virulence factors and genes encoding them in E. coli strains isolated from production animals and food products. The databases Medline, Lilacs, ScienceDirect, Scopus, SciELO, and Dialnet were searched using a combination of validated keywords in English (gene, virulence, virulence factor, infection, horizontal gene transfer, mutation, and production animals). Different virulence mechanisms were identified in different production environments, which vary according to the animal and bacterial species. The genes with the highest circulation were Stx1, Stx2 coding for toxins, Saa for adhesins, ehxA for enterohemolysin, eaeA for intimin, and IpfA for fimbriae. Microbiological surveillance and control in the food and animal production area are of great importance to avoid possible disease outbreaks in susceptible populations, due to the effect of virulence factors. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-13795 |
| institution | Revista Ciencia y Agricultura |
| language | spa |
| publishDate | 2022 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-137952022-11-30T00:20:08Z Genes and expression of virulence factors in Escherichia coli isolated from production animals. Genes y expresión de factores de virulencia en Escherichia coli aislada en animales de producción Sáenz Rojas , Sebastián Alejandro Torres Caycedo , Maris Inés López Velandia, Diana Paola Escherichia coli Food Chain Genes Polymerase Chain Reaction Virulence Cadena Alimentaria Escherichia coli Genes Reacción En Cadena De La Polimerasa Virulencia The virulence factors of pathogens are expressed once they overcome the physiological mechanisms of immune response by the organism, Escherichia coli (E. coli) is a bacterium that is considered a public health problem worldwide due to the high prevalence of resistance and pathogenicity mechanisms expressed, it is mainly related to intestinal infections and is transmitted in the food chain; the genetic determinants encoding virulence factors are transferred between different species or the same, through the mechanism of horizontal gene transfer. The present review aims to describe virulence factors and genes encoding them in E. coli strains isolated from production animals and food products. The databases Medline, Lilacs, ScienceDirect, Scopus, SciELO, and Dialnet were searched using a combination of validated keywords in English (gene, virulence, virulence factor, infection, horizontal gene transfer, mutation, and production animals). Different virulence mechanisms were identified in different production environments, which vary according to the animal and bacterial species. The genes with the highest circulation were Stx1, Stx2 coding for toxins, Saa for adhesins, ehxA for enterohemolysin, eaeA for intimin, and IpfA for fimbriae. Microbiological surveillance and control in the food and animal production area are of great importance to avoid possible disease outbreaks in susceptible populations, due to the effect of virulence factors. Los factores de virulencia de patógenos se expresan una vez superan los mecanismos fisiológicos de respuesta inmune por parte del organismo, Escherichia coli (E. coli) es una bacteria que se considera un problema en salud pública en todo el mundo debido a la alta prevalencia de mecanismos de resistencia y patogenicidad que expresa, se relaciona principalmente con infecciones intestinales y es transmitida en la cadena alimenticia; los determinantes genéticos que codifican factores de virulencia se trasladan entre diferentes especies o la misma, mediante el mecanismo de transferencia horizontal de genes. El objetivo de la presente revisión es describir factores de virulencia y genes que los codifican en cepas de E. coli aisladas de animales de producción y de productos alimenticios. En las bases de datos Medline, Lilacs, ScienceDirect, Scopus, SciELO y Dialnet, se realizó búsqueda utilizando una combinación de palabras claves validadas en inglés (gen, virulence, virulence factor, infection, horizontal gene transfer, mutation and production animals). En diferentes ambientes de producción se identificó la presencia de diferentes mecanismos de virulencia que varían según la especie animal y bacteriana, los genes con mayor circulación con Stx1, Stx2 codificantes de toxinas, Saa de adhesinas, ehxA de enterohemolisina, eaeA de intimina, IpfA de fimbrias. La vigilancia y control microbiológico en el área alimenticia y de producción animal es de gran importancia para evitar posibles brotes de enfermedades en población susceptible, por efecto de los factores de virulencia. Universidad Pedagógica y Tecnológica de Colombia 2022-07-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Imagen application/pdf text/xml https://revistas.uptc.edu.co/index.php/ciencia_agricultura/article/view/13795 10.19053/01228420.v19.n2.2022.13795 Ciencia y Agricultura; Vol. 19 No. 2 (2022): Mayo-Agosto Ciencia y Agricultura; Vol. 19 Núm. 2 (2022): Mayo-Agosto 2539-0899 spa https://revistas.uptc.edu.co/index.php/ciencia_agricultura/article/view/13795/11915 https://revistas.uptc.edu.co/index.php/ciencia_agricultura/article/view/13795/12387 Copyright (c) 2022 Diana Paola López Velandia http://creativecommons.org/licenses/by/4.0 |
| spellingShingle | Escherichia coli Food Chain Genes Polymerase Chain Reaction Virulence Cadena Alimentaria Escherichia coli Genes Reacción En Cadena De La Polimerasa Virulencia Sáenz Rojas , Sebastián Alejandro Torres Caycedo , Maris Inés López Velandia, Diana Paola Genes and expression of virulence factors in Escherichia coli isolated from production animals. |
| title | Genes and expression of virulence factors in Escherichia coli isolated from production animals. |
| title_alt | Genes y expresión de factores de virulencia en Escherichia coli aislada en animales de producción |
| title_full | Genes and expression of virulence factors in Escherichia coli isolated from production animals. |
| title_fullStr | Genes and expression of virulence factors in Escherichia coli isolated from production animals. |
| title_full_unstemmed | Genes and expression of virulence factors in Escherichia coli isolated from production animals. |
| title_short | Genes and expression of virulence factors in Escherichia coli isolated from production animals. |
| title_sort | genes and expression of virulence factors in escherichia coli isolated from production animals |
| topic | Escherichia coli Food Chain Genes Polymerase Chain Reaction Virulence Cadena Alimentaria Escherichia coli Genes Reacción En Cadena De La Polimerasa Virulencia |
| topic_facet | Escherichia coli Food Chain Genes Polymerase Chain Reaction Virulence Cadena Alimentaria Escherichia coli Genes Reacción En Cadena De La Polimerasa Virulencia |
| url | https://revistas.uptc.edu.co/index.php/ciencia_agricultura/article/view/13795 |
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