子宫内膜癌组织中PCNA、MVD的检测及其意义

背景与目的:子宫内膜癌发病率呈逐年上升趋势,但其确切发病机制及预后因素尚不明确。本实验旨在研究增殖细胞核抗原(proliferating cell nuclear antigen.PCNA)指数、微血管密度microvessel density.MVD雪在子宫内膜癌组织中的表达,并结合肿瘤的手术病理分期、病理分级,进一步判断其价值。方法:采用免疫组织化学SP法,检测62例子宫内膜腺癌、22例正常子宫内膜组织的PCNA指数和MVD,结合肿瘤的临床分期、病理分级,对结果进行统计学分析。结果:子宫内膜癌组织中PCNA指数(54.49±9.29)和MVD(48.97±8.56)较正常子宫内膜明显增高(P<0.05);子宫内膜癌的期别越晚、分化越差,PCNA指数和MVD越高(P<0.05);在子宫内膜癌组织中,PCNA指数与MVD呈正相关。结论:PCNA指数、MVD增高与子宫内膜癌的发展有关;血管生成促进肿瘤细胞增殖。

Significance of proliferating cell nuclear antigen (PCNA) index and microvessel density (MVD) in endometrial carcinoma

BACKGROUND & OBJECTIVE: Incidence of endometrial carcinoma (EC) is ascending, but its pathogenesis and prognosis are unclear. This study was designed to investigate correlation of proliferating cell nuclear antigen (PCNA) index, and microvessel density (MVD) to pathologic stage, and differentiation of endometrial carcinoma. METHODS: PCNA index and MVD in 62 specimens of endometrial carcinoma, and 22 specimens of normal endometrium were detected by SP immunohistochemistry. Correlation of PCNA index, and MVD to pathologic stage, and differentiation of endometrial carcinoma was statistically analyzed. RESULTS: PCNA index, and MVD in endometrial carcinoma were significantly higher than those in normal endometrium (54.5+/-9.3 vs. 32.7+/-7.7, and 49.0+/-8.6 vs. 32.4+/-11.0,P<0.05). PCNA index and MVD positively correlated with pathologic stage and differentiation of endometrial carcinoma (P<0.05). PCNA index positively correlated with MVD in endometrial carcinoma. CONCLUSIONS: The increase of PCNA index and MVD may enhance development of endometrial carcinoma. Angiogenesis might play a role in promoting cell proliferation.