Joel Del Bel Pádua, Carolline Fontes Alves Mariano, Alexandre Todorovic Fabro, Fermino Sanches Lizarte Neto, Rogério Lenotti Zuliani, Cláudia Tarcila Gomes Sares, José Sebastião Dos Santos, Ajith Kumar Sankarankutty, Daniela Pretti da Cunha Tirapelli, Vanessa da Silva Silveira, Greice Andreotti de Molfetta, Wilson Araújo da Silva Júnior, Mariângela Ottoboni Brunaldi
BACKGROUND: Immunohistochemical prognostic significance of the homologous recombination-related proteins RAD51, ATM, BRCA1, and BRCA2 is known in gastric adenocarcinoma, one of the deadliest cancers. OBJECTIVE AND DESIGN: This retrospective cohort study aimed to evaluate mRNA expression and promoter methylation of some homologous recombination-related genes in this neoplasm. METHODS: We evaluated mRNA expression and methylation of RAD51 , ATM , ATR , BRCA1 , and BRCA2 in tumor and non-tumor frozen samples from gastrectomy specimens by RT-qPCR and MS-HRM, correlating our results with previous immunohistochemistry data and prognostic features...
2024: Biomarker Insights