Features of uropathogenic Escherichia coli able to invade a prostate cell line

Catia Longhi1, Antonella Comanducci1, Anna Riccioli2

  • 1Department of Public Health and Infectious Diseases, Microbiology Section, "Sapienza" University of Rome, Italy.

Insights

This study shows that uropathogenic Escherichia coli (UPEC) strains causing urinary tract infections and prostatitis can adhere to and invade normal prostate cells. Invasive UPEC strains demonstrated strong biofilm production, suggesting a link to disease severity.

Area of Science:

  • Urology
  • Microbiology
  • Cell Biology

Background:

  • Uropathogenic Escherichia coli (UPEC) is a primary cause of urinary tract infections (UTIs) and bacterial prostatitis.
  • Understanding the interaction between UPEC and host cells is crucial for developing effective treatments.

Purpose of the Study:

  • To evaluate RWPE-1 normal prostate cells as an experimental model for studying UPEC adhesion and invasion.
  • To investigate the relationship between UPEC's adhesive ability, biofilm production, and invasive phenotype.

Main Methods:

  • Genotypically and phenotypically characterized UPEC strains were used.
  • Adhesion and invasion assays were performed using the RWPE-1 cell line.
  • Biofilm production was assessed for different UPEC strains.

Main Results:

  • A significant association was found between adhesive ability, strong biofilm production, and the invasive phenotype of UPEC.
  • Invasive UPEC strains were predominantly isolated from male and pediatric patients.
  • The RWPE-1 cell model demonstrated utility in analyzing bacterial-host cell interactions.

Conclusions:

  • RWPE-1 normal prostate cells serve as a viable experimental model for urovirulence analysis.
  • UPEC's ability to adhere, form biofilms, and invade is interconnected and may relate to patient demographics.
  • This model can enhance our understanding of UPEC pathogenesis in prostatitis and UTIs.

Related Concept Videos

Urinary Tract Infection II: Pathophysiology01:25

Urinary Tract Infection II: Pathophysiology

The pathophysiology of urinary tract infections (UTIs) encompasses several progressive stages, beginning with bacterial colonization and culminating in potential systemic complications if untreated. UTIs are primarily initiated by bacteria, such as Escherichia coli, which often originate from the gastrointestinal tract and migrate to the urinary system through the periurethral area. This migration can occur via several routes, including improper hygiene practices, sexual activity, or...
Microbiota of the Urogenital Tract01:28

Microbiota of the Urogenital Tract

The human urogenital system, once thought to be sterile in healthy individuals, is now recognized as a complex microbial habitat. Advancements in molecular sequencing techniques have revealed that even in healthy adults, the kidneys and bladder harbor microbial populations similar to those found in the distal urethra, albeit in much lower abundance. These resident microorganisms, while generally innocuous, can become opportunistic pathogens under conditions that alter the urogenital...
Bacterial Gastroenteritis01:18

Bacterial Gastroenteritis

Bacterial gastroenteritis, characterized by diarrhea, abdominal cramps, and vomiting, is often caused by ingestion of contaminated food or water and is frequently associated with pathogenic Escherichia coli strains. These microbes exploit two principal mechanisms to inflict disease.Shiga toxin–producing E. coli, also referred to as STEC—notably O157:H7—release Shiga toxins that target ribosomes, blocking protein synthesis. The B subunit of the toxin binds the host glycolipid receptor...