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P16在子宫颈鳞状上皮内瘤变、子宫颈鳞癌的表达及临床意义 被引量:2

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摘要 目的:检测P 16蛋白在子宫颈鳞状上皮病变的表达情况,探讨其在诊断子宫颈上皮内瘤变及子宫颈鳞癌的意义。方法:采用免疫组织化学技术S-P法,检测16例子宫颈鳞癌、60例子宫颈上皮内瘤变、12例子宫颈鳞状上皮反应性增生及10例正常子宫颈的P 16蛋白表达情况。结果:正常子宫颈鳞状上皮及子宫颈鳞状上皮反应性增生P 16蛋白阳性表达率为0,(0/22)。C INⅠP 16蛋白阳性表达率为57.1%(8/14),均表现为弱阳性表达,表达方式主要为胞浆表达;C INⅡ阳性表达率为83.3%(15/18),主要表现为阳性表达,表达方式为胞核/胞浆共同表达;C INⅢ(原位癌)阳性表达率为100%(28/28),主要表现为强阳性表达,表达方式为胞核/胞浆共同表达,以胞浆表达为明显。P 16蛋白在C IN中总阳性表达率为80.5%(51/60),与对照组(正常子宫颈及鳞状上皮反应性增生组)阳性率为0(0/22)相比,差异有统计学意义(P<0.01)。P 16蛋白在子宫颈鳞癌阳性表达率为100%,均为强阳性表达,表达方式为胞核/胞浆共同表达,并以胞浆表达为明显,P 16蛋白在宫颈鳞癌的表达中,与癌细胞的分化程度无关(P>0.05)。结论:P 16蛋白的阳性表达情况与C IN的分级关系密切,尤其是高度C IN和鳞状细胞癌,可作为一个免疫组织化学标志物,辅助诊断C IN及子宫颈鳞癌。
出处 《实用诊断与治疗杂志》 2006年第1期39-40,共2页 Journal of Practical Diagnosis and Therapy
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