FHIT基因蛋白的表达与肝癌的临床关系

目的　探讨脆性组氨酸三联体 (FHIT)基因蛋白在原发性肝细胞癌 (简称肝癌 )中表达的临床意义。方法　采用免疫组织化学S -P法检测FHIT基因蛋白在 46例肝癌组织及癌旁组织和 10例正常肝组织中的表达。结果　FHIT基因蛋白在正常肝组织及癌旁组织均为阳性表达 ,显著高于在肝癌中的阳性表达率 5 6.5 2 %。FHIT基因蛋白的丢失与肿瘤是否有门静脉癌栓、肿瘤组织分化程度明显相关 (P <0 .0 5 ) ,与肿瘤大小、有无包膜、甲胎蛋白是否阳性、是否感染乙型肝炎病毒、是否合并肝硬化等因素均无明显的相关性。结论　FHIT基因蛋白缺失在肝癌组织中是频发事件 ,且FHIT基因蛋白的缺失和肝癌的临床表现及预后有一定的关联。

The expression of fragile histidine triad in primary hepatocellular carcinoma

Objective To investigate the clinical significance of the expression of fragile histidine triad (FHIT) protein in primary hepatocellular carcinoma (HCC).Methods Immunohistochemical (S-P) method was used to detect the expression of FHIT in the 46 patients with HCC and 10 normal controls.Results In the patients with HCC,the expression rate of FHIT in the tumor tissue was 56.52%,significantly lowerthan that in adjacent non-tumor tissue and normal tissue.The absence of FHIT protein was correlated neither with the size,tumor capsule,serum AFP level nor with chronic hepatitis B virus infection and cirrhosis of liver.There was significant relationship between the expression of FHIT and differentiation and thrombus in the portal vein.Conclusion The loss of FHIT gene protein is a frequent event in HCC.Furthermore,the loss is closoly related to tumor prognosis prognosis and FHIT loss.