Backgrounds:
Cervical cancer (CC) is one of the leading cause of death in women worldwide, HPV infection is the major risk factor in the disease development, 0and however other risk factor such as chemical carcinogens, genetic susceptibility and altered immune system are also a cause of the disease progression. In the light of the above statement we studied the base excision repair pathway (BER).
Methods:
We identified and studied the association of Single Nucleotide polymorphisms in the DNA repair genes of
XRCC1
(
Arg194Trp, Arg399G
,) and
APE-1Asp/148Glu
to the susceptibility of cervical cancer (CC) in North Indian population. In our study of cases (n=102). Controls (n=109) were recruited from among women without cervical abnormalities. Genotypes were determined by PCR-CTPP method, Taking DNA from peripheral blood in a case control study.
Results:
A positive association was observed between the polymorphisms of
XRCC1
genes, that is, in codons 194 (P=0.03, odds ratio (OR) =2.39, 95% confidence interval (CI)=5.2–1.1), 280 (P=0.01, OR=4.1, 95% CI=11.5–1.3) and 399 (P=0.01, OR=3.4, 95% CI=8.6–1.3) while
APE-1
genotype GG (p=0.03,odds ratio(OR)=0.2,95% confidence interval (CI)=0.97-0.004) we observed a statistically significant protective role in developing cervical cancer.
Conclusion:
Our results suggested that,
XRCC1
gene is an important candidate gene for susceptibility to cervical cancer. Although the sample size was small, the present study indicate a statistical association between cervical cancer and
XRCC1 SNPs
. Future studies are needed that may provide a better understanding of the association between gene polymorphism and cervical carcinoma risk.