医学免费论文:HPV16E6蛋白在宫颈病变组织中的表达及临床应用
【摘要】 目的 研究人乳头瘤病毒16型E6蛋白(human papillomavirus16 E6 protein,HPV16E6)在宫颈病变组织中的表达及其与临床病理特征之间的关系。方法 采用免疫组化SP法检测HPV16E6蛋白在宫颈正常组织、慢性炎症、宫颈上皮内瘤变(cervical intraepithelial neoplasia,CIN)、浸润癌上皮中的阳性表达情况。结果 HPV16E6在正常宫颈、宫颈炎、CIN,宫颈癌各组中,阳性表达率分别为0.5%、38.35%、46.15%、71.11%,4组比较差异有统计学意义(χ2=27.50,P<0.01)。经χ2分割后比较(α′=0.007143),宫颈癌组、CIN组、宫颈炎组的阳性率显著高于正常宫颈组(P<0.05),宫颈癌组的阳性率显著高于宫颈炎组(P<0.01)。HPV16E6与年龄、病理类型、宫旁或脉管浸润相关(P<0.05)。结论 HPV16E6与宫颈癌的启动、发生、发展及侵袭转移均密切相关。HPV疫苗对于宫颈癌的防治有广泛的应用前景。
【关键词】 人乳头瘤病毒16型E6蛋白;免疫组织化学;宫颈肿瘤;HPV疫苗
The expression and clinical significance of HPV16E6 in the pathological tissues of cervix ZHANG Lihua,XIN Huadong,WU Shiqian.Department of Gynecology, Handan Central Hospital,Hebei,Handan 056001,China
【Abstract】 Objective To investigate the relationship between the expression of human papillomavirus16 E6 protein (HPV16E6) and clinical pathological characteristics.Methods The expression of HPV16E6 protein in patients with cervical cancer, cervical intraepithelial neoplasia (CIN),chronic cervicitis and normal cervical epithelium were examined by immunohistochemitry.Results The positive rate of HPV16E6 protein was 71.11%,46.15%,38.35%,0.5% in cervical cancer,CIN,chronic cervicitis and normal cervical epithelium respectively. There were significant differences in the positive rates among the 4 groups (P<0.01).The positive rate in cervical cancer group was significantly higher than that in chronic cervicitis group and normal cervical epithelium group(P<0.01).The positive rate in CIN and cervicitis group was significantly higher than that normal cervical epithelium group(P<0.01).The positive expression of HPV16-E6 was correlated with the age of the patients ,pathological types and the infiltration of latero-uterus or haemal tube(P<0.05).Conclusion HPV16E6 plays an important role in the genesis,development,invasion and metastasis of cervical carcinoma. The vaccine of HPV has wide application prospect in the prevention and treatment of cervical carcinoma医.学.全.在.线www.lindalemus.com.
【Key words】 HPV16E6;immunohistochemitry;cervical cancer;vaccine of HPV
宫颈癌是女性最常见的恶性肿瘤[1],在我国发病率居女性恶性肿瘤的首位,是导致女性死亡的主要原因[2]。高危型HPV的持续感染是宫颈癌及其癌前病变的直接病因,没有持续高危HPV感染,便没有可能发生宫颈鳞癌[3,4]。本研究采用免疫组化法检测人不同宫颈病变组织中的HPV16E6蛋白的阳性率,探讨HPV16E6蛋白不同宫颈病变组织中的表达情况及其与宫颈癌临床病理参数之间的关系。
1 资料与方法
1.1 一般资料 本研究标本取自2007年3月至2009年3月在河北省邯郸市中心医院妇科初诊的宫颈癌患者45例。年龄26~61岁,平均年龄46岁。其中鳞癌36例,腺癌6例,腺鳞癌及透明细胞癌3例。根据国际妇产科联盟(FIGO,2000年)标准分期:Ⅰ期25例,Ⅱ期17例,Ⅲ期3例。组织分化程度G1、G2、G3分别为12例、20例、13例。患者术前均未接受放、化疗。选择同期因妇科良性疾病手术治疗或门诊治疗患者的正常宫颈组织21例,宫颈慢性炎症73例,CIN 26例。所有标本于离体0.5 h内取材,以10%中性甲醛固定,石蜡包埋,切片备用。所有取材标本均常规HE染片确定病理学诊断、组织学类型和分级,病历资料完整。