视网膜母细胞瘤组织中 Ki-67、PTEN 表达的变化

目的：探讨视网膜母细胞瘤组织中 Ki-67、PTEN 表达的变化及其临床意义。方法采用免疫组化S-P 法检测97例视网膜母细胞瘤和28例正常视网膜组织中 Ki-67、PTEN 的表达水平，并分析两者与视网膜母细胞瘤临床病理参数的关系。结果视网膜母细胞瘤组织中 Ki-67的阳性率为66.0%（64/97），高于正常视网膜组织的14.3%（4/28）（χ2=23.406，P <0.05）；视网膜母细胞瘤组织中 PTEN 的阳性率为53.6%（52/97），低于正常视网膜组织的92.9%（26/28）（χ2=14.266，P <0.05）。视网膜母细胞瘤组织中 Ki-67、PTEN 的表达均与患者的分化程度、临床分期有关（P <0.05）。视网膜母细胞瘤组织中 Ki-67、PTEN 的表达呈负相关关系（r =-0.493，P <0.05）。结论 Ki-67、PTEN 的异常表达参与了视网膜母细胞瘤的侵袭和病程进展。

Expressions of Ki-67 and PTEN in the Retinoblastoma

Objective To investigate the expressions of Ki-67 and PTEN in the retinoblastoma and the signifi-cance. Methods Immunohistochemical S-P method was used to detect the expressions of Ki-67 and PTEN in the 97 patients with retinoblastoma and 28 patients with normal retina tissues,their relationship with clinicopathological pa-rameters were analyzed. Results The positive rate of Ki-67 was 66. 0%(64 / 97)in the retinoblastoma,and was 14. 3%(4 / 28)in the normal retina tissues( χ2 = 23. 406,P < 0. 05). The positive rate of Ki-67 was 53. 6%(52 / 97)in the retinoblastoma,and was 92. 9%(26 / 28)in the normal retina tissues(χ2 = 14. 266,P < 0. 05). The expressions of Ki-67 and PTEN in the retinoblastoma were related with cell differentiation degree and clinical stage (P < 0. 05). In the retinoblastoma,the expression of Ki-67 was negatively related with PTEN(r = - 0. 493,P <0. 05). Conclusion Abnormal expressions of Ki-67 and PTEN may be related to the infiltration and development of retinoblastoma.