Urinary shedding of common DNA viruses and their possible association with bladder cancer: a qPCR-based study.
Neoplasma
; 70(2): 311-318, 2023 Apr.
Article
in En
| MEDLINE
| ID: mdl-37226931
ABSTRACT
After a decade of human urinary microbiota research, little is known about the composition of the urinary virome and its association with health and disease. This study aimed to investigate the presence of 10 common DNA viruses in human urine and their putative association with bladder cancer (BC). Catheterized urine samples were collected from patients undergoing endoscopic urological procedures under anesthesia. After DNA extraction from the samples, viral DNA sequences were detected using real-time PCR. Viruria rates were compared between BC patients and controls. A total of 106 patients (89 males and 17 females) were included in the study. Fifty-seven (53.8%) were BC patients and 49 (46.2%) had upper urinary tract stones or bladder outlet obstruction. The viruses detected in the urine were human cytomegalovirus (2.0%), Epstein-Barr virus (6.0%), human herpesvirus-6 (12.5%), human papillomavirus (15.2%), BK polyomavirus (15.5%), torque teno virus (44.2%), and JC polyomavirus (47.6%), while no adenoviruses, herpes simplex virus 1 and 2, or parvoviruses were found. There were statistically significant differences in HPV viruria rates between cancer patients and controls (24.5% vs. 4.3%, p=0.032 after adjustment for age and gender). Viruria rates increased from benign to non-muscle-invasive and muscle-invasive tumors. Patients with a history of BC have higher HPV viruria rates than controls. Whether this relationship is a causal one remains to be established by further research.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Urinary Bladder Neoplasms
/
Epstein-Barr Virus Infections
/
Papillomavirus Infections
Type of study:
Risk_factors_studies
Limits:
Female
/
Humans
/
Male
Language:
En
Journal:
Neoplasma
Year:
2023
Type:
Article
Affiliation country:
Czech Republic