CASC15 polymorphisms are correlated with cervical cancer susceptibility in Chinese women

Cervical cancer is a frequent, common cancer in women, and causes high cancer-related deaths among women in our world. Accumulating studies provided an important evidence for long noncoding RNA (lncRNA) polymorphisms in the susceptibility of various cancer. Here, we recruited 494 cervical cancer cases and 504 unrelated controls to assess the relationship between CASC15 (OMIM# 616610) polymorphisms and cervical cancer susceptibility.

Agena MassARRAY platform was conducted to genotype CASC15 polymorphisms. Odds ratios (ORs) and 95% confidence intervals (CIs) were analyzed through logistic regression to adjust for confounding factors, such as age and gender.

Our study suggested that rs12212674 (NC_000006.12:g.22086845T>A) "A" allele was significantly associated with an increased risk of cervical cancer (OR = 1.31, 95% CI = 1.01-1.69, p = .041). The result was demonstrated in the log-additive model (OR = 1.32, 95% CI = 1.02-1.72, p = .037). After age stratification, we also found that the "TT" genotype of rs4712653 (NC_000006.11:g.22125964T>C) in CASC15 was interaction with a higher cervical cancer risk in subjects aged ≤51 years in the co-dominant model (OR = 2.08, 95% CI = 1.02-4.25, p = .044) and the recessive model (OR = 2.11, 95% CI = 1.05-4.24, p = .036). Whereas no significant correlation was found among other SNPs of CASC15 polymorphisms and the risk of cervical cancer. MDR analysis illustrated that the interaction between rs7740084 (NC_000006.11:g.21727531G>A), rs1555529 (NC_000006.11:g.21691704A>G), and rs12212674 had a certain effect on the progress of cervical cancer.

Our results revealed a potential interaction between CASC15 polymorphisms and cervical cancer susceptibility. The results provided important insights into CASC15 function in the development of cervical cancer.