Aim: The aim of this study was to investigate whether a functional insertion/deletion polymorphism (rs3783553) located in the 3'-untranslated regions of interleukin-1 A is associated with susceptibility to endometrial cancer (EC) in Chinese Han women.
Methods: A total of 272 patients and 294 age-matched healthy controls were included in the study. The genotype of the rs3783553 polymorphism was determined by polymerase chain reaction polyacrylamide gel electrophoresis.
Results: Our results showed that a significantly reduced risk of EC was found to be associated with the II (insertion/insertion) genotype compared with DD (deletion/deletion) only (P = 0.037, odds ratio = 0.56, 95% confidence interval = 0.32-0.97) as well as compared with the DD + DI (deletion/insertion) genotype (P = 0.032, odds ratio = 0.57, 95% confidence interval = 0.34-0.96) in the recessive model. No significant association was detected between certain clinical features of EC patients and genotype of rs3783553.
Conclusions: This study demonstrates that the rs3783553 polymorphism may be involved in susceptibility to EC. The II genotype seems to be a protective factor for EC in Chinese Han women.
Keywords: Chinese Han women; IL1A; endometrial cancer; insertion/deletion; miRNA; polymorphism.
© 2016 Japan Society of Obstetrics and Gynecology.