【摘要】 目的 :研究肿瘤组织癌相关基因P53、Rb、P16、和P21表达水平的临床意义。 方法:用流式细胞仪(FCM)检测30例卵巢癌和乳腺癌瘤体中心灶P53、Rb、P16、和P21异常表达的阳性细胞百分率。 结果: 卵巢癌和乳腺癌的P53、Rb、P16、和P21基因蛋白表达水平及异常表达率均无明显差异(P>0.05)。30例肿瘤的4种基因异常表达率分别为 :P5340 % ;Rb53.3 % ;P2166.7 %和P1653.3 %。96.7 %(29/30)的肿瘤存在至少一种以上癌相关基因的异常表达。异常表达两个以上癌相关基因的患者较易出现临床转移。 结论:联合检测实体肿瘤P53、Rb、P16、和P21基因蛋白表达水平并综合分析这些指标 ,有助于识别肿瘤不同的生物学特性和准确判断患者预后更多还原

【Abstract】 Purpose: To study the clinical significance of expression levels of P53、Rb、P16 and P21 in cancer tissues. Methods: Flow cytometric analysis was used to detect abnormal expression of P53,Rb,P16,P21 in cancer tissues obtained from the 30 patients with ovarian carcinoma or breast cancer. Results: The expression levels and abnormal expression rates of P53、Rb、P16 and P21 in ovarian carcinoma were not differ from that in breast cancer.The abnormal expression rates of P53,P21,P16 and Rb in 30 cases were 40 %, 66.7 % ,53.3 % and 53.3 % ,respectively. The rate of co-expression of two or more of them was 76.7 %; 96.7 % (29/30) of tumorsshowedabnormalexpressionofatleastoneitem.Patientswithabnormalexpressionoftwoitemsormorehave clinicalmetastasiseasily.Conclusion:CombinationdetectionexpressionlevelsofP53,P21,P16andRbin cancertissues,andcomprehensiveanalysisoftheseparameterscanbehelpfultoidentifybiologicalbehaviorof tumorandpredicttheprognosis.更多还原