Comparison of Host Response Mechanisms Evoked by Extended Spectrum Beta Lactamase (ESBL)--and Non-ESBL-producing Uropathogenic E. Coli
Overview
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Background: Infections caused by extended spectrum beta-lactamases (ESBL)-producing bacteria have been emerging worldwide and the majority of ESBL-producing E. coli strains are isolated from patients with urinary tracts infections. The purpose of this study was to compare the host-response mechanisms in human polymorphonucleated leukocytes (PMN) and renal epithelial cells when stimulated by ESBL- or non-ESBL-producing uropathogenic E. coli (UPEC) isolates. The host-pathogen interaction of these ESBL-producing strains in the urinary tract is not well studied.
Results: The ability of ESBL strains to evoke ROS-production from PMN cells was significantly higher than that of the non-ESBL strains. The growth of ESBL strains was slightly suppressed in the presence of PMN compared to non-ESBL strains after 30 min and 2h, but the opposite was observed after 5 and 6h. The number of migrating PMN was significantly higher in response to ESBL strains compared to non-ESBL strains. Stimulation of A498 cells with ESBL strains elicited lower production of IL-6 and IL-8 compared to non-ESBL strains.
Conclusion: Significant differences in host-response mechanisms were identified when host cells were stimulated by ESBL- or non-ESBL producing strains. The obtained results on the early interactions of ESBL-producing strains with the host immune system may provide valuable information for management of these infections.
Risk of sharing resistant bacteria and/or resistance elements between dogs and their owners.
Naziri Z, Poormaleknia M, Ghaedi Oliyaei A BMC Vet Res. 2022; 18(1):203.
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Demirel I, Persson A, Brauner A, Sarndahl E, Kruse R, Persson K Sci Rep. 2020; 10(1):21837.
PMID: 33318544 PMC: 7736892. DOI: 10.1038/s41598-020-78651-1.
Naziri Z, Derakhshandeh A, Soltani Borchaloee A, Poormaleknia M, Azimzadeh N Infect Drug Resist. 2020; 13:1839-1850.
PMID: 32606833 PMC: 7306463. DOI: 10.2147/IDR.S256131.
Moshkovskaya M, Vakhrusheva T, Rakitina D, Baykova J, Panasenko O, Basyreva L FEBS Open Bio. 2020; 10(3):414-426.
PMID: 31961067 PMC: 7050253. DOI: 10.1002/2211-5463.12796.
Demirel I, Persson A, Brauner A, Sarndahl E, Kruse R, Persson K Front Cell Infect Microbiol. 2018; 8:81.
PMID: 29662840 PMC: 5890162. DOI: 10.3389/fcimb.2018.00081.