Objective
To investigate the association between the polymorphism of miR‐146a and The ubiquitin‐like with PHD and ring‐finger domains 1 (UHRF1) expression in patients with gastric cancer.
Methods
MiR‐146a rs2910164 was genotyped in 130 patients with gastric cancer and 130 cancer‐free individuals using polymerase chain reaction (PCR)‐restriction fragment length polymorphism. UHRF1 expression was analyzed in 22 gastric cancer tissues and their adjacent normal tissues using quantitative real‐time PCR.
Results
No significant differences in genotype distributions of miR‐146a rs2910164 were found between cases and controls, but we observed that grade II tumors were more frequently detected in patients with CG/CC genotype compared to those with CC genotype. UHRF1 expressions in cancerous tissues were significantly higher than in noncancerous tissues (1.89‐fold). Patients with CC genotype showed a significant increase in UHRF1 expression in comparison to the carriers of GG/CG genotype. A higher UHRF1 expression was associated with cancer stage IV and grade III (P<0.05).
Conclusion
The overexpression of UHRF1 was correlated with the stage and grade of gastric cancer and is associated with the genotype distribution of rs2910164.