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Pancreatic carcinoma is the fourth leading cause of cancer-related deaths in the Czech Republic, with only a minimum of patients surviving 5 years. The aetiology and molecular pathogenesis are still weakly understood.TP53has a fundamental role in cell cycle and apoptosis and is frequently mutated in solid tumours, including pancreatic cancer. Based on the assumption that genetic variation may affect susceptibility to cancer development, the role ofTP53polymorphisms in modulating the risk of pancreatic cancer may be of major importance. We investigated four selected polymorphisms inTP53(rs17878362:A1&gt;A2, rs1042522:G&gt;C, rs12947788:C&gt;T and rs17884306:G&gt;A) in association with pancreatic cancer risk in a case–control study, including 240 cases and controls (for a total of 1827 individuals) from the Czech Republic. Carriers of the variant C allele of rs1042522 polymorphism were at an increased risk of pancreatic cancer [odds ratio (OR) 1.73; 95% confidence interval (CI) 1.26–2.39;P= 0.001]. Haplotype analysis showed that in comparison with the most common haplotype (A1GCG), the A2CCG haplotype was associated with an increased risk (OR 1.39; 95% CI 1.02–1.88;P= 0.034) and the A1CCG with a reduced risk (OR 0.30; 95% CI 0.12–0.76;P= 0.011) for this cancer. These results reflect previous findings of a recent association study, where haplotypes constructed on the sameTP53variants were associated with colorectal cancer risk [Polakovaet al.(2009) Genotype and haplotype analysis of cell cycle genes in sporadic colorectal cancer in the Czech Republic.Hum. Mutat., 30, 661–668.]. Genetic variation inTP53may contribute, alone or in concert with other risk factors, to modify the inherited susceptibility to pancreatic cancer, as well as to other gastrointestinal cancers.

Genotype and haplotype analysis of TP53 gene and the risk of pancreatic cancer: an association study in the Czech Republic