Abstract 6103: The association of genetic polymorphisms in DNA repair genes XRCC1 and 3 with cervical cancer risk among Bangladeshi females

Abstract Introduction and Objective: Worldwide, cervical cancer ranks the second most common cancer in women. Sequence variations in DNA repair genes X-ray repair cross complementing (XRCC) 1 and 3 genes can lead to can result cellular function aberration leading to cancers. Single nucleotide polymorphisms (SNPs) in XRCC1 (Arg399Gln) and XRCC3 (Thr241Met) genes have been shown to cause individual variation in their DNA repair capacity. The aim of this study was to investigate the association of XRCC1 Arg399Gln and XRCC3 Thr241Met SNPs with susceptibility to cervical cancer among Bangladeshi populations. Methods: In the current case-control study 124 cervical cancer patients and 148 age matched healthy controls were recruited. Genomic DNAs were isolated from peripheral blood collected from the participants and genotyped for candidate SNPs using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Results: For XRCC1, heterozygous Arg/Gln and combined heterozygous plus variant homozygous Gln/Gln genotypes showed 1. 78-fold (95% CI 1. 0037 to 2. 8771, p=0. 0484) and 1. 8627-fold (95% CI 1. 1470 to 3. 0250, p = 0. 0119) increased risk of cervical cancer, respectively, when compared with normal homozygous Arg/Arg genotype. The variant Gln allele was positively associated with cervical cancer by 1. 68-fold increase (95% CI 1. 1732 to 2. 3980, p = 0. 0046). Similarly, for XRCC3, Thr/Met heterozygous and combined Thr/Met + Met/Met genotypes were found to be associated with 1. 6993-fold (95% CI 1. 0398 to 3. 0166, p=0. 0354) and 1. 8312-fold (95% CI 1. 0890 to 3. 0791, p = 0. 0225) higher risk, respectively, when compared with normal homozygous Thr/Thr genotypes. The variant Met allele showed significant association with 1. 71-fold increased risk. Conclusion: XRCC1 (Arg399Gln) and XRCC3 (Thr241Met) SNPs may be positively associated with increased cervical cancer risk in Bangladeshi females. Citation Format: Md Mustafizur Rahman, Laboni Das, Sadia Rahman, Amir Hossain, Razia Sultana. The association of genetic polymorphisms in DNA repair genes XRCC1 and 3 with cervical cancer risk among Bangladeshi females abstract. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 1 (Regular Abstracts) ; 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84 (6Suppl): Abstract nr 6103.