Fibroblast growth factor receptor 3 mutation in voided urine is a useful diagnostic marker and significant indicator of tumor recurrence in non-muscle invasive bladder cancer.
Cancer Sci
; 101(1): 250-8, 2010 Jan.
Article
em En
| MEDLINE
| ID: mdl-19843069
ABSTRACT
The fibroblast growth factor receptor (FGFR)-3 gene encodes a receptor tyrosine kinase that is frequently mutated in non-muscle invasive bladder cancer (NMIBC). A sensitive and quantitative assay using peptide nucleic acid-mediated real-time PCR was developed for detecting FGFR3 mutations in the urine samples and evaluated as a molecular marker for detecting intravesical recurrence of NMIBC in patients undergoing transurethral resection of bladder tumor. FGFR3 mutation was examined in tumor tissues and serially taken pre- and postoperative urine sediments in 45 NMIBC patients with a median follow up of 32 months. FGFR3 mutations were detected in 53.3% (24/45) of primary tumor tissues, among which intravesical recurrence developed in 37.5% (9/24) of cases. FGFR3 mutation in the primary tumor was not a significant prognostic indicator for recurrence, while the proportion of FGFR3 mutation (i.e. tumor cellularity was >or=11%) in the preoperative urine sediments was a significant indicator for recurrence in patients with FGFR3 mutations in the primary tumors. FGFR3 mutations were detected in 78% (7/9) of postoperative urine samples from recurrent cases with FGFR3 mutations in the tumor, while no mutations were detected in the urine of 15 non-recurrent cases. Urine cytology was negative in all cases with FGFR3 mutations in the primary tumors, while the sensitivity of cytological examination was as high as 56% (5/9) in cases showing wild-type FGFR3 in the primary tumors. Urine FGFR3 mutation assay and cytological examination may be available in the future as complementary diagnostic modalities in postoperative management of NMIBC.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Bexiga Urinária
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Receptor Tipo 3 de Fator de Crescimento de Fibroblastos
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Mutação
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Recidiva Local de Neoplasia
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Adult
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Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Cancer Sci
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Japão