| | | | | p16~(INK4A)、p53、Ki-67及ER在宫颈病变组织中的表达及其相关性研究 | | | 顾依群;高子芬;汪颖南;卢利娟;孙笑非;王荔;李敏;袁峥 | | | 目的探讨p16INK4A、p53、Ki-67及雌激素受体(ER)在不同程度宫颈病变中表达及相关性。方法采用SP法检测宫颈鳞状细胞癌、宫颈上皮内瘤变(CIN)、尖锐湿疣及正常宫颈组织中p16INK4A、p53、Ki-67及ER蛋白的表达。结果p16INK4A、p53、Ki-67及ER在宫颈鳞癌组中的阳性率分别为100%、86.4%、86.4%及4.6%;在CINⅢ中为92.5%、75.0%、100%、20.0%;在CINⅡ中为90.5%、64.3%、100%及23.9%;在CINⅠ中为71.8%、43.6%、100%、79.5%;在尖锐湿疣组中为39.0%、43.9%、26.9%、61.0%。p16INK4A在宫颈鳞癌、CINⅢ、Ⅱ组中,以强阳性表达为主;尖锐湿疣组仅为弱阳性表达。Ki-67在宫颈鳞癌、CINⅢ组中,以强阳性表达为主。宫颈鳞癌、CINⅢ、Ⅱ、Ⅰ、尖锐湿疣中p16INK4A、p53、Ki-67、ER阳性表达率与对照组比较差异有高度显著性(P<0.05)。结论p16INK4A、p53蛋白高表达与宫颈鳞癌、CIN的发生发展密切相关;p16INK4A、p53、Ki-67阳性率与宫颈病变严重程度呈正相关,ER的阳性率与其呈负相关。 【作者单位】:北京市海淀妇幼保健院病理科;北京大学医学部病理系;北京市海淀妇幼保健院病理科;北京市海淀妇幼保健院病理科;北京市海淀妇幼保健院病理科;北京市海淀妇幼保健院病理科;北京大学医学部病理系;北京大学医学部病理系 【关键词】:宫颈鳞状细胞癌;子宫颈上皮内瘤变;免疫组化;p16INK4A;p53;Ki-67;ER 【分类号】:R711.7 【DOI】:CNKI:SUN:FKLC.0.2007-06-015 【正文快照】: p16INK4A蛋白是细胞周期G1-S期调控点的重要调控者,是抑制肿瘤细胞生长的关键因子。当p16INK4A基因异常不能正常表达p16INK4A蛋白时,cyclinD则与CDK4优势结合,刺激细胞生长分裂,使细胞生长失去控制,细胞表型发生变化[1]。p16INK4A基因失活已在许多肿瘤中被发现。p53基因也是重 | | | | | | 推荐 下载CAJ全文 下载PDF全文 | | | CAJViewer7.0阅读器支持所有CNKI文件格式,AdobeReader仅支持PDF格式 | | | | Study on the correlation and expression of p16~(INK4A)、p53 、Ki-67 and ER in cervical lesions | | | GU Yiqun;GAO Zifen;WANG Yingnan;et al.(Pathology Department of Beijing HaiDian maternal & child health hospital;Beijing 100080;China) | | | Objective This study was aimed to investigate the correlation and expression of P16INK4A, P53, Ki-67 and estrogen(ER) in cervical lesions.Methods SP assay was used to detect the expressions of p16INK4A, p53, Ki-67 and ER in the cervix squamous cell carcinoma, cervical intraepithelial neoplasia(CIN),cervical condyloma acuminatum and normal cervical tissues.Results The expression rates of p16INK4A, p53, Ki-67 and ER were 100%, 86.4%, 86.4% and 4.6%in cervical squamous cell carcinoma,were 92.5%, 75.0%, 100% and 20.0% in CINⅢ, were 90.5%, 64.3%, 100% and 23.9% in CINⅡ, were 71.8%, 43.6%, 100% and 79.5% in CINⅠ, and were 39.0%, 43.9%, 26.9% and 61.0% in cervix condyloma,respectively.Strong staining of p16INK4A was observed mainly in cervical squamous cell carcinoma, CINⅢ and CINⅡ,and only mild staining was detected in cervical condyloma acuminatum. Strong staining of Ki-67 was mainly observed in cervical squamous cell carcinoma and CINⅢ. There were significant differences between cervical lesions ,including squamouscell carcinoma,CINⅢ, CINⅡ,CINⅠ and cervical condyloma, and controls in the expression of p16INK4A、p53 、Ki-67 and ER(P<0.05).Conclusions There were close relationships between the over expression of p16INK4A, p53 proteins and the development of cervicol squamous cell carcinoma and CIN; there were direct correlations between the positive rates of expression p16INK4A, p53 and Ki-67 and the severity of the cervicol lesions, but ER had a inverse correlation with it. 【Keyword】:cervical squamous cell carcinoma;cervical intraepithelial neoplasia;immunohistochemistry;p16INK4A;p53;Ki-67;ER |
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