肝细胞癌脆性组氨酸三联体Fhit蛋白表达丢失研究

来源 :中华肝胆外科杂志 | 被引量 : 0次 | 上传用户:xjtcfx
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目的 探讨肝细胞癌中FHIT基因蛋白(Fhit)表达状况及其与临床病理指标的可能关系.方法采用兔抗人Fhit蛋白抗体和枸橼酸-微波-SP免疫组化方法检测83例福尔马林固定、石蜡包埋的肝细胞癌蜡块标本中Fhit表达状况并分析其与组织学分级、临床分期以及肿瘤大小的关系.结果 83例肝细胞癌组织Fhit表达较正常肝组织明显降低或缺失者为50例(65.2%),与正常肝组织相等者为33例(34.8%).Fhit蛋白低表达癌在癌组织学分级中的分布为Ⅰ级癌46.7% (7/15),Ⅱ级癌53.8%(21/39),Ⅲ级癌75.9%(22/29),各级癌组间比较,相差无显著性(P>0.05).Fhit蛋白低表达癌在临床分期中的分布为Ⅰ~Ⅱ期癌21.6%(8/37),Ⅲ~Ⅳ期癌91.3%(42/46),二组比较,有非常显著性差异(P<0.01).Fhit蛋白低表达癌在非小肝癌(>50 mm)和(≥30 mm)病例组中的分布分别为75.0%(33/44)和64.9%(46/71),而在≤50 mm组和<30 mm(小肝癌)组中则为43.6%(17/39)和33.3%(4/12),组间比较,均有显著性差异(P均<0.05).结论肝细胞癌Fhit表达状况可能与临床分期以及肿瘤大小相关,提示Fhit表达降低可能对肝细胞癌的演化和进展具有重要作用并可能成为一个新的预后指标。

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