胃癌组织cagA阳性幽门螺杆菌感染与环氧化酶-2的关系
戚红霞;李晓虹;袁亚
【期刊名称】《重庆医学》 【年(卷),期】2013(000)026
【摘要】目的观察胃癌组织中环氧化酶-2(COX-2)的表达情况,探讨cagA阳性幽门螺杆菌(Hp)感染与COX-2的关系。方法应用聚合酶链反应(PCR)检测42例胃癌患者胃癌组织、癌旁增生组织及癌旁正常胃黏膜组织中 Hp cagA的表达情况。结果胃癌组织COX-2蛋白阳性率明显高于癌旁增生组织及正常胃黏膜组织,差异有统计学意义(P<0.01)。经 PCR基因扩增42例胃癌标本中 Hp cagA阳性25例,Hp cagA阴性17例。Hp cagA阳性组COX-2蛋白阳性表达率为88.0%(22/25),Hp ca-gA阴性组COX-2蛋白阳性表达率为35.3%(6/17),二者比较差异有统计学意义(P<0.01)。结论胃癌组织中存在COX-2的异常表达,cagA阳性Hp感染可能通过调节COX-2的表达水平促进胃癌的发生、发展。%Objective To observe the cyclooxygenase-2(COX-2) expression of gastric tumor tissue ,and to study the relationship between cagA + Helicobacter pylori(Hp cagA+ ) infection and COX-2 .Methods 42 specimens of gastric cancer tissue (including gastric carcinoma ,paracancerous hyperplastic tissue and paracancerous normal gastric mucosa ) in our hospitals from January 2010 to August 2011 were collected and detected the Hp cagA expression by PCR .Results The COX-2 protein positive rate in the gas-tric tcancer tissue was significantly higher than that in the
paracancerous hyperplastic tissue and normal gastric mucosa (P<0 .01) . Among 42 cases of gastric cancer specimens ,Hp cagA+ was in 25 cases ,Hp cagA - was in 17 cases .The COX-2 protein positive rate was 88 .0% (22/25) in the Hp cagA+ group and 35 .3% (6/17) in the Hp cagA - group .The COX-2 protein positive rate in the Hp cagA+ gastric tissue was significantly higher than that in the Hp cagA - gastric tissue(P<0 .01) .Conclusion Abnormal ex-pression of COX-2 exists in gastric tcancer tissue ,cagA+ Helicobacter pylori infection may promote the occurrence and development of gastric cancer by regulating the expression level of COX-2 . 【总页数】2页(3087-3088)
【关键词】胃肿瘤;螺杆菌属;环氧化酶-2;cag A 【作者】戚红霞;李晓虹;袁亚
【作者单位】上海市市北医院消化内科 200432;上海市普陀区人民医院消化内科 200060;上海市普陀区人民医院病理室 200060 【正文语种】中文 【中图分类】 【文献来源】
https://www.zhangqiaokeyan.com/academic-journal-cn_chongqing-medicine_thesis/0201231382504.html 【相关文献】
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