The amino acid substitution Arg72Pro in the TP53 protein has an impact on the biochemical and biological activity of this protein, and is associated with several types of cancers. However, the Arg72Pro polymorphism exhibits inconsistent contribution as a risk factor in various cancer types. Therefore, using PCR-RFLPs, we investigated the distribution of Arg72Pro genotypes and alleles in patients with laryngeal cancer (n=123) and controls (n=300) in Poland. We observed that patients with the Pro/Pro and Arg/Pro TP53 genotypes displayed a 1.755-fold increased risk of laryngeal cancer (95% CI=1.149-2.680, P=0.0099). However, we did not find a significant increase in laryngeal cancer risk for the homozygous Pro/Pro TP53 genotype OR=2.093 (95% CI=1.046-4.192, P=0.0530). This result suggests that the TP53Pro variant may contribute to the risk of laryngeal cancer development in Polish patients.
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