Genomic Analysis of Multidrug-Resistant Escherichia coli Strains Isolated in Tamaulipas, Mexico

Autor: Jessica L. Ortega-Balleza, Abraham Guerrero, Graciela Castro-Escarpulli, Ana Verónica Martínez-Vázquez, María Antonia Cruz-Hernández, Erick de Jesús de Luna-Santillana, Erika Acosta-Cruz, Irám Pablo Rodríguez-Sánchez, Gildardo Rivera, Virgilio Bocanegra-García
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Tropical Medicine and Infectious Disease, Vol 8, Iss 10, p 458 (2023)
Druh dokumentu: article
ISSN: 2414-6366
DOI: 10.3390/tropicalmed8100458
Popis: The global spread of antimicrobial resistance genes (ARGs) is a major public health concern. Mobile genetic elements (MGEs) are the main drivers of this spread by horizontal gene transfer (HGT). Escherichia coli is widespread in various environments and serves as an indicator for monitoring antimicrobial resistance (AMR). Therefore, the objective of this work was to evaluate the whole genome of multidrug-resistant E. coli strains isolated from human clinical, animal, and environmental sources. Four E. coli strains previously isolated from human urine (n = 2), retail meat (n = 1), and water from the Rio Grande River (n = 1) collected in northern Tamaulipas, Mexico, were analyzed. E. coli strains were evaluated for antimicrobial susceptibility, followed by whole genome sequencing and bioinformatic analysis. Several ARGs were detected, including blaCTX-M-15, blaOXA-1, blaTEM-1B, blaCMY-2, qnrB, catB3, sul2, and sul3. Additionally, plasmid replicons (IncFIA, IncFIB, IncFII, IncY, IncR, and Col) and intact prophages were also found. Insertion sequences (ISs) were structurally linked with resistance and virulence genes. Finally, these findings indicate that E. coli strains have a large repertoire of resistance determinants, highlighting a high pathogenic potential and the need to monitor them.
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