人胃癌组织中CLIC4基因表达与微卫星不稳定性的关系
DOI: 10.3971/j.issn.1000-8578.2016.07.006
Keywords: 2 Matched Case-control Investigation on Risk Factors of Gastric Cancer in Xianyou County,Efficacy and Safety of Weekly Liposome-paclitaxel or Oxaliplatin Combined with Tegafur on Elderly Advanced Gastric Cancer,Periplocin Extracted from Cortex Periplocae(CPP) Induced Apoptosis of Gastric Cancer Cells MGC-803 Through Lysosomal Pathway,Gastric Cancer Mortality Trend and Difference Decomposition Analysis in Kunshan, Jiangsu Province, 1981-2014,Effect of Ubiquitin-like with PHD and Ring Finger Domain 1 on Invasion and Metastasis of Gastric Cancer and Related Mechanism,Effects of miR-711 on Invasion, Metastasis and Epithelial Mesenchymal Transition of Gastric Cancer Cells MGC-803,Role of p53β Isoform in Inhibitory Effect of rmhTNF Combined with Cisplatin on Human Gastric Cancer Cell Growth,Effect of siRNA Targeting Migration-inducing Protein 7 Gene on Invasion and Migration of Human Gastric Cancer Cells MKN45,Optimization of Housekeeping Gene for Normalization of Quantitative Polymerase Chain Reaction Assay in Gastric Cancer Research,A Case Report of Synchronous Gastric Cancer and Gastric Diffuse Large B-Cell Lymphoma,Development of Peritoneal Carcinomatosis from Gastric Cancer and Current Status of Treatment in China,Clinical Significance of Gap Junction Ultrastructure Change and Connexin-43 Expression in Gastric Cancer Tissues
Abstract:
摘要 目的 探讨微卫星DNA不稳定性在胃癌发生中的作用及其与CLIC4基因表达的关系。方法 采用PCR、非变性聚丙烯酰凝胶电泳及银染法检测40例胃癌组织及其相应的手术切缘正常组织中D1S234、D1S199、D1S507的微卫星不稳定性(MSI);同时用免疫组织化学检测该40例及另外55 例胃癌组织中CLIC4的表达。结果 D1S234、D1S199和D1S507阳性率分别为25%(10/40)、27.5%(11/40)和5%(2/40)。各组织病理类型之间差异无统计学意义(P>0.05)。40例胃癌组织中,CLIC4在肿瘤实质阳性率为25%(10/40),肿瘤间质阳性率为67.5%(27/40),同时阳性率为15% (6/40),同时阴性率为12.5%(5/40)。Spearman等级相关分析显示D1S199与CLIC4肿瘤实质阳性率呈正相关(r=0.137, P=0.042),D1S507与CLIC4肿瘤间质阳性率呈负相关(r=-4.22, P=0.009)。95例胃癌组织中,CLIC4在肿瘤间质阳性率为72.6%(69/95),肿瘤实质阳性率为51.6%(49/95),同时阳性率为24.2%(23/95)。肿瘤间质阳性率明显高于肿瘤实质阳性率(χ2=8.945, P=0.003),肿瘤间质阳性病例主要为低分化及黏液腺癌,肿瘤实质阳性病例主要为高-中分化腺癌。随着肿瘤分化程度的降低,CLIC4间质阳性率增加。结论 D1S199与D1S507的MSI可能与胃癌的发生密切相关;CLIC4可能与胃癌的肿瘤间质成纤维化有关,促进了胃癌的演进
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