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《ki67和pcna在胃癌中的表达及其临床诊断价值》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、志2011年2月第28卷第2期JClinInternMed,February2011,Vol,28,No.2·95·论著·Ki67和PCNA在胃癌中的表达及其临床诊断价值苗龙黄晓俊【中图分类号]R735.2【文献标识码]A[DOI]10.3969/j.issn.1001—9057.2011.02.007[摘要]目的分析Ki67和PCNA在慢性胃炎组织、上皮内瘤变组织及癌组织中表达的差异,并评价其临床诊断价值。方法用免疫组织化学方法检测所有标本Ki67及PCNA的表达,其中胃癌27例,慢性胃炎30例,低级别上
2、皮内瘤变32例,高级别上皮内瘤变l9例。结果Ki67与PCNA在慢性胃炎组、低级别上皮内瘤变组、高级别上皮内瘤变组、胃癌组的阳性表达率呈明显递增关系。随着病变加重,强阳性表达显著增多,差异有显著性(P<0.001),随着病变加重,阳性表达范围逐渐增大。结论Ki67和PCNA反映了胃上皮细胞在癌变过程中细胞增殖活性的改变。增殖活性的改变与癌变过程密切相关。检测Ki67和PCNA可作为预测癌变的观察指标。[关键词]Ki67;PCNA;免疫组化;胃癌Theexpressionsandsignificanceofc
3、linicaldiagnosisofK-67andPCNAproteiningastriccancerMIAoLong.HUANGXiaojun.DepartmentofDigestionLanzhouUniversityJiuquanFirstPeopleSHospi—ta1.Jiuquan7350oO.China[Abstract]0bjectiveToinvestigatetheexpressionsofKi67andPCNAproteininchronicgastri—tis.intraepithe
4、lialneoplasiaandcarcinoma,analysisthedifferentexpressionandevaluatesignificanceofclinicaldiagnosis.MethodsImmunohistochemistrywasusedtodetecttheexpressionsofKi67andPCNAinallspecimens.whichencluded27casesofgastriccancer,30casesofchronicgastritis,32casesoflO
5、W—gradeintraepithelialneoplasiaand19casesofhigh—gradeintraepithelialneoplasia.ResultsTheexpres—sionofKi67andPCNAinchronicgastritis,low—gradeintraepithelialneoplasia,high—gradeintraepithelialneoplasiaandgastriccancerweresignificantlyincreased(40%,68.8%,94.7
6、%,100%)respectively.Withthedeteriorationofthedisease.strongexpressionwasinereasedsignificantly(P<0.001)andthepositiverangewasincreasedgradually.ConelusionsTheexpressionsofKi67andPCNAreflectedthepro—liferationchangesofgastricepithelialcellsintheprocessofcan
7、cerration.Iechangeofproliferativeae—tivitywascloselyrelatedwithcarcinogenesis.DetectionofKi67.PCNAcouldheusedtopredictcancerra-tion.Ki67andPCNAwasusedtodeterminecancer.whichshouldnotbeconfinedtothepositiverateandstainingintensity.andshouldbestudiedfurtherf
8、romthelocationandscopetodevelopabettercriteria.KeywordsIKi67;PCNA;Immunohistochemistrydiagnosticcriteriaforgastriccancer胃癌是严重危害人类健康的恶性肿瘤之一。迄今本108例,所有标本均经HE染色明确诊断,其中胃癌为止,无论是从影像学还是从组织细胞形态学上,均无27例,慢性胃炎30例,低级别上皮内
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