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MODERN ONCOLOGY,Mar.2008,VOL.16,NO.3
胃癌组织幽门螺杆菌感染与EB病毒潜伏膜蛋白表达的相关性刘东屏,张艳梅,王炳元
RelationshipbetweenH.pyloriinfectionofgastric cancertissueandexpressionof EBv LMP
LIUDong-ping,ZHANGYan-mei,WANGBing-yuan
Department of Gastroenterology,First Afiliated Hospital of China Medical University, Shenyang 110001,China.
[Abstract]Objective: To study the relationship between the expression of EBV LMP and the H. pylori infection of gastric cancer tissue. Methods: To detect the histopathalogical diagnosis of 80 nomal cases and 97 gastric cancer tissue cases by HE staining. Examination of EBV LMP was by SP histochemical staining. The diagnosis of H. pylori infection was by three methods; HE,H. pylori DNA PCR,and ELISA for anti H. pylori IgG respectively. Results : No expression of EBV LMP in normal mucosa, while the positive rate of EBV LMP expression in cancer was7. 2% . The expression of EBV LMP in can
cancer was much higher than that in normal mucosa ( P <0. 05). The positive rate of
the expression of EBV LMP in gastic cancer tissue with H. pylori infection was 13. 5% (7/52) ,and the positive rate of the expression of EBV LMP in gastric cancer tissue without H. pylori infection was O. The expression of EBV -LMP in gastic cancer tissue with H. pylori infection was much higher than that of gastric cancer tissue without H. pylo ri infection(P <0. 05). Conclusion: No expression of EBV LMP in normal gastrice mucosa, the expression of EBV LMP in gastric cancer mucosa is much higher than in normal mucosa. The expression of EBV LMP in gastic cancer tissue with H: pylori infection is much higher than that of gastric cancer tissue without H. pylori infection.
[Key words) latent membrane protein of Epstain Barr virus (EBV LMP) ; gastric cancer; Helicobacter pylori(H. pylori)
Moderm Oncology 2008,16(3) :0394 0396
【摘要】
目的:观察胃癌组织中幽门螺杆菌(H.pylori)感染和EB病毒潜伏膜蛋白(EBV-LMP)的同步表达
情况,探讨两者在胃癌中的相互关系。方法:80例正常胃黏膜组织和97例胃癌组织,利用HE染色对所取标本进行组织病理学诊断,EBV-LMP测定采用免疫组化SP法,H.pylori感染判定采用HE,H.pylori-DNA PCR和血清ELISA法测定IgG抗体三种方法。结果:正常胃黏膜组织未见EBV-LMP的表达,胃癌黏膜组织 EBV-LMP表达阳性率为7.2%(7/97),胃癌组织EBV-LMP表达明显高于正常胃黏膜组织,差异有统计学意义(P<0.05)。本组病例中H.pylori感染的胃瘤黏膜组织中EBV-LMP的阳性表达率为13.5%(7/52),无H.pylori感染的胃瘤组织EBV-LMP的阳性表达率为O,H.pylori感染的胃瘤组织EBV-LMP表达明显高于无H.pylori感染的胃癌组织,差异有统计学意义(P<0.05)。结论:正常胃黏膜组织无EBV-LMP的表达,胃癌组织中EBV-LMP表达明显高于正常胃黏膜组织,H.pylori感染胃癌组织比无H.pylori感染胃癌组织EBV-LMP呈现高表达,H.pylori感染和EB病毒感染在胃癌的发生和发展过程中可能具有更加深在的相互关系。
【关键词】EB潜伏膜蛋白;胃癌幽门螺杆菌
【中图分类号】R735.2
【文献标识码】A
肿瘤的发生是由多种致瘤因素和机体的免疫状态决定的,近年来生物因素在胃癌发病中的作用受到了普遍的关注,作为生物致癌因素的曲门螺杆菌H.pylori和Epstein Barr病毒(EBV)与胃癌的关系的研究也逐渐受到人们的重视[1-2)。EB病毒潜伏膜蛋白(latentmembraneproteinEBV
【收稿日期】【作者单位】
【作者简介】
20070428
中国医科大学附属第一医院消化内科,辽宁
沈阳
1o0ott
刘东屏(1962-),女,辽宁沈阳人,副教授,硕士生导师,主要从事消化道肿瘤的基础和临床研究。
【文章编号】16724992(2008)03039403
LMP)是一个完整的膜蛋白分子,在EB病毒转化细胞的过程中发挥着重要作用,它是目前所知EB病毒编码的唯一可以转化上皮细胞的蛋白,被认为是EB病毒的瘤基因,也是确定 EB病毒潜伏感染的主要指标(")。我国是EB病毒和H.pylo-i感染率均较高的国家,也是胃癌发病率较高的国家之一。 H.pylori感染与胃癌的相互关系已经得到共识,EB病毒与 H.pylori感染在胃癌的发生中是否有协同作用的文献报道较少。我们通过对177例正常和胃癌组织的分析,探讨EBV。 LMP在胃癌组织中的表达及与H.pylori感染的相互关系。
材料和方法 1.1
标本来源