Abstract
Despite the high prevalence of TP53 pathogenic variants (PV) carriers in the South and Southeast regions of Brazil, germline genetic testing for hereditary breast cancer (HBC) is not available in the Brazilian public health system, and the prevalence of Li-Fraumeni syndrome (LFS) is not well established in other regions of Brazil. We assessed the occurrence of TP53 p.R337H carriers among women treated for breast cancer (BC) between January 2021 and January 2022 at public hospitals of Brasilia, DF, Brazil. A total of 180 patients who met at least one of the NCCN criteria for HBC underwent germline testing; 44.4% performed out-of-pocket germline multigene panel testing, and 55.6% were tested for the p.R337H variant by allelic discrimination PCR. The median age at BC diagnosis was 43.5 years, 93% had invasive ductal carcinoma, 50% had estrogen receptor-positive/HER2 negative tumors, and 41% and 11% were diagnosed respectively at stage III and IV. Two patients (1.11%) harbored the p.R337H variant, and cascade family testing identified 20 additional carriers. The TP53 p.R337H detection rate was lower than that reported in other studies from south/southeast Brazil. Nonetheless, identifying TP53 PV carriers through genetic testing in the Brazilian public health system could guide cancer treatment and prevention.
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MDPI and ACS Style
Corrêa, T.S.; Asprino, P.F.; de Oliveira, E.S.C.; Leite, A.C.R.; Weis, L.; Achatz, M.I.; de Oliveira, C.P.; Sandoval, R.L.; Barroso-Sousa, R.
TP53 p.R337H Germline Variant among Women at Risk of Hereditary Breast Cancer in a Public Health System of Midwest Brazil. Genes 2024, 15, 928.
https://doi.org/10.3390/genes15070928
AMA Style
Corrêa TS, Asprino PF, de Oliveira ESC, Leite ACR, Weis L, Achatz MI, de Oliveira CP, Sandoval RL, Barroso-Sousa R.
TP53 p.R337H Germline Variant among Women at Risk of Hereditary Breast Cancer in a Public Health System of Midwest Brazil. Genes. 2024; 15(7):928.
https://doi.org/10.3390/genes15070928
Chicago/Turabian Style
Corrêa, Tatiana Strava, Paula Fontes Asprino, Eduarda Sabá Cordeiro de Oliveira, Ana Carolina Rathsam Leite, Luiza Weis, Maria Isabel Achatz, Claudiner Pereira de Oliveira, Renata Lazari Sandoval, and Romualdo Barroso-Sousa.
2024. "TP53 p.R337H Germline Variant among Women at Risk of Hereditary Breast Cancer in a Public Health System of Midwest Brazil" Genes 15, no. 7: 928.
https://doi.org/10.3390/genes15070928
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