EZH2、Ki-67在成釉细胞瘤中的表达及其临床意义

Expressions of EZH2 and Ki-67 in ameloblastoma and their clinical significance

目的 研究EZH2、Ki-67在成釉细胞瘤与正常口腔黏膜中的表达及两者之间的关系.方法 采用免疫组织化学SP法检测EZH2、Ki-67在50例成釉细胞瘤（30例原发、20例复发）和20例正常口腔黏膜中的表达.结果 EZH2在复发性成釉细胞瘤中蛋白阳性表达率为（36.25±7.24）％,高于原发性成釉细胞瘤的（25.26±4.28）％（P＜ 0.001）.Ki-67在复发性成釉细胞瘤中蛋白阳性表达率为（34.96±5.28）％,高于原发性成釉细胞瘤的（29.68±3.27）％（P＜0.05）.EZH2和Ki-67两者的表达呈正相关（P＜0.05）,但EZH2和Ki-67的表达与肿瘤的大小及患者性别无关（P＞0.05）.结论 成釉细胞瘤中存在EZH2和Ki-67的高表达,在成釉细胞瘤的发生、发展中起关键作用,与其复发有关,并可作为判定其预后的参考指标.联合检测EZH2和Ki-67蛋白的表达有助于为成釉细胞瘤的进程、复发的可能及其预后判断提供临床依据.

Objective To study the relationship between EZH2 and Ki-67 expression and both in ameloblastoma and normal oral mucosa.Methods EZH2 and Ki-67 were detected by immunohistochemical SP method in 50 cases of ameloblastoma （30 cases primary,20 cases recurrence） and expression in 20 cases of normal oral mucosa.Results The positive expression of EZH2 protein in recurrent ameloblastoma was （36.25±7.24） ％,significantly higher than that of primary ameloblastomas （25.26±4.28） ％ （P ＜ 0.001）.Ki-67 in recurrent positive expression in ameloblastoma was （34.96±5.28） ％,significantly higher than that of primary ameloblastomas （29.68±3.27） ％ （P ＜ 0.05）.There was positively corTelated on EZH2 and Ki-67 （P ＜ 0.05）,but not on the size of tumor and gender （P ＞ 0.05）.Conclusions There are high expression of EZH2 and Ki-67 in ameloblastoma,and their play key role in the occurrence and development of ameloblastoma.They can be used as a reference index for the prognosis.The combined detection of EZH2 and Ki-67 protein expression with clinical evidence and its prognosis may contribute to the process of ameloblastoma and recurrence.