Twist转录因子、E-钙黏蛋白和N-钙黏蛋白在乳腺癌中的表达及意义

被引:11
作者
马怡晖
王凯
李磊
卢朝辉
陈杰
机构
[1] 中国医学科学院北京协和医学院北京协和医院病理科
基金
高等学校博士学科点专项科研基金;
关键词
乳腺肿瘤; 肿瘤转移; Twist转录因子; 钙黏着糖蛋白类;
D O I
暂无
中图分类号
R737.9 [乳腺肿瘤];
学科分类号
100214 ;
摘要
目的观察上皮间质转化因子Twist转录因子(简称Twist)和相关蛋白E-和N-钙黏蛋白(cadherin)在乳腺癌中的表达及其与患者临床病理指标的关系。方法采用免疫组织化学SP法检测56例浸润性导管癌、38例浸润性小叶癌和41例导管内癌以及10例正常乳腺组织中Twi st、E-和N-cadherin的表达。结果 (1)三种病理类型乳腺癌组织中,Twist阳性率分别为46.4%(26/56)、79.0%(30/38)和26.8%(11/41),其中浸润性小叶癌中Twist阳性率显著高于浸润性导管癌和导管内癌(分别P=0.002、0.000);E-cadherin阳性率分别为78.6%(44/56)、29.0%(11/38)和80.5%(33/41),其中浸润性导管癌和导管内癌中E-cadherin阳性率显著高于浸润性小叶癌(均P=0.000);N-cadherin阳性率分别为53.6%(30/56)、68.4%(30/56)和31.7%(13/41),其中在浸润性导管癌和浸润性小叶癌中的阳性表达显著高于导管内癌(分别P=0.033、0.001)。(2)135例乳腺癌组织中Twist和E-cadherin表达呈显著负相关性(P=0.005,Spearman相关系数-0.239);Twist和N-cadherin表达呈显著正相关性(P=0.000,Spearman相关系数0.319)。(3)乳腺浸润性导管癌差分化组中N-cadherin阳性率显著高于中分化和高分化组(P=0.004)。(4)乳腺浸润性小叶癌淋巴结转移组中Twist阳性率显著高于淋巴结未转移组(P=0.037)。结论三种蛋白在三种乳腺癌组织中的表达差异较大。Twist阳性表达与乳腺浸润性小叶癌淋巴结转移相关。N-cadherin阳性率与乳腺浸润性导管癌组织学分级相关。检测这三个指标可为研究乳腺癌的进展和转移机制及评判其生物学行为提供有价值的参考。
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