纤溶酶原激活剂在妊娠滋养细胞疾病中的表达及其与肿瘤侵袭的关系

The expression of uPA in gestational trophoblastic disease and the association with trophoblastic tumor invasiveness

目的:明确尿激酶型纤溶酶原激活剂(uPA)在妊娠滋养细胞肿瘤中的表达及其与恶性滋养细胞肿瘤侵袭的关系。方法:应用分子原位杂交技术检测葡萄胎、侵蚀性葡萄胎及绒毛膜癌标本中uPA的表达情况,并分析其与恶性滋养细胞肿瘤侵袭的关系。结果:①uPA在葡萄胎、侵蚀性葡萄胎及绒毛膜癌中的表达差异有显著性(P<0.001);②通过秩和检验对各组进行两两比较,uPA在侵蚀性葡萄胎及绒毛膜癌中的表达比葡萄胎均显著增高(P<0.001)。③侵蚀性葡萄胎及绒毛膜癌浸润子宫肌层的深度与uPA的表达状况差异有显著性(P<0.05)。结论:滋养细胞的恶性生物学行为与uPA的表达异常之间存在着一定的相关性。

Purpose:To study the expression of uPA in gestational trophoblastic cells and the relationship between uPA and the invasiveness of malignant trophoblastic tumor. Methods:73 samples from patients with gestational trophoblastic disease were harvested.In situ hybridization was employed to detect uPA expression in all of these samples. Results:① There was significant difference in the expression of uPA in cytotrophblasts among hydatidiform mole,invasive mole and choriocarcinoma(P<0.001). ② By Mann-Whitney Test , the intensity of uPA DAB staining was significantly increased in malignant cytotrophblasts either from invasive mole or choriocarcinoma compared with benign cytotrophblasts from hydatidiform mole.③ There was significant difference of uPA in invasive mole and choriocarcinoma with different myometrium invasive depth(P<0.05). Conclusions:The increase or even appearance of uPA expression may closely related to the high invasiveness of malignant cytotrophblasts.