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P16蛋白与C-erbB-2在胰腺癌组织中表达意义
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- Author:
- No author available
- Journal Title:
- WORLD CHINESE JOURNAL OF DIGESTOLOGY
- Issue:
- 1
- DOI:
- 10.3969/j.issn.1009-3079.2003.01.034
- Key Word:
- No keyword available
Abstract： 目的:分析胰腺癌组织中C-erbB-2、P16蛋白表达的临床意义,探讨诊治胰腺癌的有效方法.方法:40例胰腺癌石蜡包埋标本连续5 μm切片,HE染色确定肿瘤分化程度,应用S-P法进行免疫组化染色,PBS代替一抗做阴性对照.结果:C-erbB-2在胰腺癌组织中的阳性率为47.5%(19/40).在高、中、低分化肿瘤中阳性率分别为38.89%,50.00%和60.00%.经检验无显著性差异(P＞0.05),但各级阳性表达率呈逐渐增高趋势.P16蛋白在胰腺癌组织中的缺失率为55%,在高、中、低分化肿瘤中缺失率分别为27.78%、66.67%和90.00%,经检验有非常显著性差异(P＜0.01).P16蛋白和C-erbB-2蛋白的表达具有负相关性(P＜0.05).结论:检测胰腺癌组织中P16蛋白及C-erbB-2蛋白的表达可作为胰腺癌诊断的分子生物学手段,C-erbB-2蛋白的表达与肿瘤的恶性度有关;P16蛋白的表达可反映胰腺癌的恶性度,且同一肿瘤有多基因表达.
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