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Time-Lapse Epifluorescence Microscopy Imaging of Pseudomonas aeruginosa and Staphylococcus aureus Heterogeneous Phenotypes
07:44

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Published on: February 14, 2025

Uropathogenic bacteria leave a mark.

Wolfgang A Schulz

    Laboratory Investigation; a Journal of Technical Methods and Pathology
    |May 28, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Urinary tract infections (UTIs) caused by E. coli may involve bacteria hiding inside urothelial cells. Bacterial infection triggers epigenetic changes, like DNA methylation, in urothelial carcinoma cells.

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    Establishment and Characterization of UTI and CAUTI in a Mouse Model
    08:40

    Establishment and Characterization of UTI and CAUTI in a Mouse Model

    Published on: June 23, 2015

    Area of Science:

    • Urology
    • Microbiology
    • Epigenetics

    Background:

    • Urinary tract infections (UTIs) are prevalent and can be severe, often caused by uropathogenic Escherichia coli.
    • Recurrent UTIs may stem from intracellular bacterial reservoirs within the urothelial epithelium.
    • Understanding host-pathogen interactions is crucial for UTI prevention and control.

    Discussion:

    • Uropathogenic bacterial infection induces changes in gene expression in urothelial carcinoma cells.
    • These changes correlate with the activation of DNA methyltransferase 1 (DNMT1).
    • Increased methylation at the CDKN2A gene locus is observed following infection.

    Key Insights:

    • Bacterial infections can lead to epigenetic modifications in host cells.
    • Activation of DNMT1 and subsequent CDKN2A methylation are key events.
    • This suggests a role for epigenetic alterations in the pathogenesis of UTIs.

    Outlook:

    • Findings highlight the need for advanced in vitro models to study urothelial infections.
    • Further research should investigate broader epigenetic alterations induced by bacterial infections in the urinary tract.
    • This could pave the way for novel therapeutic strategies targeting epigenetic dysregulation in UTIs.