• Biochem. Biophys. Res. Commun. · Oct 2005

    Clinical Trial Controlled Clinical Trial

    The influence of HER2 genotypes as molecular markers in ovarian cancer outcome.

    • Daniela Pinto, Deolinda Pereira, Catarina Portela, José Leal da Silva, Carlos Lopes, and Rui Medeiros.
    • Pathology and Molecular Oncology Unit, Portuguese Institute of Oncology, Porto, Portugal. patpriv@ipoporto.min-saude.pt
    • Biochem. Biophys. Res. Commun. 2005 Oct 7;335(4):1173-8.

    AbstractA relevant clinical problem in the treatment of ovarian cancer (OC) is the development of resistance to chemotherapy, frequently due to genetic variations in enzymes and receptors. Changes in the HER2 receptor have been associated with breast and ovarian cancers. The role of a polymorphism in the HER2 gene in the clinical outcome of OC patients was investigated in this study. We characterized DNA samples from 111 patients with OC treated with cisplatin and paclitaxel, using PCR-RFLP. Our results indicate that patients carrying the valine homozygotic genotype present a lower overall survival mean, suggesting a role for this polymorphism in the outcome of ovarian cancer patients. The G allele has been implicated in the formation of active HER2 receptors, with a more aggressive phenotype. We hypothesize that HER2 genotypes can be predictive biomarkers in ovarian cancer, contributing to a genetic individual profile of great interest in clinical oncology.

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