1. Biomarkers and intermediate-high risk non-muscle invasive bladder cancer: a multivariate analysis of three different cellular pathways with pronostic implications
- Author
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H, Garde-García, E, Redondo-González, M, Maestro-de Las Casas, C, Fernández-Pérez, and J, Moreno-Sierra
- Subjects
Genetic Markers ,Male ,Analysis of Variance ,Time Factors ,Dipeptides ,Genes, p53 ,Prognosis ,Genes, ras ,Sex Factors ,Urinary Bladder Neoplasms ,Biomarkers, Tumor ,Disease Progression ,Humans ,Point Mutation ,Female ,Microsatellite Instability ,Prospective Studies ,Neoplasm Recurrence, Local ,Codon ,Aged ,Microsatellite Repeats - Abstract
To determine the presence of a group of mutations, and establish the prognostic value for recurrence and progression.Prospective observational study. Intermediate-to-high-risk non-muscle invasive bladder cancer (NMIBC) was evaluated. Data from genetic analyses were included in a database along with clinicopathological variables of interest.Seventy-four patients. Twenty-five (33.8%) recurred and 3 (4.1%) progressed. Median time to recurrence: 8 months (5.7-12.7). Median time to progression: 14 months (P75: 12). Mutation distribution: KRAS codon 12: one patient (1.4%), BAT25: five patients (6.8%), BAT-26: four patients (5.4%), and D2S123: 6 patients (8.1%). Arg72Pro polymorphism: 50 patients (67.6%) exhibited homozygous mutations, 23 (31.1%) were heterozygous, and 1 patient (1.4%) did not present the mutation. We found an association between presence of MSI at BAT26 and female sex (p 0.05) and tumor stage and the TP53 Arg72Pro polymorphism. Recurrence-free survival (RFS) was significantly associated with presence of MSI at D2S123, with a HR of 5.44 for patients presenting the mutation (95% CI 1.83-16.16). On multivariate analysis, we found a statistically significant increase in risk of recurrence among patients with MSI at D2S123 (HR 5.15; p 0.05) and more than 2 previous transurethral bladder resections (TURBs) (HR 5.07; p 0.05) adjusted for tumor stage and grade. Harrell's concordance index revealed an accuracy of 0.74 (p 0.05).An association was found between presence BAT26 MSI and female sex, Arg72Pro polymorphism with tumor stage and D2S123 and more than 2 TUR procedures were associated with RFS adjusted to tumor stage and grade.
- Published
- 2020