Clinical investigation of neuron-specific enolase, squamous cell carcinoma-related antigen and carcinoembryonic antigen in carcinoma of the lung

Serum levels of neuron-specific enolase (NSE), squamous cell carcinoma-related antigen (SCC antigen) and carcinoembryonic antigen (CEA) were measured in 53 untreated patients with carcinoma of the lung. The positive rates of serum NSE were 17.0% in all patients with lung cancer, 53.8% in small cell carcinoma, 6.7% in adenocarcinoma, 5.0% in squamous cell carcinoma and 0% in large cell carcinoma; 0% in stage I, 14.3% in stage III and 26.7% in stage IV. The positive rates of serum SCC antigen were 45.3% overall, 70.0% in squamous cell carcinoma, 40.0% in adenocarcinoma, 23.1% in small cell carcinoma and 0% in large cell carcinoma; 42.9% in stage I, 57.1% in stage III and 46.7% in stage IV. In comparison with serum CEA, serum NSE and SCC antigen were much more specific in small cell carcinoma and squamous cell carcinoma, respectively. Moreover, serum levels of NSE and SCC antigen changed in parallel with the clinical course during the treatments. In conclusion, serum NSE and SCC antigen were considered to be very useful markers of lung cancer, especially of small cell carcinoma and squamous cell carcinoma, respectively.     

Creatine kinase BB and neuron specific r-enolase as biomarkers for lung cancer

The serum concentrations of both CK-BB and NSE in patients with various lung carcinoma have been determined by the enzyme immunoassay. Serum CK-BB levels were found to be significantly increased (less than 1.0 ng/ml) in patients with a small cell carcinoma (51 cases, 74.5%), adenocarcinoma (77 cases, 36.5%), and a squamous cell carcinoma (68 cases, 39.7%). The serum NSE levels also were increased (less than 6.0 ng/ml) in cases of small cell carcinoma (72.5%), adenocarcinoma (27.3%), and squamous cell carcinoma (26.5%). Since the serum concentrations of bos CK-BB and NSE changed in parallel with the clinical course, they may be useful biomarkers for monitoring the clinical course of patients with lung cancer, especially in cases of small cell carcinoma.     

Potential utility of serum neuron-specific enolase levels in small cell carcinoma of the lung

To assess the value of neuron-specific enolase (NSE) as a possible biomarker of small cell lung cancer, serum levels were determined by radioimmunoassay in 93 newly diagnosed untreated patients and were compared to the NSE levels of 20 healthy adult controls [9.6 +/- 0.7 (S.E.) ng/ml]. Serum NSE was elevated (greater than 20 ng/ml) in 73% of all patients including 23 of 39 (59%) with limited-stage disease and 45 of 54 (83%) with extensive-stage disease. The mean serum NSE was significantly higher in extensive-stage disease (94.5 +/- 13.8 ng/ml) compared to the mean value for limited-stage disease (33.7 +/- 4.7 ng/ml) (p less than 0.001). NSE was elevated in all patients with three or more sites of metastatic disease. Serial NSE determinations were obtained on 57 small cell lung cancer patients. NSE levels fell in 40 of 50 (80%) of patients responding to treatment, increased in 5 of 7 (71%) of patients with progressive disease, and increased in 30 of 35 (86%) of patients who relapsed. A persistent rise in serum NSE occurred as many as 12 weeks before the clinical recognition of relapse in 15 of 23 (65%) of patients for whom adequate serial NSE data were available. These findings indicate that serum NSE may be a useful marker for staging, monitoring treatment, and predicting relapse in patients with small cell lung cancer.     

Clinical Utility of Haptoglobin in Combination with CEA,NSE and CYFRA21-1 for Diagnosis of Lung Cancer

Purpose: To investigate the clinical value in lung cancer of a combination of four serum tumor markers,haptoglobin (Hp), carcinoembryonic antigen (CEA), neuron specific enolase (NSE) as well as the cytokeratin 19fragment (CYFRA21-1). Materials and Methods: Serum Hp (with immune-turbidimetric method), CEA, NSE,CYFRA21-1 (with chemiluminescence method) level were assessed in 193 patients with lung cancer, 87 patientswith benign lung disease and 150 healthy controls. Differences of expression were compared among groups,and joint effects of these tumor markers for the diagnosis of lung cancer were analyzed. Results: Serum tumormarker levels in patients with lung cancer were obviously higher than those with benign lung disease and normalcontrols (p<0.01). The sensitivities of Hp, CEA, NSE and CYFRA21-1 were 43.5%, 40.9%, 23.3% and 41.5%,with specificities of 90.7%, 99.2%, 97.9% and 97.9%. Four tumor markers combined together could produce apositive detection rate of 85.0%, significantly higher than that of any single test. With squamous carcinomas, thepositive detection rates with Hp and CYFRA21-1 were higher than that of other markers. In the adenocarcinomacase , the positive detection rate of CEA was higher than that of other markers. For small cell carcinomas, thepositive detection rate of NSE was highest. The area under receiver operating characteristic curve (AUCROC) ofHp in squamous carcinoma (0.805) was higher than in adenocarcinoma (0.664) and small cell carcinoma (0.665).Conclusions: Hp can be used as a new serum tumor marker for lung cancer. Combination detection of Hp, CEA,NSE and CYFRA21-1 could significantly improve the sensitivity and specificity in diagnosis of lung cancer, andcould be useful for pathological typing.     

血清CA125、NSE、CT在肺癌诊断和外科治疗预后中的价值

目的　探讨手术前肺癌患者血清中糖链抗原 12 5 (CA12 5 )、神经元特异性烯醇化酶 (NSE)、降钙素 (CT)水平在肺癌诊断及预后中的意义。方法　 92例肺癌患者进入该观察 ,其中Ⅰ期 4例 ,Ⅱ期 2 1例 ,Ⅲ期5 0例 ,Ⅳ期 6例。所有患者均在手术治疗前抽血测定CA12 5、NSE、CT。同期 3 0名健康体检者被选作对照组。结果　CA12 5、NSE、CT对肺癌诊断的敏感度分别为 48.9%、2 1.7%、7.6%。CA12 5在各组肺癌血清中的测定值均显著高于健康体检者 (P <0 .0 5 ) ;NSE仅在小细胞肺癌组中高于健康体检者 (P <0 .0 1) ;CT在各组中与健康体检者无显著性差异。CA12 5正常组的术后 3年生存率为 66.0 % ( 3 1/4 7) ,CA12 5升高组为44 .4% ( 2 0 /4 5 ) ,两者有显著性差异 (P <0 .0 5 )。血清NSE、CT升高组的术后 3年生存率分别为 45 .0 % ( 9/2 0 )、42 .8% ( 3 /7) ,血清NSE、CT正常组分别为 5 8.3 % ( 4 2 /72 )、5 6.5 % ( 4 8/85 ) ,二者相比无显著性差异 (P >0 .0 5 )。结论　CA12 5、NSE、CT对肺癌的诊断价值有限 ;术前CA12 5对手术治疗的肺癌患者有预后意义     

Serum NSE (neuron-specific enolase) levels in small cell lung cancer, with special reference to the measurement of serial serum NSE levels

Serum neuron-specific enolase (NSE) was measured in 105 patients with lung cancer without prior therapy. Increasing serum levels of NSE were observed in 84% of cases of small cell lung cancer (SCLC). 11% of adenocarcinomas, 18.5% of squamous cell carcinomas and 37.5% of large cell carcinomas. Serum NSE levels changed in parallel with the effect of initial treatment. Although two of 5 patients with SCLC, in whom serial NSE levels were measured after treatment, showed elevation of serum NSE levels before clinical relapse, elevated serum NSE levels were not observed in 3 patients at clinical relapse. These data seem to suggest that measurement of serial NSE is useful for predicting relapse prior to clinical recognition. However, it still remains an important point to carry out clinical general surveillance for relapse.     

Serum neuron-specific enolase (NSE) in patients with small cell lung cancer--comparison with carcinoembryonic antigen (CEA)

Serum neuron-specific enolase (NSE) was determined by RIA in 102 lung cancer patients. Serum NSE was elevated (greater than 10 ng/ml) in 72% (21 of 29 cases) of small cell lung cancer (SCLC) patients, which was a significantly higher positive rate than those in normal adult controls (0%, 0/48), noncancerous lung disease (17%, 4/24), squamous cell carcinoma (19%, 6/31) and adenocarcinoma (16%, 4/25) (p less than 0.05, respectively). There were no NSE-positive cases in stage I-II lung cancer patients. In SCLC, cases of extensive disease had a significantly higher NSE-positive rate (100%, 8/8) than those of limited disease (62%, 13/21) (p less than 0.05), suggesting that NSE levels were related to the bulk of the tumor. There was an excellent correlation between serum NSE and clinical response. Raised NSE levels were identified significantly more frequently than those of CEA in SCLC before chemotherapy and on relapse (or progression) (p less than 0.025, p less than 0.005, respectively). Thus, serum NSE determinations may be more useful than those of CEA for the staging and monitoring of SCLC.     

血清肿瘤标志物在肺癌诊断中的应用价值*

目的:探讨SCC 、NSE、CEA 、CYFRA21-1 四项肿瘤标志物联合检测对肺癌的诊断价值。方法:采用化学发光法对肺癌组132 例、肺良性疾病组48例和正常对照组92例的血清SCC 、NSE 、CEA 、CYFRA21-1 四项肿瘤标志物进行检测及统计学分析。结果:NSE 、CEA 、CYFRA21-1 在肺癌组显著高于肺良性疾病组和正常对照组,SCC 肺癌组高于正常对照组,CEA 和CYFRA21-1肺良性疾病组显著高于正常对照组。CEA 在肺腺癌中的水平较高,NSE 在小细胞肺癌中的水平较高,而SCC 、CYFRA21-1 在肺鳞癌中的水平较高。单项肿瘤标志物在肺癌诊断中敏感性:NSE>CEA>CYFRA 21-1>SCC;在腺癌中CEA 敏感性最高（58.8%）,鳞癌中CYFRA21-1 敏感性最高（71.4%）,小细胞肺癌中NSE 敏感性最高（50.0%）。 NSE 、CEA 、CYFRA21-1 的ROC 曲线下面积分别为0.928 ± 0.034、0.957 ± 0.026、0.964 ± 0.023,显示诊断准确性较高。SCC 曲线下面积虽然大于0.5,但差异无统计学意义。肿瘤标志物联合检测,可以提高诊断试验的敏感性,在肺癌诊断中NSE 、CEA 、CYFRA21-1 组合敏感性最高（75.6%）,特异性也较好（90.7%）;腺癌诊断中SCC 、NSE 、CEA 组合敏感性最高（73.5%）,鳞癌诊断中NSE 、CEA 、CYFRA21-1 组合敏感性最高（75.8%）,小细胞肺癌中SCC 、NSE 、CYFRA21-1 组合敏感性最高（75.0%）。 结论:SCC 、NSE 、CEA 、CYFRA21-1 对肺癌的诊断均有一定意义,不同病理类型各有特点,选择合适的组合有利于对肺癌的鉴别诊断。      

血清肿瘤标志物在肺癌辅助诊断中的应用

目的探讨5种血清肿瘤标志物在肺癌辅助诊断中的应用价值,并选择最理想的血清肿瘤标志物组合。方法应用酶联免疫吸附实验(ELISA)检测170例肺癌患者、50例健康人和60例肺部良性疾病患者血清中神经元特异性烯醇化酶(NSE)、胃泌素释放肽前体(pro GRP)、细胞角蛋白19(CYFRA211)、p53抗体和癌胚抗原(CEA)的水平含量。结果肺癌患者的5种血清肿瘤标志物水平均明显高于健康人组和肺部良性疾病组,差异有统计学意义(P<0.01)。NSE、pro GRP在小细胞肺癌中的水平明显高于其他类型的肺癌(P<0.01),CYFRA211在鳞癌中的水平明显高于其他类型的肺癌(P<0.01)。p53抗体的特异性为100%,NSE、pro GRP对小细胞肺癌检测的敏感性明显高于其他类型的肺癌(P<0.01),CYFRA211对鳞癌检测的敏感性明显高于其他类型的肺癌(P<0.01)。5种血清肿瘤标志物经组合后,敏感性明显高于任一单项肿瘤标志物(P<0.01)。结论5种血清肿瘤标志物对于肺癌的辅助诊断有一定的临床意义。NSE、pro GRP二者可作为联合检测小细胞肺癌的首选标志物,CYFRA211、CEA和p53抗体三者可作为联合检测非小细胞肺癌的首选标志物。p53抗体对肺癌的辅助诊断有很高的特异性,CYFRA211对鳞癌的辅助诊断有一定的作用。     

胸水和血清CEA、CA125、CYFRA21-1、NSE和Pro-GRP联合检测对肺癌的诊断价值

目的:探讨联合检测肺癌胸水和血清中癌胚抗原(CEA)、癌抗原125(CA125)、细胞角蛋白19片段(CYFRA21-1)、神经原特异性烯醇化酶(NSE)和胃泌素释放肽前体(Pro-GRP)5 种肿瘤标志物水平在肺癌临床诊断中的应用价值,以期提高鉴别良恶性胸水的能力。方法:用电化学发光法检测93例肺癌患者和54例肺炎性疾病患者的血清及胸水标本CEA、CA125、CYFRA21-1、NSE和Pro-GRP水平。结果:癌性胸水组中CEA、CA125、CYFRA21-1、NSE和Pro-GRP 5种肿瘤标志物平均水平与炎性胸水组比较,差别均有统计学意义(P<0.05);癌性胸水组中CEA、CYFRA21-1、CA125的含量远远高于炎性胸水组（20~600倍）(P<0.01)。肺癌胸水组中CEA、CA125、CYFRA21-1、NSE和Pro-GRP 5种肿瘤标志物水平与肺癌血清组比较,差别均有统计学意义(P<0.05)。肺癌胸水组中CEA、CYFRA21-1、CA125的含量远远高于肺癌血清组（7~80倍）(P<0.01),相比与正常对照组更是有200倍以上的增高(P<0.01),因此胸水中CEA、CYFRA21-1、CA125百倍左右的升高提示恶性肿瘤的存在。将93例癌性胸水和血清分为腺癌、鳞癌和小细胞癌。腺癌、鳞癌和小细胞癌胸水组中CEA、CA125、CYFRA21-1、NSE和Pro-GRP 5种肿瘤标志物含量明显高于炎性胸水组(P<0.01);腺癌胸水组中CEA含量明显高于鳞癌和小细胞癌(P<0.01);鳞癌胸水组中CYFRA21-1含量明显高于腺癌和小细胞癌(P<0.01);小细胞癌胸水组中NSE和Pro-GRP含量明显高于腺癌和鳞癌(P<0.01)。CA125含量在胸水组中腺癌、鳞癌含量明显高于小细胞癌(P<0.01)。5 种标志物单项及联合检测的灵敏度肺癌胸水组均高于肺癌血清组,肺癌胸水中5项联合检测后灵敏度可达99.11%。结论:肺癌组胸水中CEA、CA125、CYFRA21-1、NSE和Pro-GRP 5种肿瘤标志物联合检测有利于良恶性胸水的鉴别诊断,联合检测可以提高肺癌诊断的灵敏度,当肿瘤标志物显著升高时,CEA可作为肺腺癌的肿瘤标志物;CYFRA21-1可作为肺鳞癌的肿瘤标志物;NSE和Pro-GRP可作为小细胞癌的肿瘤标志物;CA125可作为非小细胞肺癌的肿瘤标志物。     

五种肿瘤标志物联检在小细胞肺癌诊断中的价值

目的:探讨五种肿瘤标志物［癌胚抗原（CEA）、神经元特异性烯醇化酶（NSE）、细胞角蛋白19片段（Cyfra21-1）、胃泌素释放肽前体（ProGRP）、人附睾蛋白4（HE4）］联合检测在不同分期小细胞肺癌诊断中的价值。方法:应用电化学发光法分别检测117例小细胞肺癌患者（Ⅰ期23例、Ⅱ期26例、Ⅲ期39例、Ⅳ期29例）,70例肺部良性疾病患者及120名健康体检者血清中CEA、NSE、Cyfra21-1、ProGRP和HE4水平。结果:小细胞肺癌组五种肿瘤标志物水平均高于健康对照组和肺部良性病变组,差异有统计学意义（P＜0.05）;血清ProGRP浓度随疾病进展而明显升高,其表达水平与临床分期密切相关（P＜0.05）。血清HE4表达水平Ⅱ期高于Ⅰ期,Ⅳ期高于Ⅲ期,差异有统计学意义（P＜0.05）;五种肿瘤标志物联合检测诊断小细胞肺癌的效能最高,各单项指标诊断效能由高到低依次为AUCProGRP 0.91>AUCHE4 0.89>AUCNSE 0.80>AUCCyfra21-1 0.64>AUCCEA 0.60。结论:血清ProGRP是诊断不同分期SCLC良好的肿瘤标志物,在SCLC早期也具有较高的灵敏度和特异度,血清HE4和NSE是较好的补充,多肿瘤标志物联合检测仍是提高诊断效能的最佳选择。     

The changes in serum neuron-specific enolase in patients with small cell lung cancer

Serum neuron-specific enolase (NSE) was measured in 48 newly diagnosed untreated patients with small cell lung cancer (SCLC) by radioimmunoassay. Serum NSE level elevated (greater than or equal to 15 ng/ml) in 50% of all patients. The positive ratio of NSE in patients with extensive disease (64%) was significantly higher than those in the patients with limited disease (30%) (p less than 0.05). The positive ratio of NSE in the patients with one metastatic site was 50%, that with two or more metastatic sites was 100% (p less than 0.05). No significant correlation was found between serum NSE levels and metastatic site as well as between serum NSE levels and response to the chemotherapy. In the patients with extensive disease, survival time was shorter in the patients with positive NSE levels than the patients with normal NSE levels. These findings indicate that serum NSE may be a useful marker for staging, monitoring and prognosis in patients with SCLC.     

血清肿瘤标志物联合检测对肺癌的诊断价值

目的：探讨血清中神经元特异性烯醇化酶（NSE）、细胞角蛋白19片段（CYFRA21-1）和糖类抗原19-9（CA19-9）的水平变化对肺癌的诊断价值。方法：采用化学发光法对125例肺癌患者、80例肺良性疾病患者和80例健康人血清中的NSE、CYFRA21-1和CA19-9含量进行检测及比较。结果：肺癌组的三种血清肿瘤标志物水平均明显高于肺良性疾病患者组和正常对照组,差异均有统计学意义（P〈0.05）,其中NSE在小细胞肺癌中呈高表达,明显高于鳞癌与腺癌（P〈0.01）,CYFRA21-1在鳞癌中水平明显高于腺癌与小细胞肺癌（P〈0.01）,CA19-9在腺癌中水平明显高于其他类型肺癌（P〈0.01）。三种肿瘤标志物联合检测阳性率高达84.8%,高于单项检测。结论：三项肿瘤标志物联合检测可提高肺癌诊断的灵敏度和准确度,同时为肺癌病理分型的鉴别诊断提供依据。     

CEA、NSE、CYFRA21-1联合检测在肺癌诊断中的价值

[目的]了解血清肿瘤标志物癌胚抗原(CEA)、神经元特异性烯醇化酶(NSE)和细胞角蛋白19片段(CYFRA21-1)在肺癌诊断中的应用价值.[方法]应用电化学发光技术测定58例肺癌患者,34例肺良性疾病患者和31例正常对照者血清CEA、NSE、CYFRA21-1水平.[结果]肺癌组CEA、NSE、CYFRA21-1水平明显高于肺良性疾病组和对照组(P<0.01).CEA、NSE、CYFRA21-1对肺癌的敏感度分别为51.7%、56.9%、55.2%.NSE对小细胞肺癌敏感度为82.6%,CYFRA21-1对肺鳞癌敏感度为83.3%.三者联合检测对肺癌敏感度为93.1%.[结论]血清CEA、NSE、CYFRA21-1联合检测对肺癌的诊断及分型有价值.     

Tumor markers in lung cancer]

Carcinoembryonic antigen (CEA), squamous cell carcinoma antigen (SCC), neuron-specific enolase (NSE), cytokeratin 19 fragment (CYFRA), and pro-gastrin-releasing peptide (proGRP) can be used as tumor markers for lung cancer. CEA is sensitive for adenocarcinoma, SCC and CYFRA for squamous cell carcinoma, and NSE and proGRP for small cell carcinoma. A tumor marker is generally used as a marker to monitor the clinical course. Serum levels of pro-GRP, reflect the disease course of patients with small cell lung cancer more accurately than NSE or CEA. Among the patients with clinical N0-1 non-small cell lung cancer high serum CEA levels, adenocarcinoma histology, and large tumor dimension were significant predictors of pathologic N2 disease. CEA played a new role in predicting metastasis to mediastinal lymph nodes A more effective treatment may enhance the value of tumor markers to predict relapse.     

The value of serum Bcl-2 levels in advanced lung cancer patients

Overexpression of the Bcl-2 protein was associated with a favorable prognostic factor for survival in lung cancer patients, especially nonsmall cell lung carcinoma. The present study was conducted to investigate the value of serum Bcl-2 levels in advanced lung cancer patients. Fifty patients with advanced lung carcinoma pathologically verified and 18 healthy controls were investigated. Serum samples were obtained on the first admission before the chemotherapeutic treatment were given. Serum Bcl-2 levels were determined by using anti-Bcl-2 monoclonal coating antibody. The baseline serum Bcl-2 levels were significantly higher in patients with lung cancer than in the control group (p<0.001). Serum Bcl-2 levels were elevated in 48 (96%) advanced lung cancer patients. None of the prognostic parameters analyzed, such as age of patient, gender, histology, stage of disease, erythrocyte sedimentation rate, serum albumin, hemoglobin, CEA, NSE, LDH, performance of patient, weight loss, and response to chemotherapy, was significantly correlated with Bcl-2 serum concentrations. The serum Bcl-2 concentrations were not changed with cisplatin-based cytotoxic chemotherapy regardless of response (p=0.76). No prognostic value of serum Bcl-2 was determined. In conclusion, the results of the present study, which is the first study to determine serum Bcl-2 levels in lung cancer, suggest that decreased apoptosis occurred due to the effect of serum Bcl-2 elevation in lung cancer patients. Serum Bcl-2 level was of diagnostic but not prognostic value in lung cancer patients. However, more studies are needed to define the role of Bcl-2 in the diagnosis and prognosis of lung cancer.     

手术前后非小细胞肺癌血清ABCG2表达水平的变化及临床意义

目的观察非小细胞肺癌患者手术前后血清中ABCG2蛋白表达水平的变化,并探讨其临床意义。方法用ELISA法对60例非小细胞肺癌患者手术前、后及15例健康成人血清中ABCG2表达水平进行检测。结果非小细胞肺癌患者治疗前血清ABCG2表达水平明显高于健康成人组（P〈0.05）,其术后血清ABCG2的水平亦明显低于术前（P〈0.05）,但与健康成人差异无统计学意义（P〉0.05）;患者治疗前血清ABCG2的水平与各种临床病理特征无关,而术后血清ABCG2水平与肺癌临床分期有关。结论 ABCG2有望作为判断非小细胞肺癌疗效及预后的有效指标。     

肺癌患者化疗前后外周血肿瘤标志物水平变化的临床价值

目的 对肺癌患者化疗前后外周血内肿瘤标志物水平改变进行分析.方法 随机选取50例肺癌患者,给予紫杉醇类或联合顺铂方案化疗2个周期,采用放射免疫技术对不同病理类型组化疗前后外周血内肿瘤标志物CEA、NSE、CYFRA 21-1水平进行监测,并结合化疗前后肺部CT影像学变化分析化疗前各病理类型血清肿瘤外周血内肿瘤标志物水平.结果 50例患者经2个周期化疗后,行CT影像学检测评估,肿块PR+ CR者38例,NC+ PD者12例.化疗前,腺癌组血清CEA水平显著高于鳞癌组和小细胞肺癌组;鳞癌组CYFRA 21-1水平显著高于腺癌组和小细胞肺癌;小细胞肺癌组NSE水平显著高于腺癌组和鳞癌组,数据对比差异均具有统计学意义(P＜0.05).腺癌组(CR+ PR)化疗后CEA水平显著低于化疗前;鳞癌组(CR+ PR)化疗后CYFRA 21-1水平显著低于化疗前;小细胞肺癌组(CR+ PR)化疗后NSE水平显著低于化疗前,数据对比差异均具有统计学意义(P＜0.05).结论 通过检测外周血内肿瘤标志物CEA、NSE、CYFRA 21-1水平改变可用于化疗疗效判定,具有简便、经济的特点.     

血清肿瘤标志物检测在肺癌中的临床价值

目的研究肺癌患者血清癌胚抗原(carcinoembryonic antigen,CEA)、神经元特异性烯醇化酶(neuron-spe-cific enolase,NSE)、细胞角蛋白19片段(cytokeratin 19 fragments,CYFRA21-1)水平与肺癌分期、近期疗效的关系。方法5例确诊为肺癌的患者均完成4个周期化疗,化疗前后常规检查血清CEA、NSE、CYFRA21-1,评估其变化。结果 5例患者中血清肿瘤标志物表达阳性者占61.8%,其中小细胞肺癌(SCLC)为69.2%,非小细胞肺癌(NSCLC)为59.5%;血清CEA、NSE、CYFRA21-1表达阳性率:SCLC分别为30.8%、69.2%及7.7%;NSCLC分别为52.4%、14.3%及54.8%。CEA、NSE、CYFRA21-1表达阳性率SCLC广泛期高于局限期,差异有统计学意义(P<0.05);NSCLCⅢB期与Ⅳ期各组间比较,差异有统计学意义(P<0.05)。化疗后血清肿瘤标志物表达水平变化与近期疗效相关。结论血清肿瘤标志物CEA、NSE及CYFRA21-1与肺癌分期、近期疗效有关。肺癌晚期肿瘤标志物表达水平增高,化疗有效率明显下降。     

神经元特异性烯醇化酶联合检测对肺癌诊断的价值分析

目的 探讨神经元特异性烯醇化酶(NSE)、癌胚抗原(CEA)、细胞角蛋白19片段(CYFRA21-1)和胃泌素释放肽前体(ProGRP)检测对肺癌诊断的应用价值.方法 选取2018年1月至2019年12月间辽宁省肿瘤医院收治的120例肺癌患者作为肺癌组,同期选取50例肺部良性疾病患者作为良性组,并将同期常规体检的100...