A biomimetic porcine urothelial model for assessing Escherichia coli pathogenicity

Predojević, Luka (avtor), Keše, Darja (avtor), Žgur-Bertok, Darja (avtor), Železnik Ramuta, Taja (avtor), Veranič, Peter (avtor), Erdani-Kreft, Mateja (avtor), Starčič Erjavec, Marjanca (avtor)

Urinary tract infections can be severe, sometimes fatal, diseases whose etiological pathogens are predominantly uropathogenic strains of E. coli (UPEC). To investigate the UPEC pathogenesis, several models have already been established with minor or major disadvantages. The aim was to develop a simple, fast, and inexpensive biomimetic in vitro model based on normal porcine urothelial (NPU) cells that are genetically and physiologically similar to human bladder urothelium and to perform basic studies of E. coli pathogenicity. Initially, the model was tested using a set of control E. coli strains and, subsequently, with human E. coli strains isolated either from patients with urinary infections or from the feces of healthy individuals. A drop in viability of NPU cells was used as a measure of the pathogenicity of the individual strain tested. To visualize the subcellular events, transmission and scanning electron microscopy was performed. The strains were tested for the presence of different virulence-associated genes, phylogroup, type of core lipid, O-serotype, and type of lipopolysaccharide and a statistical analysis of possible correlations between strains’ characteristics and the effect on the model was performed. Results showed that our model has the discriminatory power to distinguish pathogenic from non-pathogenic E. coli strains, and to identify new, potentially pathogenic strains.

• Jezik: Angleški jezik
• Ključne besede: urothelium, virulence-associated genes, infection, electron microscopy, E. coli, UPEC, correlations, pathogenicity groups, primary culture, infection assay
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta ; MF - Medicinska fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2022
• Št. strani: 16 str.
• Številčenje: Vol. 10, iss. 4, art. 783
• PID: 20.500.12556/RUL-137443
• UDK: 579
• ISSN pri članku: 2076-2607
• DOI: 10.3390/microorganisms10040783
• COBISS.SI-ID: 104312323
• Datum objave v RUL: 17.06.2022

Gradivo je del revije

• Naslov: Microorganisms
• Skrajšan naslov: Microorganisms
• Založnik: MDPI AG
• ISSN: 2076-2607
• COBISS.SI-ID: 523277081

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 07.04.2022

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: prašičji urotelij, Escherichia coli, patogenost