目的探讨血清CA19-9、CA125、CEA、CYFRA21-1、CA15-3和Galectin-3的单项检测和联合检测在胰腺病变鉴别诊断中的作用。方法用雅培ARCHITECT i2000化学发光免疫分析仪分别检测125例胰腺导管腺癌患者和115例胰腺炎患者血清中的CA19-9、CA...目的探讨血清CA19-9、CA125、CEA、CYFRA21-1、CA15-3和Galectin-3的单项检测和联合检测在胰腺病变鉴别诊断中的作用。方法用雅培ARCHITECT i2000化学发光免疫分析仪分别检测125例胰腺导管腺癌患者和115例胰腺炎患者血清中的CA19-9、CA125、CEA、CYFRA21-1、CA15-3和Galectin-3水平。结果经受试者工作特征曲线(receiver operating characteristic curve,ROC)分析,CA19-9的曲线下面积(area under the curve,AUC)最大,为0.856,灵敏度和特异性分别75.2%和92.2%,其次为CA125(AUC=0.706),CEA(AUC=0.689)和CYFRA21-1(AUC=0.672)。而CA15-3(AUC=0.568)和Galectin-3(AUC=0.537)很难鉴别胰腺癌和胰腺炎。CA19-9、CA125和CEA联合检测的AUC为0.910,灵敏度和特异性分别为77.6%和93.9%,均高于CA19-9单项指标。CA125和CYFRA21-1在胰腺癌晚期组的血清水平明显高于早期组(P<0.05),而其他四项指标没有显著差异(P>0.05)。结论血清CA19-9在胰腺病变鉴别诊断中具有重要的价值,而Galectin-3的价值不高,血清CA19-9、CA125和CEA的联合检测可提高CA19-9单项对胰腺癌的诊断效能。CA125和CYFRA21-1和胰腺癌的肿瘤分期相关。展开更多
Breast cancer is the second leading cause of cancerrelated deaths in women worldwide;a prime cancer biomarker to aid in the diagnosis, directed treatment, clinical management, and reoccurrence of this cancer is a MUC1...Breast cancer is the second leading cause of cancerrelated deaths in women worldwide;a prime cancer biomarker to aid in the diagnosis, directed treatment, clinical management, and reoccurrence of this cancer is a MUC1 peptide fragment: cancer antigen 15-3 (CA 15-3). Herein, an immuno-fluorescence assay for CA 15-3 was developed;this ALYGNSA system consists of a protein biolinker (Protein G’) adsorbed onto Poly (methyl methacrylate) (PMMA). The unique interaction of Protein G’ with PMMA, a thermo-plastic polymer has been demonstrated to improve human IgG capture antibody alignment/ orientation and result in greater assay sensitivity. Indeed a previous report (HEALTH 1 325 - 329, 2009) on the shed extracellular domain of HER-2/neu revealed a 10-fold increase in sensitivity of the ALYGSNA assay over a control ELISA assay. Results from this ALYGNSA assay study revealed that a 16-fold increase in detection (≤0.94 U/mL) of CA 15-3 was found in comparison to a commercial control ELISA kit (≤15 U/mL). In conclusion, this enhanced sensitivity of the ALYGNSA assay for CA 15-3, may provide insights into the role/function of this biomarker in normal, as well as, breast cancer and other epithelial cancers.展开更多
文摘目的探讨血清CA19-9、CA125、CEA、CYFRA21-1、CA15-3和Galectin-3的单项检测和联合检测在胰腺病变鉴别诊断中的作用。方法用雅培ARCHITECT i2000化学发光免疫分析仪分别检测125例胰腺导管腺癌患者和115例胰腺炎患者血清中的CA19-9、CA125、CEA、CYFRA21-1、CA15-3和Galectin-3水平。结果经受试者工作特征曲线(receiver operating characteristic curve,ROC)分析,CA19-9的曲线下面积(area under the curve,AUC)最大,为0.856,灵敏度和特异性分别75.2%和92.2%,其次为CA125(AUC=0.706),CEA(AUC=0.689)和CYFRA21-1(AUC=0.672)。而CA15-3(AUC=0.568)和Galectin-3(AUC=0.537)很难鉴别胰腺癌和胰腺炎。CA19-9、CA125和CEA联合检测的AUC为0.910,灵敏度和特异性分别为77.6%和93.9%,均高于CA19-9单项指标。CA125和CYFRA21-1在胰腺癌晚期组的血清水平明显高于早期组(P<0.05),而其他四项指标没有显著差异(P>0.05)。结论血清CA19-9在胰腺病变鉴别诊断中具有重要的价值,而Galectin-3的价值不高,血清CA19-9、CA125和CEA的联合检测可提高CA19-9单项对胰腺癌的诊断效能。CA125和CYFRA21-1和胰腺癌的肿瘤分期相关。
文摘Breast cancer is the second leading cause of cancerrelated deaths in women worldwide;a prime cancer biomarker to aid in the diagnosis, directed treatment, clinical management, and reoccurrence of this cancer is a MUC1 peptide fragment: cancer antigen 15-3 (CA 15-3). Herein, an immuno-fluorescence assay for CA 15-3 was developed;this ALYGNSA system consists of a protein biolinker (Protein G’) adsorbed onto Poly (methyl methacrylate) (PMMA). The unique interaction of Protein G’ with PMMA, a thermo-plastic polymer has been demonstrated to improve human IgG capture antibody alignment/ orientation and result in greater assay sensitivity. Indeed a previous report (HEALTH 1 325 - 329, 2009) on the shed extracellular domain of HER-2/neu revealed a 10-fold increase in sensitivity of the ALYGSNA assay over a control ELISA assay. Results from this ALYGNSA assay study revealed that a 16-fold increase in detection (≤0.94 U/mL) of CA 15-3 was found in comparison to a commercial control ELISA kit (≤15 U/mL). In conclusion, this enhanced sensitivity of the ALYGNSA assay for CA 15-3, may provide insights into the role/function of this biomarker in normal, as well as, breast cancer and other epithelial cancers.
