摘要
目的探讨细胞凋亡抑制因子存活素在甲状腺癌中的表达效应及其与血管内皮生长因子(VEGF)表达的关系。方法采用免疫组织化学方法(SABC法)检测68例甲状腺癌、12例甲状腺腺瘤和10例正常甲状腺组织中存活素、caspase-3、VEGF蛋白表达,并结合甲状腺癌主要临床病理参数进行分析。结果存活素在正常甲状腺组织中未见表达,在甲状腺腺瘤中仅现微弱表达(16.7%),而在甲状腺癌中呈显著表达(57.4%);caspase-3在3种组织均有较高表达(70.0%、75.0%、69.1%),而VEGF在甲状腺癌和腺瘤中有不同程度表达(75.0%和41.7%);甲状腺癌中存活素与caspase-3表达无关,与VEGF表达显著正相关(r=0.302,P<0.05),且二者的表达在甲状腺癌组织学分型、临床分期及淋巴转移组间差异均有统计学意义。结论存活素特异性地表达于甲状腺癌组织中,可能通过阻抗细胞凋亡,并与VEGF协同促进血管生成,参与甲状腺癌的发生发展。
Objective To investigate the expression of survivin (an apoptosis inhibitor) in thyroid carcinoma and its relationship with vascular endothelial growth factor (VEGF) expression. Methods Sixty-eight cases of thyroid carcinoma, 12 cases of thyroid adenoma and 10 cases of normal thyroid tissue were involved. Immunohistochemistry (SABC method) was used to detect the expression of survivin, caspase-3 and VEGF, and then their relationship with the major clinicalpathologicalparametersofthyroidcarcinoma was analysed. Results No survivin was expressedinnormalthyroidtissue,butsurvivinwasweakly expressed in thyroid adenoma (16.7%) and strongly expressed in thyroid carcinoma (57.4%); caspase-3 was obviously expressed in three kinds of tissue (70.0%, 75.0%, 69.1%), and VEGF was expressed in 75.0% of thyroid carcinoma and 41.7% of thyroid adenoma. In thyroid carcinoma, survivin expression had no correlation with caspase-3 expression, but significant positive correlation existed between surviving and VEGF (r=0.302,P<0.05) according to histological classification, clinical staging and lymph node metastasis. Conclusions Survivin is specifically expressed in thyroid carcinoma and is probably involved in the pathogenesis of thyroid carcinoma via inhibiting apoptosis and promoting angiogenesis with the synergetic effect of VEGF.
出处
《中华内分泌代谢杂志》
CAS
CSCD
北大核心
2005年第3期244-247,共4页
Chinese Journal of Endocrinology and Metabolism
关键词
存活素
血管内皮生长因子
甲状腺癌
基因表达
血管生成
Thyroid carcinoma
Survivin
Apoptosis
Vascular endothelial growth factors
Angiogenesis
