alexa p53 polymorphisms and haplotypes in breast cancer


Journal of Cancer Science & Therapy

Author(s): ASjalander, RBirgander, GHallmans, SCajande, PLenner, LAthlin, GBeckman, LBeckman

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Three polymorphisms in the human tumor suppressor gene p53 (BstUl and Mspl RFLPs in exon 4 and intron 6 respectively and a 16 bp duplication in intron 3) and their haplotype combinations were studied in patients with breast cancer and controls. A significant increase in the codon 72 BstUl Al (pro) allele frequency (P = 0.016) and of individuals carrying the pro allele (pro/pro and pro/arg) (OR, 1.47; P = 0.014; 95% CI, 1.08-2.00) was observed in breast cancer. This increase was most pronounced in highly differentiated breast cancer. Significant associations were found only in BstUl and haplotypes containing this polymorphism, which indicates that the codon 72 pro allele may be functionally involved in low malignancy breast cancer. The distributions of genotypic combinations in breast cancer patients and controls were significantly different (P = 0.005). Two BsrtJI-16 bp-Mspl combinations were significantly overrepresented; 2-1,1-1, 2-2 (OR, 1.61; 95% CI, 1.13-2.30) and 1-1, 2-1, 2-1 (OR, 2.94; 95% CI, 1.37-6.27).

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This article was published in Carcinogenesis and referenced in Journal of Cancer Science & Therapy

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