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裸鼠肝部分切除后肝癌组织基质金属蛋白酶-2及其抑制剂表达 被引量:2

Expression of Matrix Metalloproteinase-2 and Its Inhibitor in Liver Cancer Tissue from Partial Hepatectomy in Nude Mice
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摘要 [目的]观察肝部分切除后裸鼠肝癌组织基质金属蛋白酶-2(MMP-2)及其抑制剂(TIMP-2)表达的变化,以探讨肝部分切除促肿瘤生长的机制。[方法]20只裸鼠随机分成2组:对照组和肝切除组,每组10只,对照组仅将人肝癌组织种植于右肝叶,肝切除组切除肝左叶和中叶后于右肝叶种植人肝癌组织,2组动物于35天后处死,检测肿瘤大小和重量,采用免疫组化和图像分析法检测肝癌组织微血管密度(MVD)、MMP-2和TIMP-2的表达。[结果]肝切除组肿瘤重量和体积、MVD和MMP-2表达较对照组明显增加(P<0.05),TIMP-2则明显减低(P<0.05)。[结论]肝部分切除后MMP-2表达上调、TIMP-2表达下调导致肿瘤新生血管形成增多,可能为其促肿瘤生长的机制。
出处 《肿瘤学杂志》 CAS 2003年第3期183-184,共2页 Journal of Chinese Oncology
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