ABSTRACT
BACKGROUND: Despite the fact that numerous studies have investigated the association between genetic polymorphisms and colorectal cancer (CRC), more research is required to comprehend the molecular mechanisms of CRC. In the present study, we investigated the association between lncRNA HOTAIR rs2366152 and rs1899663 polymorphisms with CRC susceptibility in the Iranian population. METHODS: This case-control study consisting of 187 CRC patients and 200 healthy samples. The tetra-amplification refractory mutation system-polymerase chain reaction (Tetra-ARMS-PCR) technique was used for the genotyping of rs2366152 and rs1899663 polymorphisms. RESULTS: The findings showed that the AG genotype of the rs2366152 polymorphism has a protective effect on CRC susceptibility (OR = 0.60, 95% CI: 0.38-0.94, p-value = 0.023). Furthermore, rs2366152 polymorphism associated with CRC risk in an over dominant inheritance model (p-value = 0.0089). According to the outcomes of the rs1899663 polymorphism, the GT genotype had protective effects on CRC risk (OR = 0.55, 95% CI: 0.35-0.86, p-value = 0.008). Moreover, statistical analysis has shown that the rs1899663 polymorphism was associated with CRC risk in dominant (p-value = 0.013) and overdominant (p-value = 0.0086) inheritance models in the Iranian population. CONCLUSION: This study confirmed that HOTAIR rs2366152 and rs1899663 polymorphisms associated with CRC risk in different inheritance models. It is indeed necessary to do additional research to verify our findings.
