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Updated: Aug 17, 2026

An Orthotopic Bladder Cancer Model for Gene Delivery Studies
Published on: December 1, 2013
[Restriction polymorphism of C-HA-ras-1 locus in bladder tumors]
F Descotes1, H Bittard, M Bittard
1Service de biochimie biologie moléculaire, CHU Besançon, France.
Abstract:
The c-Ha-ras-1 polymorphism was studied in 92 bladder tumor samples (newly diagnosed and/or recurrent) obtained from 73 patients and in the paired white blood cells (WBC). A heterozygous state was detected in WBC DNA of 38 patients (52%). The statistical analysis (univariate and multivariate) demonstrated an association between the heterozygous state of the patients and a lymphatic invasion. In patients with a pTa tumor, there was a relation between the heterozygous state and a younger age at diagnosis. A loss of heterozygosity for c-Ha-ras-1 locus was detected in seven out of the 38 informative tumors (18.4%). No significant correlation was observed with the prognostic factors. These results address the relation between the heterozygous genomic state and the risk of lymphatic invasion in the patients with a bladder tumor.
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