Estudio del genotipo de BRCA y relación entre la localización de la mutación y la duración de la respuesta a inhibidores de PARP en cáncer de ovario avanzado
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2025-09-17
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Jaén: Universidad de Jaén
Resumen
El cáncer de ovario es la octava causa de muerte a nivel mundial, gracias a los avances médicos de los últimos años, ha mejorado la supervivencia de las pacientes. Los inhibidores de PARP se han utilizado como monoterapia y en combinación con quimioterapia basada en platino mostrando gran eficiencia en cáncer de ovario avanzado, especialmente en pacientes con mutaciones en BRCA. No obstante, la eficiencia de este tratamiento es variable. El presente trabajo analiza si la localización de la mutación en BRCA según su dominio funcional, tiene un impacto en la respuesta a los inhibidores de PARP en combinación con quimioterapia basado en platino, en pacientes con cáncer de ovario avanzado. Considerando las limitaciones de nuestro estudio, no se encuentran diferencias significativas que demuestren una correlación entra la localización de las mutaciones en los genes BRACA1 y BRCA2 con la eficacia y/o supervivencia al tratamiento con inhibidores de PARP, en concreto al fármaco olaparib. Nuestros datos apuntan un posible papel relevante para las mutaciones localizadas en el dominio RING de BRCA1, si bien se requiere continuar y ampliar este estudio para validar el papel pronóstico de dichas mutaciones en el manejo oncológico de las pacientes.
Ovarian cancer is the eighth leading cause of death worldwide, thanks to medical advances in recent years, patient survival has improved. PARP inhibitors have been used as monotherapy and in combination with platinum-based chemotherapy, showing great efficiency in advanced ovarian cancer, especially in patients with BRCA mutations. However, the efficiency of this treatment is variable. The present work analyzes whether the location of the BRCA mutation according to its functional domain has an impact on the response to PARP inhibitors in combination with platinum-based chemotherapy in patients with advanced ovarian cancer. Considering the limitations of our study, we did not find statistically significant differences that demonstrate a correlation between the location of mutations in BRCA 1 and BRCA 2, with the efficacy and survival of treatments based on PARP inhibitors. Our data suggest a potential relevant impact for mutations in RING domain of BRCA1, however it is required to add more data in order to validate the prognostic value of those mutations in cancer therapies based on iPARP.
Ovarian cancer is the eighth leading cause of death worldwide, thanks to medical advances in recent years, patient survival has improved. PARP inhibitors have been used as monotherapy and in combination with platinum-based chemotherapy, showing great efficiency in advanced ovarian cancer, especially in patients with BRCA mutations. However, the efficiency of this treatment is variable. The present work analyzes whether the location of the BRCA mutation according to its functional domain has an impact on the response to PARP inhibitors in combination with platinum-based chemotherapy in patients with advanced ovarian cancer. Considering the limitations of our study, we did not find statistically significant differences that demonstrate a correlation between the location of mutations in BRCA 1 and BRCA 2, with the efficacy and survival of treatments based on PARP inhibitors. Our data suggest a potential relevant impact for mutations in RING domain of BRCA1, however it is required to add more data in order to validate the prognostic value of those mutations in cancer therapies based on iPARP.
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Oncología, Genética Humana, Human Genetics