Find in Library
Search millions of books, articles, and more
Indexed Open Access Databases
The Antibacterial Activity of Human Amniotic Membrane against Multidrug-Resistant Bacteria Associated with Urinary Tract Infections: New Insights from Normal and Cancerous Urothelial Models
oleh: Taja Železnik Ramuta, Larisa Tratnjek, Aleksandar Janev, Katja Seme, Marjanca Starčič Erjavec, Mateja Erdani Kreft
Format: | Article |
---|---|
Diterbitkan: | MDPI AG 2021-02-01 |
Deskripsi
Urinary tract infections (UTIs) represent a serious global health issue, especially due to emerging multidrug-resistant UTI-causing bacteria. Recently, we showed that the human amniotic membrane (hAM) could be a candidate for treatments and prevention of UPEC and <i>Staphylococcus aureus</i> infections. However, its role against multidrug-resistant bacteria, namely methicillin-resistant <i>S. aureus</i> (MRSA), extended-spectrum beta-lactamases (ESBL) producing <i>Escherichia coli</i> and <i>Klebsiella pneumoniae</i>, vancomycin-resistant <i>Enterococci</i> (VRE), carbapenem-resistant <i>Acinetobacter baumannii</i>, and <i>Pseudomonas aeruginosa</i> has not yet been thoroughly explored. Here, we demonstrate for the first time that the hAM homogenate had antibacterial activity against 7 out of 11 tested multidrug-resistant strains, the greatest effect was on MRSA. Using novel approaches, its activity against MRSA was further evaluated in a complex microenvironment of normal and cancerous urinary bladder urothelia. Even short-term incubation in hAM homogenate significantly decreased the number of bacteria in MRSA-infected urothelial models, while it did not affect the viability, number, and ultrastructure of urothelial cells. The hAM patches had no antibacterial activity against any of the tested strains, which further exposes the importance of the hAM preparation. Our study substantially contributes to basic knowledge on the antibacterial activity of hAM and reveals its potential to be used as an antibacterial agent against multidrug-resistant bacteria.