Polymorphisms in apoptosis-related genes in cutaneous melanoma prognosis: sex disparity

Autor(es)

Oliveira, Cristiane ; Lourenco, Gustavo Jacob ; Rinck-Junior, Jose Augusto ; de Moraes, Aparecida Machado ; Passos Lima, Carmen Silvia

• Tipo de documento: Artigo Científico
• Fonte: MEDICAL ONCOLOGY; v. 34, n. 2 FEB 2017.
• Citações Web of Science: 0

Resumo

Cutaneous melanoma (CM) cells are resistant to apoptosis, and steroid hormones are involved in this process through regulation of TP53, MDM2, BAX, and BCL2 expression. We analyzed herein sex differences in outcomes of CM patients associated with TP53 c.215G>C, MDM2 c.309T>G, BAX c.-248G>A, and BCL2 c.-717C>A polymorphisms. DNA from 121 men and 116 women patients was analyzed by polymerase chain reaction and enzymatic digestion assays. At 60 months of follow-up, shorter progression-free survival (PFS) was seen in males with MDM2 GG + BCL2 AA (20.0 vs. 62.6%, P = 0.0008) genotype. Men carriers of the genotype had poor PFS (HR 3.78, 95% CI 1.30-11.0) than others. For women, shorter PFS was associated with TP53 GC or CC (61.4 vs. 80.8%, P = 0.01) and TP53 GC or CC + MDM2 TG or GG (59.1 vs. 85.4%, P = 0.01) genotypes at the same time. Women carriers of the genotypes had poor PFS (HR 2.46, 95% CI 1.19-5.09; HR 9.49, 95% CI 1.14-78.50) than others, respectively. Our data present, for the first time, preliminary evidence that inherited abnormalities on TP53, MDM2 and BCL2 genes, enrolled in apoptosis pathways, have a pivotal role in differences of outcomes in women and men with CM. (AU)

• Processo FAPESP: 10/18904-5 - Influência dos polimorfismos p53 arg72pro, Mdm2 t309g, Bcl2 c938a e Bax g248a, relacionados com apoptose celular, na susceptibilidade ao melanoma maligno
• Beneficiário: Carmen Silvia Passos Lima
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 09/12602-0 - Influência dos polimorfismos TP53 arg72pro, Mdm2 t309g, BCL2 C938A e BAX G248A, relacionados com apoptose celular,na susceptibilidade ao melanoma maligno
• Beneficiário: Cristiane de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Mestrado