Interaction between TP53 and XRCC1 increases susceptibility to cervical cancer development: a case control study

Area of Science:

• Genetics
• Oncology
• Molecular Biology

Background:

• Cervical cancer is a major cause of female reproductive tract malignancies globally.
• Genetic susceptibility plays a crucial role in tumor development.
• Identifying specific gene polymorphisms associated with cervical cancer risk is vital for understanding disease etiology.

Purpose of the Study:

• To investigate the association between polymorphisms in XRCC1, TP53, and FGFR3 genes and cervical cancer risk.
• To explore the potential impact of single nucleotide polymorphism-single nucleotide polymorphism (SNP-SNP) interactions among these genes on cervical cancer susceptibility.
• To analyze these genetic factors in a Chinese female population.

Main Methods:

• A case-control study involving 340 women from Chongqing, China (121 cervical cancer cases, 118 healthy controls, 101 elderly controls).
• Genotyping of three specific SNPs: XRCC1 rs25487, TP53 rs1042522, and FGFR3 rs121913483 using MAMA-PCR.
• Statistical analysis to assess individual SNP associations and SNP-SNP interactions with cervical cancer risk.

Main Results:

• No significant findings for FGFR3 rs121913483 in the studied population.
• The XRCC1 rs25487 polymorphism was found to be significantly more prevalent in cervical cancer patients.
• A significant 2-locus SNP-SNP interaction between XRCC1 rs25487 and TP53 rs1042522 was associated with increased cervical cancer risk (OR=4.63 vs. controls, OR=17.61 vs. elderly controls).

Conclusions:

• This study is the first to report a novel and significant interaction between XRCC1 and TP53 gene polymorphisms.
• This gene-gene interaction is strongly associated with an increased susceptibility to cervical cancer in women from southwestern China.
• Findings highlight the importance of combined genetic factors in cervical cancer risk assessment.