Clinicopathological Significance of Nucleosome Remodeling and Deacetylase Complex Expression in Endometrial Carcinoma

Background/Aim: Only a few studies have examined the expression of nucleosome remodeling and deacetylase complex in endometrial carcinoma (EC). The aim of this study was to analyze the expressions of histone deacetylase (HDAC1), HDAC2, and chromodomain helicase DNA-binding protein 4 (CHD4) in EC. Patients and Methods: Sixty cases of EC were categorized into two clusters based on the expression levels of the three proteins. Results: Cluster 1 (C1) exhibited elevated expressions of HDAC2 and CHD4 compared with cluster 2 (C2). Notably, 75% of cases in C2 represented non-aggressive histological types, whereas 37.5% of cases in C1 manifested aggressive types. C2 exclusively comprised pathological tumor stage 1 (pT1) tumors, whereas C1 included pT2 and pT3 tumors. In C1, 25% of cases displayed aberrant p53 expression, contrasting with the absence of such expression in C2. Furthermore, only one patient in C2 experienced disease recurrence, whereas 20.8% of patients in C1 developed recurrent tumors. Conclusion: High HDAC2 and CHD4 expression may be associated with adverse clinicopathological characteristics in EC. Further studies are needed to validate these results.