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早期胃癌p27^(kip1)、p53和cyclin D1的基因表达与临床病理相关性研究

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摘要 目的探讨p27kip1、p53、cyclinD1基因的表达在早期胃癌发生发展中的意义。方法用免疫组化法(SLAB)检测70例早期胃癌和70例对照组(包括正常胃黏膜、胃增生性息肉、胃轻度、中度、重度不典型增生上皮)中p27kip1、p53和cyclinD1的表达。结果(1)在70例早期胃癌中,p27kip1、p53、cyclinD1的阳性表达率分别为38.6%、61.4%、52.9%,而在70例对照组中,阳性表达率分别为60.0%、18.6%、4.3%,各指标在两组的表达差异均有显著性(P<0.001);(2)在早期胃癌中,p27kip1表达水平的下降与肿瘤位于贲门部和胃窦部以及与组织分化程度低相关;(3)p53的表达阳性多见于患者年龄≤50岁组和肿瘤<30mm组;(4)cyclinD1与肿瘤的浸润至黏膜下层有关。(5)50%病例两种及两种以上基因同时异常表达明显高于单基因异常表达(32.9%)。结论在早期胃癌的发生过程中p53、p27kip1、cyclinD1均发生异常表达,三种基因的联合检测对早期胃癌的诊断和治疗具有一定的指导意义。
出处 《实用肿瘤杂志》 CAS 2005年第4期335-338,共4页 Journal of Practical Oncology
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