Proteomics

Dataset Information

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Proteomic Profiling Of Bladder Cancer Patients-Derived Extracellular Vesicles


ABSTRACT: Extracellular vesicle (EV) proteomics holds great promise for non-invasive cancer biomarker discovery. This study presents the first comprehensive proteomic characterization of EVs from tissue, plasma, and urine, focusing on bladder cancer BlCa. EVs were isolated via ultracentrifugation, and their cargo was analyzed, comparing BlCa patients to controls and patients with clear cell renal cell carcinoma (ccRCC) and prostate cancer (PCa), to identify BlCa-specific markers. Urine proved to be a rich source of BlCa EVs, enabling tissue-to-urine molecular tracking and insights into BlCa communication. Differential proteomic analysis revealed distinct BlCa EV profiles compared to healthy donors (HDs), ccRCC, and PCa. Importantly, we identified several candidate biomarkers, including ADAM8 and MMP12, exclusively present in BlCa tissue (50% and 64%, respectively) and urine EVs (83% each). Furthermore, six BlCa urinary EV proteins – ACKR1 (66%) and DHCR7, ERMAP, PTGS2, UBXN4, and GYPC (50% each) – were absent in HDs, ccRCC, and PCa. This study identifies several BlCa-derived EV proteins with strong potential for the development of non-invasive EV-based diagnostics and monitoring strategies for BlCa, potentially contributing to advancing precision medicine approaches for this malignancy .

INSTRUMENT(S):

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Urine, Prostate Gland, Blood Plasma, Extracellular Vesicle, Bladder, Kidney

DISEASE(S): Urinary Bladder Cancer

SUBMITTER: Hugo Osorio  

LAB HEAD: Carmen Jerónimo

PROVIDER: PXD062618 | Pride | 2026-06-08

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
BlCa_Plasma11_T_CL15.raw Raw
BlCa_Plasma16_T_CL16.raw Raw
BlCa_Plasma17_T_CL17.raw Raw
BlCa_Plasma19_T_CL18.raw Raw
BlCa_Plasma1_T_CL13.raw Raw
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Publications

From cell lines to the clinic: identifying a urinary BlCa-EV signature through comparative proteomics of bladder cancer lysates and extracellular vesicles.

Lourenço Catarina C   Constâncio Vera V   Tavares Nuno Tiago NT   Monteiro-Reis Sara S   Silva-Santos Rui R   Lobo João J   Carvalho Ângela    Jerónimo Carmen C  

Cell communication and signaling : CCS 20260409 1


<h4>Background</h4>There is an urgent need for the development of innovative diagnostic and therapeutic strategies in bladder cancer (BlCa) management, due to its significant incidence, mortality, and morbidity. Extracellular vesicles (EVs) constitute promising candidates as biomarkers, as their cargo is highly protected from degradation, and they can be isolated non-invasively from urine. Furthermore, they play a pivotal role in intercellular communication that drives disease progression, makin  ...[more]

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