Hepatocellular carcinoma(HCC) is one of the most common tumors worldwide. The survival rate after the onset of symptoms is generally less than one year for the late presentation of HCC, and reliable tools for early di...Hepatocellular carcinoma(HCC) is one of the most common tumors worldwide. The survival rate after the onset of symptoms is generally less than one year for the late presentation of HCC, and reliable tools for early diagnosis are lacking. Therefore, novel biomarkers for the early detection of HCC are urgently required. Recent studies show that the abnormal release of proteins by tumor cells can elicit humoral immune responses to self-antigens called tumor-associated antigens(TAAs). The corresponding autoantibodies can be detected before the clinical diagnosis of cancer. Therefore, there is growing interest in using serum autoantibodies as cancer biomarkers. In this review, we focus on the advances in research on autoantibodies against TAAs as serum biomarker for detection of HCC, the mechanism of the production of TAAs, and the association of autoantibodies with patients' clinical characteristics.展开更多
目的:探讨血清学检测指标在鉴别原发性与转移性肝癌时的临床应用价值。方法:分别测定125例原发性肝癌患者组,135例转移性肝癌患者组及135例无肝转移的癌症患者组血清中ALT、AST、ALP、TBIL、DBIL、GGT、CHE、5'-NT、AFP、CEA、CA19...目的:探讨血清学检测指标在鉴别原发性与转移性肝癌时的临床应用价值。方法:分别测定125例原发性肝癌患者组,135例转移性肝癌患者组及135例无肝转移的癌症患者组血清中ALT、AST、ALP、TBIL、DBIL、GGT、CHE、5'-NT、AFP、CEA、CA199的水平,采用方差析和Scheffe检验进行统计学分析。应用ROC曲线分析AFP、CEA和CA199对原发性肝癌及转移性肝癌的诊断价值。结果:1)原发性肝癌组与转移性肝癌组之间血清AST、ALP、GGT、5'-NT、AFP及CEA水平差异有统计学意义(P<0.05)。2)根据原发性肝癌组和转移性肝癌组AFP、CEA和CA199的ROC曲线下面积(Area under the ROC curve,AUC)判断,AFP对原发性肝癌诊断有一定的准确性,CEA、CA199对鉴别原发性肝癌与转移性肝癌有一定诊断价值。结论:检测血清AST、GGT、5'-NT、AFP、CEA、CA199水平可对恶性肿瘤是否发生肝转移进行初步诊断,亦可对原发性肝癌与转移性肝癌的鉴别诊断提供佐证。展开更多
文摘目的探讨全自动ELISA系统检测HBs Ag、HBs Ab、HBe Ag、HBe Ab、Hbc Ab(HBV-M)是否在重复性、准确度等方面优于手工法和半自动法,为其更好地在临床实验室开展工作提供进一步的数据和基础。方法用以上各项指标的弱阳性质控品,分别做手工法、半自动法和全自动法的批内和批间重复性试验。另用三种方法分别检测临床血清标本,每项810人份。定性结果不完全一致的标本,HBs Ag用中和法做确证试验,其余四项用化学发光法作为参考方法进行验证。结果批内与批间重复性比较,全自动法的CV小于手工法和半自动法。三种方法检测临床标本,定性结果两两比较,均显示一致性非常好(k>0.8,P<0.05);进行卡方检验,除HBc Ab的半自动法阳性率显著高于全自动法(P<0.0125)外,其余项目三种方法两两比较,均无显著性差异(P>0.0125)。经过确证/参考试验验证,全自动法、半自动法、及手工法不完全一致的标本,HBs Ag17份,符合个数分别为15、9和4;HBs Ab 24份,符合个数分别为17、13、7;HBe Ag 9份,符合个数分别为7、2、5;HBe Ab 34份,符合个数分别为19、16、19;HBc Ab 36份,符合个数分别为28、15、19。结论 1全自动法比半自动法和手工法具有更好的重复性。2三种方法有非常好的一致性,均能较好的诊断乙型肝炎。3全自动法ELISA检测HBV-M比半自动法和手工法准确度更高,可进一步提高这些项目的检验质量。
基金A grant from the National Natural Science Foundation of China,No.81071973A grant from the Scientific Research Foundation for Returned Overseas Chinese Scholars,Bureau of Human Resources and Social Security of Beijing,China(Key project,2010)
文摘Hepatocellular carcinoma(HCC) is one of the most common tumors worldwide. The survival rate after the onset of symptoms is generally less than one year for the late presentation of HCC, and reliable tools for early diagnosis are lacking. Therefore, novel biomarkers for the early detection of HCC are urgently required. Recent studies show that the abnormal release of proteins by tumor cells can elicit humoral immune responses to self-antigens called tumor-associated antigens(TAAs). The corresponding autoantibodies can be detected before the clinical diagnosis of cancer. Therefore, there is growing interest in using serum autoantibodies as cancer biomarkers. In this review, we focus on the advances in research on autoantibodies against TAAs as serum biomarker for detection of HCC, the mechanism of the production of TAAs, and the association of autoantibodies with patients' clinical characteristics.
文摘目的:探讨血清学检测指标在鉴别原发性与转移性肝癌时的临床应用价值。方法:分别测定125例原发性肝癌患者组,135例转移性肝癌患者组及135例无肝转移的癌症患者组血清中ALT、AST、ALP、TBIL、DBIL、GGT、CHE、5'-NT、AFP、CEA、CA199的水平,采用方差析和Scheffe检验进行统计学分析。应用ROC曲线分析AFP、CEA和CA199对原发性肝癌及转移性肝癌的诊断价值。结果:1)原发性肝癌组与转移性肝癌组之间血清AST、ALP、GGT、5'-NT、AFP及CEA水平差异有统计学意义(P<0.05)。2)根据原发性肝癌组和转移性肝癌组AFP、CEA和CA199的ROC曲线下面积(Area under the ROC curve,AUC)判断,AFP对原发性肝癌诊断有一定的准确性,CEA、CA199对鉴别原发性肝癌与转移性肝癌有一定诊断价值。结论:检测血清AST、GGT、5'-NT、AFP、CEA、CA199水平可对恶性肿瘤是否发生肝转移进行初步诊断,亦可对原发性肝癌与转移性肝癌的鉴别诊断提供佐证。
