Urinary extracellular vesicles-encapsulated miRNA signatures: A new paradigm for urinary bladder cancer diagnosis and classification

•Urinary biomarkers for effective bladder cancer detection and monitoring.•Urinary extracellular vesicles hold potential in bladder cancer detection.•MicroRNA research enhances noninvasive diagnostic tools.•Challenges and advancements in urinary bladder cancer biomarker research. Bladder cancer (BCa...

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Published in:Urologic oncology 2024-07, Vol.42 (7), p.179-190
Main Authors: Kural, Sukhad, Jain, Garima, Agarwal, Sakshi, Das, Parimal, Kumar, Lalit
Format: Article
Language:English
Subjects:
Biomarker
Biomarkers, Tumor - genetics
Biomarkers, Tumor - urine
Bladder Cancer
Diagnosis
Extracellular vesicles
Extracellular Vesicles - genetics
Extracellular Vesicles - metabolism
Humans
microRNA
MicroRNAs - urine
Urinary Bladder Neoplasms - diagnosis
Urinary Bladder Neoplasms - genetics
Urinary Bladder Neoplasms - urine
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Summary:•Urinary biomarkers for effective bladder cancer detection and monitoring.•Urinary extracellular vesicles hold potential in bladder cancer detection.•MicroRNA research enhances noninvasive diagnostic tools.•Challenges and advancements in urinary bladder cancer biomarker research. Bladder cancer (BCa) stands as prevalent malignancy of the urinary system globally, especially among men. The clinical classification of BCa into non-muscle invasive bladder cancer (NMIBC) and muscle-invasive bladder cancer (MIBC) is crucial for prognosis and treatment decisions. However, challenges persist in current diagnostic methods like Urine cytopathology that shows poor sensitivity therefore compromising on accurately diagnosing and monitoring BCa. In recent years, research has emphasized the importance of identifying urine and blood-based specific biomarkers for BCa that can enable early and precise diagnosis, effective tumor classification, and monitoring. The convenient proximity of urine with the urinary bladder epithelium makes urine a good source of noninvasive biomarkers, in particular urinary EVs because of the packaged existence of tumor-associated molecules. Therefore, the review assesses the potential of urinary extracellular vesicles (uEVs) as noninvasive biomarkers for BCa. We have elaborately reviewed and discussed the research that delves into the role of urinary EVs in the context of BCa diagnosis and classification. Extensive research has been dedicated to investigating differential microRNA (miRNA) expressions, with the goal of establishing distinct, noninvasive biomarkers for BCa. The identification of such biomarkers has the potential to revolutionize early detection, risk stratification, therapeutic interventions, and ultimately, the long-term prognosis of BCa patients. Despite notable advancements, inconsistencies persist in the biomarkers identified, methodologies employed, and study populations. This review meticulously compiles reported miRNA biomarkers, critically assessing the variability and discrepancies observed in existing research. By synthesizing these findings, the article aims to direct future studies toward a more cohesive and dependable approach in BCa biomarker identification, fostering progress in patient care and management.
ISSN:1078-1439
1873-2496
DOI:10.1016/j.urolonc.2024.03.006