血清肿瘤标志物CEA、CA19-9对结直肠癌的诊断价值

目的 分析血清肿瘤标志物CEA、CA19-9单项或联合检测对结直肠癌患者的临床诊断价值,探讨其在病理分期、淋巴结转移等临床特征方面的意义.方法 酶联免疫法检测160例健康人和158例结直肠癌患者术前两天以及术后两周血清中CEA、CA19-9含量.结果 结直肠癌患者2种血清肿瘤标志物含量明显高于健康人(P<0.01),术前与术后2种血清肿瘤标志物水平比较差异有统计学意义(P<0.05).CEA、CA19-9联合检测敏感度和特异度明显高于各单项检测值.在Dukes A、B、C及D期中,2种肿瘤标志物含量及检测阳性率依次增高,淋巴结转移患者的CA19-9含量高于无淋巴结转移患者(P<0.05).结论 肿瘤标志物CEA、CA19-9联合检测可以提高结直肠癌诊断的敏感度和特异度,并对临床分期、判断淋巴结转移、预测预后及监测复发有一定的指导意义.     

CEA和 CA19-9在结直肠癌组织中的表达及临床意义

目的：探讨CEA和CA19-9在结直肠癌中的表达及其与临床病理参数和预后的关系。方法采用免疫组织化学法,检测47例结直肠癌组织中CEA和CA19-9的表达,并分析两者表达与其临床病理参数和预后的关系。结果CEA和CA19-9蛋白在结直肠癌组织中呈高表达。 CEA表达与M分期显著相关,与其他临床参数无相关性。 CA19-9表达与性别、年龄、T期、N期、M期、Duke分期及肿瘤大小无相关性。 CEA和CA19-9蛋白在结直肠癌组织中的表达与其生存期无相关性,但CEA和CA19-9联合检测一定程度上可预测预后。结论 CEA表达与结直肠癌M分期显著相关, CEA和CA19-9联合检测有助于预测结直肠癌患者预后。     

PET-CT在结直肠癌术后CEA、CA19-9升高患者中的应用

 目的　探讨18F-脱氧葡萄糖（18F-FDG）正电子发射式断层CT（PET-CT）显像在结直肠癌术后CEA、CA19-9升高患者的临床应用价值。方法　对87例结直肠癌术后CEA、CA19-9升高患者行全身18F-FDG PET-CT显像,图像采用视觉和半定量分析,所有病例最终确诊依据为再次手术病理结果、多种影像学检查或临床随访证实,将显像结果与临床随访所作出的诊断进行比较。结果　87例结直肠癌术后CEA、CA19-9升高患者,18F-FDG PET-CT诊断肿瘤复发转移的灵敏度为91 %（71／78）,特异度为66.7 %（6／9）,准确度为88.5 %（77／87）。61例患者近期（3个月内）有胸部、腹部和盆腔的传统影像学（B型超声、CT、MRI）检查,其中32例患者18F-FDG PET-CT显像发现了传统影像学未发现的病灶或病灶较传统影像学广泛,临床对其中21例患者的治疗方案进行了修正,修正率为34.4 %（21／61）。结论　18F-FDG PET-CT显像对结直肠癌术后CEA、CA19-9升高患者诊断肿瘤复发、寻找转移病灶及准确判定术后再分期等方面有较大的临床应用价值。     

血清肿瘤标志物CEA、CA19-9和CA72-4在胃癌术后监测中的意义

目的研究血清肿瘤标志物CEA、CA19—9和CA72—4在胃癌术后复发、转移监测中的意义。方法采用电化学发光法检测228例手术后胃癌患者血清CEA、CA19—9和CA72—4含量;并结合临床及随访资料进行分析。结果胃癌术后复发、转移患者CEA、CA19—9和CA72—4的含量和阳性率均显著高于未发生复发、转移患者。术后复发、转移的胃癌患者血清CEA、CA19—9和CA72—4检测灵敏度和特异度分别为46．2％和94．7％,52．3％和97．4％,47．1％和90．6％。结论血清CEA、CA19—9和CA72-4升高与胃癌复发、转移密切相关,在术后随访过程中检测血清肿瘤标志物有助于早期诊断胃癌复发、转移。     

乳腺癌肿瘤标志物CEA、CA15-3表达水平的临床意义

目的:探讨血清CEA、CA15-3与乳腺癌临床诊断方面的关系.方法:应用微粒子免疫萤光技术对210例乳腺癌患者、75例乳腺良性疾病患者及50例正常对照者血清CEA CA15-3表达水平进行检测比较.结果:CEA、CA15-3在乳腺癌Ⅲ、Ⅳ期中表达明显增高(P＜0.005),在Ⅰ、Ⅱ期中表达与正常组及良性疾病组比较无显著性差异(P＞0.05).两种标志物与肿瘤分期、淋巴结受累程度有关,腋淋巴结转移≥4枚或远处脏器转移时CEA、CA15-3浓度明显增高(P＜0.005).两种标志物与肿瘤病理学分型的关系不明显(P＞0.05).乳腺癌术后动态监测CEA、CA15-3对肿瘤远处转移呈高表达(P＜0.005),对局部复发CEA无显著性(P＞0.05),而CA15-3有指导意义(P＜0.005).结论:CEA、CA15-3并非乳腺癌早期诊断的理想标志物,但其与肿瘤临床分期、淋巴结转移程度、远处转移关系密切,是乳腺癌术前预测转移及监测术后复发转移与评估乳癌预后的有效指标.     

大肠癌血清CEA,CA19-9和CA242联合检测及其临床意义

目的评价CEA，CA19-9及CA242联合检测对大肠癌患者的临床诊断价值。方法应用酶联免疫法对150例术前大肠癌患者及其中70例术后患者和200名健康人血清CEA，CA19-9及CA242含量进行测定。结果大肠癌患者血清3项标志物含量明显高于健康人（均P〈0．01）；单项和联合检测的阳性率及特异性总体比较差异均有统计学意义（均P〈0．01）；其中CEA、CA242检测的阳性率显著高于CA19-9；CEA＋CA242与3项联合检测的阳性率均显著高于单项或其他两项联合检测的阳性率；CEA特异性高于CA242；3项联合检测的特异性明显低于单项检测。3个年龄段大肠癌患者CEA血清水平差异显著，年龄越大CEA水平越高（P〈0．05）。在Dukes分期中，3项标志物含量及检测的阳性率依次增高（P〈0．05～0．01）。淋巴结转移患者的3项标志物含量及CA19-9，CA242的阳性率均高于无淋巴结转移的患者。3项标志物含量随肿瘤侵袭程度的增加显著增高，但在组织病理分类和肿瘤大体形态中均差异无统计学意义。Dukes A＋B期大肠癌术后3项标志物含量显著降低（P〈0．01），而C＋D期改变不明显。结论3项标志物的检测有助于大肠癌的临床辅助诊断，联合检测可以提高诊断的阳性率；3项标志物检测对大肠癌临床分期、淋巴结转移及肿瘤侵犯程度评估，尤其CA19-9和CA242比用于术前诊断更有意义，对指导临床医师合理手术有一定的帮助；术后检测有助于观察疗效，评价治疗效果。     

PET-CT在结直肠癌术后CEA、CA19-9升高患者中的应用

目的 探讨18F-脱氧葡萄糖(18F-FDG)正电子发射式断层CT(PET-CT)显像在结直肠癌术后CEA、CA19-9升高患者的临床应用价值.方法 对87例结直肠癌术后CEA、CA19-9升高患者行全身18F-FDG PET-CT显像,图像采用视觉和半定量分析,所有病例最终确诊依据为再次手术病理结果、多种影像学检查或临床随访证实,将显像结果与临床随访所作出的诊断进行比较.结果 87例结直肠癌术后CEA、CA19-9升高患者,18F-FDG PET-CT诊断肿瘤复发转移的灵敏度为91%(71/78),特异度为66.7%(6/9),准确度为88.5%(77/87).61例患者近期(3个月内)有胸部、腹部和盆腔的传统影像学(B型超声、CT、MRI)检查,其中32例患者18F-FDG PET-CT显像发现了传统影像学未发现的病灶或病灶较传统影像学广泛,临床对其中21例患者的治疗方案进行了修正,修正率为34.4%(21/61).结论 18F-FDG PET-CT显像对结直肠癌术后CEA、CA19-9升高患者诊断肿瘤复发、寻找转移病灶及准确判定术后再分期等方面有较大的临床应用价值.     

PET-CT在结直肠癌术后CEA、CA19-9升高患者中的应用

目的 探讨18F-脱氧葡萄糖(18F-FDG)正电子发射式断层CT(PET-CT)显像在结直肠癌术后CEA、CA19-9升高患者的临床应用价值.方法 对87例结直肠癌术后CEA、CA19-9升高患者行全身18F-FDG PET-CT显像,图像采用视觉和半定量分析,所有病例最终确诊依据为再次手术病理结果、多种影像学检查或临床随访证实,将显像结果与临床随访所作出的诊断进行比较.结果 87例结直肠癌术后CEA、CA19-9升高患者,18F-FDG PET-CT诊断肿瘤复发转移的灵敏度为91%(71/78),特异度为66.7%(6/9),准确度为88.5%(77/87).61例患者近期(3个月内)有胸部、腹部和盆腔的传统影像学(B型超声、CT、MRI)检查,其中32例患者18F-FDG PET-CT显像发现了传统影像学未发现的病灶或病灶较传统影像学广泛,临床对其中21例患者的治疗方案进行了修正,修正率为34.4%(21/61).结论 18F-FDG PET-CT显像对结直肠癌术后CEA、CA19-9升高患者诊断肿瘤复发、寻找转移病灶及准确判定术后再分期等方面有较大的临床应用价值.     

大肠癌血清CEA，CA19-9和CA242联合检测及其临床应用

 目的 评价CEA，CA19-9及CA242联合检测对大肠癌患者的临床诊断价值。方法 应用酶联免疫法对术前150例，其中术后70例大肠癌患者和200名健康人血清CEA，CA19-9及CA242含量进行测定。结果 大肠癌患者血清3项标志物含量明显高于健康人（均P＜0.01）；单项和联合检测的阳性率及特异性总体比较差异均有统计学意义（均P＜0.01）；其中CEA、CA242 检测的阳性率显著高于CA19-9， CEA+CA242与3项联合检测的阳性率均显著高于单项或其他两项联合检测的阳性率；CEA特异性高于CA242；3项联合检测的特异性明显低于单项检测。3个年龄段大肠癌患者CEA血清水平差异显著，年龄越大CEA水平越高（P＜0.05）。在Dukes 分期中，3项标志物含量及检测的阳性率依次增高（P＜0.05～0.01）。淋巴结转移患者的3项标志物含量及CA19-9，CA242的阳性率均高于无淋巴结转移的患者。3项标志物含量随肿瘤侵袭程度的加深显著增高，但在组织病理分类和肿瘤大体形态中均无明显的差异。Dukes A+B期大肠癌术后3项标志物含量显著降低（P＜0.01），而C+D期改变不明显。结论 3项标志物的检测有助于大肠癌的临床辅助诊断，联合检测可以提高诊断的阳性率；3项标志物检测对大肠癌临床分期、淋巴结转移及肿瘤侵犯程度评估，尤其CA19-9和CA242比用于术前诊断更有意义，对指导临床医师合理手术有一定的帮助；术后检测有助于观察疗效，评价治疗效果。     

胃肠道恶性肿瘤患者血清AFP、CEA和CA19-9的表达特征探讨

目的:探讨血清肿瘤标志物AFP、CEA和CA19-9在胃肠道恶性肿瘤患者中的表达特征。方法:用罗氏全自动电化学发光分析仪测定126例胃肠道恶性肿瘤患者血清AFP、CEA和CA19-9的表达水平,并分析该3项指标与临床病理因素的关系。结果:血清CEA随着肿瘤浸润深度、临床分期增加以及远处转移而表达水平上升,差异有统计学意义(P0.05);血清CA19-9随着临床分期及远处转移表达水平上升,差异有统计学意义(P0.05)。血清AFP表达水平在不同临床病理因素间无统计学差异(P0.05)。结论:胃肠道恶性肿瘤患者血清CEA、CA19-9的表达水平与胃肠道恶性肿瘤患者的病情密切相关。     

血清VEGF、CA19-9以及OPN水平检测在大肠癌的临床诊断和手术疗效分析中的应用

目的:探讨大肠癌患者手术前后血清VEGF、CA19-9和OPN的含量变化及其临床意义。方法:对50例大肠癌患者VEGF、CA19-9、OPN以及CEA 联合检测判断大肠癌阳性检出率,并测定术前、术后5天和术后10天血清血管内皮生长因子（VEGF）、糖蛋白抗原CA19-9以及骨桥素（OPN）的含量。结果:VEGF、CA19-9和OPN三者联合检测时大肠癌检出率高于单独检测CEA。手术后5天以及手术后10天患者血清中VEGF、CA19-9以及OPN水平与术前相比有明显降低（P＜0.05）。大肠癌TNM I和II期患者血清中三种肿瘤标志物含量明显低于III和IV期患者(P＜0.05);中-低分化（包括未分化）患者血清中VEGF、CA19-9以及OPN水平高于高分化患者,两组比较具有统计学意义（P＜0.05）。结论:血清VEGF、CA19-9和OPN水平可作为大肠癌临床分期、判断预后和恶性程度的依据,可作为大肠癌诊断、分期、预后判断的重要指标,值得临床推广应用。     

血清CEA、CA19-9、CA724检测对老年胃癌病理、临床分期的意义

目的:探讨血清CEA、CA19-9、CA724对老年胃癌的临床应用价值.方法:采用ELISA方法对87例老年胃癌患者进行回顾性分析.结果:老年胃癌患者CEA、CA19-9、CA724阳性率分别为25%、21%、21%,联合检测阳性率为41%,其中TNM Ⅳ期患者CA19-9、CA724、联合检测阳性率明显高于TNM Ⅰ+Ⅱ期患者.TNM Ⅲ+Ⅳ期患者CA19-9、CA724检测值明显高于Ⅰ+Ⅱ期患者.CEA、CA19-9、CA724阳性率、其值大小与胃癌病理类型、分化无关.结论:CEA、CA19-9、CA724可用于老年胃癌的诊断、病情判断,联合检测可提高诊断效率,但早期诊断价值有限.     

Combined Detection of CEA,CA 19-9, CA 242 and CA 50 in the Diagnosis and Prognosis of Resectable Gastric Cancer

Our aim was to investigate the value of combined detection of serum  carcinoembryonic antigen (CEA), carbohydrate antigen (CA) 19-9, CA 242 and CA 50 in diagnosis and assessment of prognosis in consecutive gastric cancer patients. Clinical data including preoperative serum CEA, CA 19-9, CA 242, and CA 50 values and information on clinical pathological factors were collected and analyzed retrospectively. Univariate and multivariate survival analyses were used to explore the relationship between tumor markers and survival. Positive rates of tumor markers CEA, CA 19-9, CA 242 and CA 50 in the diagnosis of gastric cancer were 17.7, 17.1, 20.4 and 13.8%, respectively, and the positive rate for all four markers combined was 36.6%. Patients with elevated preoperative serum concentrations of CEA, CA 19-9, CA 242 and CA 50, had late clinical tumor stageand significantly poorer overall survival. Five-year survival rates in patients with elevated CEA, CA 19-9, CA 242 and CA 50 were 28.1, 25.8, 27.0 and 24.1%, respectively, compared with 55.0, 55.4, 56.4 and 54.5% in patients with these markers at normal levels (p<0.01). In multivariate Cox proportional hazards analyses, an elevated CA 242 level was determined to be an independent prognostic marker in gastric cancer patients. Combined detection of four tumor markers increased the positive rate for gastric cancer diagnosis. CA 242 showed higher diagnostic value and CA 50 showed lower diagnostic value. In resectable gastric carcinoma, preoperative CA 242 level was associated with disease stage, and was found to be a significant independent prognostic marker in gastric cancer patients.     

血清CA125、CA19-9、CEA的检测在大肠癌诊断及治疗中的意义

目的探讨血清CA125、CA199、CEA的检测在大肠癌诊断及治疗中的价值。方法82例大肠癌病人均于2004年6月～2005年6月收治并手术,同时选取41例正常人做为对照组。以蛋白芯片法测定两组血清中CA125、CA199、CEA含量。结果三项指标定量检测大肠癌组明显高于对照组。其阳性率与部位、大体类型、组织类型无明显相关。三项指标阳性率Duke'sC+D期明显高于Duke'sA+B期。CA125、CA199、CEA三项指标敏感度分别为34.1%、34.1%、30.5%,特异度均为97.6%,三项联检敏感度为58.5%,特异度为92.7%,而在Duke'sC+D期,三项联检敏感度为86.8%,特异度为92.7%。结论血清CA125、CA199、CEA的检测对于大肠癌的诊断价值较低,但三项联检在Duke'sC、D期大肠癌病人诊断价值较高,有助于判断大肠癌病理分期并指导手术范围。     

The prognostic significance of preoperative serum CA 19-9 in patients with resectable gastric carcinoma: comparison with CEA

BACKGROUND AND OBJECTIVES: In this study, the prognostic value of pre-operative serum levels of tumor markers CA 19-9 and carcinoembryonic antigen (CEA) in gastric carcinoma which has been a controversial matter was investigated. METHODS: Preoperative serum CA 19-9 (cut-off value 37 U/ml) and CEA (cut-off value 5 ng/ml) levels were measured in 168 patients with resectable gastric carcinoma. The correlation between tumor marker levels and clinicopathological features and overall survival was studied. RESULTS: CA 19-9 and CEA positivity rates were 31.5 and 17.8% respectively. In CA 19-9 positive patients, the ratio of males, tumors exceeding subserosa and advanced stage tumors (stages III and IV) was significantly higher (P = 0.052, P = 0.0005 and P= 0.029, respectively). A weak correlation was found with CA 19-9 positivity and tumor location; however, no correlation existed between CA 19-9 positivity and age, tumor size, histologic type, lymph node, hepatic and peritoneal metastasis. The proportion of tumors extending beyond subserosa and with lymph node metastasis was significantly higher in CEA positive patients (P = 0.011 and P = 0.045, respectively). No correlation was found between CEA positivity and gender, age, tumor location, tumor size, and hepatic and peritoneal metastasis; however, a weak correlation existed between CEA positivity and histologic type and tumor stage. Overall survival was significantly poorer in CA 19-9 and CEA positive patients (log-rank test, P = 0.014, P = 0.003, respectively). However, the Cox proportional hazards regression analysis did not show independent prognostic value for both tumor markers. CONCLUSIONS: In resectable gastric carcinoma, preoperative serum CA 19-9 and CEA levels may indicate stage of the disease, but neither has an independent prognostic value.     

血清CEA、CA19—9、CA724检测对老年胃癌病理、临床分期的意义

目的：探讨血清CEA、CA19—9、CA724对老年胃癌的临床应用价值。方法：采用ELISA方法对87例老年胃癌患者进行回顾性分析。结果：老年胃癌患者CEA、CA19—9、CA724阳性率分别为25％、21％、21％,联合检测阳性率为41％,其中TNMIV期患者CA19—9、CA724、联合检测阳性率明显高于TNMⅠ＋Ⅱ期患者。TNMⅢ＋Ⅳ期患者CA19—9、CA724检测值明显高于Ⅰ＋Ⅱ期患者。CEA、CA19—9、CA724阳性率、其值大小与胃癌病理类型、分化无关。结论：CEA、CA19—9、CA724可用于老年胃癌的诊断、病情判断,联合检测可提高诊断效率,但早期诊断价值有限。     

炎性介质ＣＲＰ和ＳＡＡ与肿瘤标记物ＣＥＡ、ＣＡ１９-９和ＣＡ７２-４术前联合评估结直肠癌

目的：探讨运用炎性介质Ｃ反应蛋白（ＣＲＰ）、血清淀粉样蛋白Ａ（ＳＡＡ）与肿瘤标记物ＣＥＡ、ＣＡ１９-９、ＣＡ７２-４术前联合评估结直肠肿瘤分期的价值。方法：纳入１３０例结直肠癌患者,于术前３天测定血清ＣＥＡ、ＣＡ１９-９、ＣＡ７２-４、ＣＲＰ和ＳＡＡ的水平,并与术后病理分期进行比较。结果：术前ＳＡＡ与ＣＲＰ、ＣＥＡ有相关性,相关系数分别为ｒ＝０.６４７（Ｐ＝０.０００）和ｒ＝０.２９５（Ｐ＝０.００１）;ＣＲＰ（Ｐ＝０.０２１）、ＳＡＡ（Ｐ＝０.０３６）、ＣＡ１９-９（Ｐ＝０.０１７）在不同的ＴＮＭ分期之间差异有统计学意义;建立ＣＲＰ、ＳＡＡ和ＣＡ１９. ９诊断Ⅱ ～Ⅳ期结直肠癌的ＲＯＣ曲线,ＳＡＡ的曲线下面积（ＡＵＣ）为０.６７４（Ｐ＝０００５）,ＣＡ１９.９的ＡＵＣ为０.６６４（Ｐ＝０００８）,ＣＲＰ的ＡＵＣ没有统计学意义;以血清ＳＡＡ值≥２.６６５ｍｇ／Ｌ为阳性,或ＣＡ１９-９值≥８.７０５Ｕ／ｍｌ为阳性联合诊断Ⅱ ～Ⅳ期结直肠癌的准确度为７５.６％,敏感度为８８.３％,特异度为３４.５％。结论：炎性介质和肿瘤标记物具有相关性,联合检测ＳＡＡ和ＣＡ１９-９筛选Ⅱ ～Ⅳ期结直肠癌患者具有较高价值。     

Clinical usefulness of three monoclonal antibody-defined tumor markers: CA 19-9, CA 50, and CA 125

This article reviews the clinical usefulness of three monoclonal antibody-defined tumor markers: CA 19-9 or GICA, CA 50, and CA 125. These markers have been regarded as worthwhile tools for diagnosis and monitoring the management of patients with cancers in selected sites. The CA 19-9 test in combination with the CEA test is a useful adjunct for staging in some advanced cases and for monitoring therapy in the majority of patients with carcinoma of the stomach. Sensitivity of these assays performed concurrently is comparable to CEA alone in colorectal carcinoma. The CA 19-9 test alone is useful for staging and monitoring management of patients with carcinoma of the pancreas. In colorectal carcinoma the CA 19-9 test is redundant because of significantly lower sensitivity than that of the CEA assay; the latter remains the test of choice. The CA 50 test per se is redundant since the CA 19-9 antigen is the target for both the C50 MAb and the NS 19-9 MAb. The CA 125 test contributes to staging and is a useful adjunct for monitoring management of patients with non-mucinous carcinomas of the ovary. If positive after initial surgery and chemotherapy, this test provides evidence of the presence of residual or metastatic tumor and thus may obviate the need for second-look surgery. These conclusions are based on a review of recent relevant publications as well as on our own results obtained from preoperative evaluation and postoperative follow-up of about 600 patients with cancers in relevant sites.