Association between polymorphisms in TP53 and XRCC1 genes and the high-risk HPV and tumor markers in women with cervical cancer

Aim: Evaluation of the role of TР53 (rs1042522), XRCC1 (rs25487, rs1799782) gene depending on the human papillomavirus (HPV), morphological parameters of the tumor and tumor markers of the blood among women with cervical cancer (CC) in Kyrgyz Republic. Methods. This was a case-control study of 205 women of Kyrgyz origin with morphologically verified CC (N=103) and 102 women without cancer and chronic diseases. Genotyping was performed by PCR-RFLP method. HPV 16 and 18 types, levels of squamous cell carcinoma (SCC) and сarcinoembryonic antigen (CEA) tumor markers were detected. Results. A relationship has been identified between the genetic and clinical and biochemical parameters: Pro/Pro и Arg/Pro for single-nucleotide polymorphism p.Arg72Pro of the ТР53 gene were associated with HPV 16 type - OR 1,98 (95% CI=[1,01-3,86]), p=0,04; Pro/Pro for p.Arg72Pro of the ТР53 - with HPV 18 type - OR =9,15 (95% CI=[1,78-46,96]), p=0,002. Among patients with tumor size of more than 4 cm are more common high levels of CEA and SCC tumor markers. High levels of CEA and SCC are associated mainly with type 16 HPV. Conclusions. The results of the present study suggest that the presence of the Pro allele (genotypes Pro/Pro and Pro/Arg) by SNP p.Arg72Pro (TP53 gene) among women with cervical cancer is associated with a positive status for highly oncogenic HPV 16 and 18 types.

ТР53, киргизская популяция, gene, ТP53, XRCC1, polymorphism, tumor markers, CEA, SCC, cervical cancer, Kyrgyz population, XRCC1, полиморфизм, онкомаркеры, РЭА, SCC, рак шейки матки, ген