基质金属蛋白酶-9和IL-8在鼻咽癌中的表达及其与潜伏膜蛋白-1的相关性研究

Expressions of matrix metalloproteinase-9 and interleukin-8 in nasopharygeal carcinoma and association with Epstein-Barr virus latent membrane protein-1

目的:研究基质金属蛋白酶-9(MMP-9)、IL-8和EB病毒潜伏膜蛋白-1(EBVLMP-1)在鼻咽癌中的表达,探讨它们在鼻咽癌颈淋巴结转移中的意义以及相互关系。方法:应用免疫组织化学技术检测了53例鼻咽癌组织中MMP-9、IL-8、LMP-1的表达情况,同时分析这些指标与患者年龄、性别、病理类型、颈淋巴结转移以及临床分期的相关性。结果:53例鼻咽癌组织中MMP-9的表达率为66.04%(35/53),阳性积分为(33.19±29.73)%;IL-8的表达率为66.04%(35/53),阳性积分为(33.46±30.23)%;LMP-1的表达率为66.04%(35/53),阳性积分为(35.49±29.63)%。MMP-9、IL-8、LMP-1的表达在颈淋巴结转移组中均显著高于无颈淋巴结转移组(均P<0.05),但在年龄、性别、病理类型、临床分期的分组中均差异无统计学意义(均P>0.05)。LMP-1和MMP-9表达存在正相关(r=0.792,P<0.01),LMP-1和IL-8表达也存在正相关(r=0.786,P<0.01)。结论:MMP-9、IL-8、LMP-1的表达和鼻咽癌颈淋巴结转移存在显著相关性;LMP-1和MMP-9、IL-8的表达存在正相关,它可能通过多途径上调MMP-9、IL-8的表达,对鼻咽癌的转移起促进作用。

Objective：To investigate the expressions of matrix metalloproteinase- 9 （MMP-9） and interleukin- 8 （IL-8） in nasopharyngeal carcinoma and their association with Epstein-Barr virus latent membrane protein-1 （LMP-1）. Method： The expressions of MMP-9, IL-8 and LMP-1 were immunohistochemical studied in 53 nasopharyngeal carcinoma sections. We statistically analyzed the correlation of these data and also the relationship between the clinical features and the experimental data of these patients. Result：The positive expression rate of MMP-9, IL- 8 and LMP-1 were all 66.04% （35/53） and their average expression score were （33.19 ±29.73） %, （33.46 ± 30.23） % ,（35.49＋29.63）% respectively. The expressions of MMP-9 and IL-8 both showed positive correlation with the expression of LMP-1 （ r = 0. 792, 0. 786 respectively）. The expressions of MMP-9, IL-8 and LMP-1 showed significant relationship with lymph nodes metastasis （P〈0.05）, but no-significant association with age, gender, pathological classification , and clinical stage. Conclusion： The expressions o{ MMP-9, IL-8 and LMP-1 were significantly associated with neck lymph nodes metastasis in nasopharyngeal carcinoma. The correlation between LMP-1 and MMP-9, IL-8 showed LMP-1 might enhance neck lymph nodes metastasis by up-regulating the expressions of MMP-9 and IL-8.