Study of p53 codon 72 polymorphism in patients with breast cancer

Study of p53 codon 72 polymorphism in patients with breast cancer

Author Vieira, J. O. Google Scholar
Silva, Ismael Dale Cotrim Guerreiro da Autor UNIFESP Google Scholar
Higo, P. E. S. Google Scholar
Nogueira-de-Souza, Naiara Corrêa Autor UNIFESP Google Scholar
Gebrim, Luiz Henrique Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract Breast cancer is a common disease in Western societies, with an incidence of 46.3 1/100,000 women/year in Brazil. The tumor suppressor gene TP53 is one of the most studied genes regarding the presence of mutations. Indeed, 50% of all tumors are known to exhibit changes in the TP53 nucleotide sequence due to carcinogenic processes. As to the presence of polymorphism, the TP53 gene is polymorphic at the nucleotide residue 347 (codon 72).In the current study, we examine if this polymorphism is associated with the clinicopathological parameters of breast cancer patients in a Brazilian population. One hundred and thirteen patients with breast cancer were included. The polymorphic region of the TP53 gene was PCR-amplified from genomic DNA obtained from buccal cells. Specific primers for the Pro and Arg allele were used.Correlations of polymorphism with age, staging, nuclear grade, lymph node status, estrogen receptor status and lymphatic and/or blood vessel invasion were evaluated. Statistical analysis was performed using the Fisher's exact test The frequency of p53 Arg/Arg was 57% and of the heterozygous allele Arg/Pro it was 39%.There was no correlation between polymorphism and clinicopathological parameters. According to our results, the TP53 polymorphism, at the 347 residue, is not associated with any clinicopathological findings of patients with breast cancer.
Keywords p53 polymorphism
breast cancer
prognosis
Language English
Date 2008-01-01
Published in European Journal Of Gynaecological Oncology. Montreal: I R O G Canada, Inc, v. 29, n. 4, p. 364-367, 2008.
ISSN 0392-2936 (Sherpa/Romeo, impact factor)
Publisher I R O G Canada, Inc
Extent 364-367
Origin http://www.irog.net/download/?magazine=80
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000257220000011
URI http://repositorio.unifesp.br/11600/43597

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