肺鳞癌患者血清CYFRA21-1和SCC检测及ROC曲线和截断点的理论分析

目的:探讨血清细胞角蛋白19片段(CYFRA21-1)抗原和鳞癌抗原(SCC)对肺鳞癌的临床意义.方法:将研究对象分组,试验组为102例肺鳞癌患者,对照组为53例良性肺病患者.分别采用电化学发光法和酶联免疫法检测血清CYFRA21-1及SCC,测定值用t检验,率比较用x2检验.接受者工作特征(ROC)曲线及截断点选择理论评估CYFRA21-1及SCC的临床价值.结果:肺鳞癌组与良性肺病组CYFRA21-1和SCC水平差异有统计学意义;CYFRA21-1以3.3 ng/mL、SCC以1.5 ng/mL为诊断临界点,CYFRA21-1诊断肺鳞癌敏感性为57.84％,特异性为92.45％,准确性为69.68％,ROC曲线下面积为0.788;SCC诊断肺鳞癌敏感性为33.33％,特异性为92.45％,准确性为53.55％,ROC曲线下面积为0.691;CYFRA21-1诊断肺鳞癌最佳截断点为2.485或2.365 ng/mL,对应敏感性和特异性分别为65.7％、92.5％和67.6％、90.6％;SCC诊断肺鳞癌最佳截断点为0.55 ng/mL,对应敏感性和特异性分别为72.5％和62.3％.随肺鳞癌分期增高,CYFRA21-1和SCC浓度增高差异有统计学意义,CYFRA21-1敏感性增高差异有统计学意义,SCC敏感性无明显变化.结论:CYFRA21-1对肺鳞癌的诊断具有较高的临床价值,而SCC对肺鳞癌的诊断价值较低.     

Measurement of cytokeratin 19 fragments as a marker of lung cancer by CYFRA 21-1 enzyme immunoassay.

Soluble cytokeratin fragment 19 levels were measured with an enzyme immunoassay method developed by Boehringer Mannheim (Enzymun-Test CYFRA 21-1) in the serum of 185 patients with lung cancer [149 with non-small-cell lung cancer (NSCLC) and 36 with small-cell lung cancer (SCLC)] and 97 patients with benign lung diseases in order to determine its clinical usefulness in the diagnosis of lung cancer and follow-up of treatment. We used the cut-off value of 3.5 ng ml-1, established by the Japan CYFRA research group. This cut-off value is based on calculations using the receiver operating characteristic approach instead of using the 95% specificity approach recommended by other authors. The resulting sensitivity and specificity for the group of all lung cancer patients were 65.4% and 84.5% respectively. The sensitivity was highest (76.1%) for squamous cell carcinoma and lowest (44.4%) for SCLC. For NSCLC patients, when CYFRA 21-1 levels were analysed by node (N) factor, patients who presented with mediastinal lymph node metastasis (N2 or N3) demonstrated higher serum CYFRA 21-1 levels (5.6; interquartile range 3.2-11.5 ng ml-1) than patients without mediastinal node metastasis (N0 or N1, 3.9; interquartile range 2.2-10.0 ng ml-1; Mann-Whitney U-test, P = 0.0373). We compared the discriminatory power of CYFRA 21-1 with that of other tumour markers including carcinoembryonic antigen (CEA), squamous cell carcinoma antigen (SCC) and neuron-specific enolase (NSE). The area under the curve (AUC) of each ROC curve was calculated using the CLABROC program for statistical analysis. CYFRA 21-1 appeared to have the most discriminatory power of the markers tested in the diagnosis of lung cancer. In serial measurements of 14 patients receiving chemotherapy or radiotherapy, a high degree of correlation was noted between serum levels of CYFRA 21-1 and extent of clinical response (Wilcoxon, P = 0.0093).     

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.     

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.     

Clinical evaluation of seven tumour markers in lung cancer diagnosis: can any combination improve the results?

In this study we compared the diagnostic utility of: (1) neuron-specific enolase (NSE); (2) squamous cell carcinoma antigen (SCC); (3) carcinoembryonic antigen (CEA); and (4) cytokeratin markers (CYFRA 21-1, TPA, TPM, TPS) in patients with small-cell lung cancer (SCLC) (21 cases) and non-small-cell lung cancer (94 cases). For comparison we also studied 66 patients with benign lung diseases and nine with pleural mesothelioma. NSE levels in SCLC patients were significantly higher than those in all the other groups studied. No significant variations were found among the SCC levels in all groups. CEA levels in patients with adenocarcinoma were significantly higher than those in all other groups studied. CYFRA 21-1 serum levels significantly increased in patients with squamous cell carcinoma and mesothelioma, while TPA, TPS and TPM increased in patients with lung cancer irrespective of the histological type. In patients with SCLC, high levels of all markers except SCC were found when the disease was extensive. In patients with non-SCLC, the highest levels of all tumour markers were usually found in those with advanced disease, although CYFRA 21-1 gave a sensitivity of 44% when a specificity of 95% was fixed in stage I non-SCLC patients. An analysis of receiver operating characteristic curves revealed that the highest diagnostic accuracies in distinguishing benign from malignant lung diseases were achieved with TPM (81%), CYFRA 21-1 (72%), CEA (78%) or TPA (78%) when using cut-off values of 46 Ul-1, 3.0 micrograms l-1, 2.0 micrograms l-1 and 75 Ul-1 respectively. When all patients were considered, the combined evaluation of more than one marker did not significantly improve the results obtained with TPM alone. However, taking into consideration the fact that CYFRA 21-1 is the most sensitive index of early lung tumours and that its combined determination with TPM did not worsen the overall sensitivity and specificity of the latter, the combined use of these two markers may be suggested as a useful took for the diagnosis of lung tumours.     

比较研究TPS、CEA、CYFRA21-1和STNFR四种肿瘤活性标志物在肺癌中的诊断价值

背景与目的近年来,肿瘤标志物的研究不断取得新的进展。其中,组织多肽特异性抗原(TPS)、细胞角蛋白19片段(CYFRA21-1)和可溶性肿瘤坏死因子受体(STNFR)是近几年逐步应用于临床的新的肿瘤标志物。本研究旨在比较四种肿瘤标志物TPS、癌胚抗原(CEA)、CYFRA21-1和STNFR对肺癌的临床诊断价值。方法用ELISA法对72例肺癌患者的血清TPS、CEA、CYFRA21-1和STNFR水平进行检测,并与54例肺部良性疾病患者及32例正常健康人比较。结果四种肿瘤标志物在肺癌组的水平均明显高于良性疾病组(P<0.005)和正常对照组(P<0.001)。在对肺癌的诊断中,相对而言,STNFR的敏感性(81.9%)最高,CYFRA21-1的特异性(91.5%)最高,TPS的诊断符合率(83.5%)最高。结论TPS、CYFRA21-1和STNFR均是用于肺癌诊断的较好的肿瘤标志物,优于传统标志物CEA,其中又以CYFRA21-1的综合临床应用价值最好。     

CYFRA21-1、CA19-9和SCCAg检测在食管癌诊断中的价值研究

目的 探讨血清细胞角质蛋白19片段CYFRA21-1、糖类抗原19-9(CA19-9)、鳞状细胞癌抗原(SC-CAg)单独及联合检测在食管癌诊断中的价值.方法 选取100例食管癌患者(观察组)和50例健康志愿者(对照组),检测两组受试者的血清CYFRA21-1、CA19-9和SCCAg水平,并按照临床分期对观察组患者进行亚组分析,采用受试者工作曲线(ROC)分析CYFRA21-1、CA19-9和SCCAg检测在食管癌诊断中的价值.结果 观察组患者的血清CYFRA21-1、CA19-9和SCCAg水平均明显高于对照组,Ⅰ~Ⅱ期患者的血清CYFRA21-1、CA19-9和SCCAg水平均明显低于Ⅲ~Ⅳ期,差异均有统计学意义(P﹤0.01);血清CYFRA21-1、CA19-9、SCCAg三者联合检测诊断食管癌的灵敏度为82.26%,特异度为91.33%,阳性预测值为86.14%,阴性预测值为89.57%,AUC值为0.864,均高于其中任一项指标单独检测,差异均有统计学意义(P﹤0.05).结论 血清CYFRA21-1、CA19-9、SC-CAg三者联合检测可以提高食管癌诊断的灵敏度和特异度.     

血清五种肿瘤标志物联合检测在肺癌诊断中的意义

目的 联合检测CEA、CA-125、CYFRA21-1、NSE和SCC等5种血清肿瘤标志物水平,探讨其在肺癌临床诊断中的意义。方法 采集112例肺癌患者血清样本,其中48例肺腺癌,33例肺鳞状细胞癌和31例小细胞肺癌;同时采集32例良性患者血清样本为对照组,所有诊断均有组织学证实。用电化学发光法检测血清的CEA、CA-125、CYFRA21-1、NSE水平,用微粒子酶联免疫发光法检测SCC水平。计算灵敏度、特异度和阳性预测值。结果 血清CEA、CA-125、CYFRA21-1、NSE和SCC单项检测的灵敏度为54.46%、67.86%、39.29%、38.39%和28.57%,特异度为93.75%、96.88%、93.75%、87.50%和96.88%。血清五项肿瘤标志物联合检测阳性预测值为92.17%,联合检测灵敏度和特异度分别为94.64%和71.87%。结论 血清CEA、CA-125、CYFRA21-1、NSE和SCC水平联合检测对于肺癌的诊断有临床价值,且联合检测可以提高肺癌诊断的敏感性,提高肺癌的检出率。     

Serum level of cytokeratin 19 fragment (CYFRA 21-1) indicates tumour stage and prognosis of squamous cell carcinoma of the oesophagus

To determine the clinical efficacy of serum concentration of cytokeratin 19 fragment (CYFRA 21-1), sera from 66 patients with oesophageal squamous cell carcinoma were examined, and 54 surgically resected specimens were immunohistochemically stained for cytokeratin 19 (CK-19). The patients with positive CK-19 staining in the tissues of their carcinomas had significantly higher serum CYFRA 21-1 levels compared with those with negative CK-19 staining. When the cut-off value was defined as 2.0 ng/mL, CYFRA 21-1 had a higher positive ratio than that of either squamous cell carcinoma antigen (SCC-Ag) or carcinoembryonic antigen (CEA). Serum CYFRA 21-1 level increased significantly along with the clinical stages. In addition, serum CYFRA 21-1 level served as a prognostic factor for patients with oesophageal carcinoma after surgery, whilst SSC-Ag and CEA is not connected with the outcome. These findings suggest that the serum CYFRA 21-1 probably originated from the tumour tissue is an important marker for determining the stage and outcome of oesophageal carcinoma.     

六种肿瘤标志物在肺癌胸腔积液中的诊断价值

目的通过对胸腔积液和血清中6种肿瘤标志物的检测及胸腔积液脱落细胞学检查,探讨各指标在肺癌胸腔积液中的诊断价值。方法应用化学发光法和酶联免疫分析法测定50例肺癌和30例肺良性疾病患者的胸腔积液和血清中的癌胚抗原（CEA）、糖类抗原19—9（CA19—9）、鳞状细胞癌抗原（SCC）、神经元特异性烯醇化酶（NSE）、细胞角蛋白19片段（CYFRA21—1）、胃泌素前体释放肽（ProGRP）水平,同时对胸腔积液标本进行脱落细胞学检查,并根据受试者工作特性曲线（ROC）建立合理的临床判断临界值。结果肺癌患者胸腔积液中6种肿瘤标志物水平均高于肺良性疾病者,其中CEA、CA19-9、CYFRA21—1、ProGRP水平显著高于肺良性疾病组（P〈0．05）。胸腔积液CEA、血清CYFRA21—1及CEA含量在胸腔积液与血清中的比值（P／S）在各组中的ROC曲线下面积最大。结论胸腔积液CEA、血清CYFRA21—1及CEA的P／S值在鉴别良、恶性胸腔积液中有一定的辅助诊断价值,胸腔积液CEA的诊断价值最大。     

High levels of cytokeratin 19 fragments but no evidence of cytokeratins 1, 2, 10/11, 14 or filaggrin in the serum of squamous cell lung carcinoma patients.

The CYFRA 21-1 assay detects circulating fragments of cytokeratin 19, which is a sensitive marker for the diagnosis of lung cancers, particularly squamous cell carcinomas and adenocarcinomas. Epidermis-type proteins, such as cytokeratins 1, 2, 10/11 and 14 or filaggrin, are also expressed in squamous cell carcinomas. These could also be pertinent tumor markers, ideally as sensitive as CYFRA 21-1 and more specific for squamous cell lung cancer. To verify this hypothesis, using monoclonal antibodies produced in our laboratory, we developed immunoassays specific for these proteins. After optimization, the immunoassays were evaluated in sera from 91 controls and 138 patients with squamous cell lung cancer and compared to conventional tumor markers (CEA, SCC Ag and CYFRA 21-1). Less than 14% of the sera were above the lower limit of detection of the cytokeratin- and filaggrin-specific immunoassays. Moreover, part of these positive sera were induced by the presence of interfering heterophilic antibodies in sera. Thus, in patients with squamous cell lung cancer, we confirmed the high diagnostic sensitivity of CYFRA 21-1 (55.6%) but were unable to detect significant levels of epidermis-type cytokeratins or filaggrin.     

角蛋白19片段K19-2G2检测在肺癌中的临床意义

[目的]探讨角蛋白19片段K19-2G2检测在肺癌中的临床意义。[方法]应用化学发光免疫分析法和电化学发光法检测345例肺癌、150例肺部良性疾病和500例健康体检者(对照组)血清K19-2G2和CYFRA21-1。[结果]肺癌组患者血清K19-2G2和CYFRA21-1浓度均显著高于肺部良性疾病和对照组(P<0.01);K19-2G2检测对肺癌的灵敏性和特异性分别为61.45%和97.69%均高于CYFRA21-1(P<0.05)。K19-2G2和CYFRA21-1在非小细胞肺癌的血清浓度显著高于小细胞肺癌(P均<0.05)。早期非小细胞肺癌和进展期非小细胞肺癌血清K19-2G2浓度和阳性率相近。[结论]K19-2G2对肺癌尤其是非小细胞肺癌的具有较高的灵敏性和特异性,可能有助于非小细胞肺癌早期诊断。     

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。     

Decline of serum CYFRA21-1 during chemoradiotherapy of NSCLC: a probable predictive factor for tumor response

We investigated the predictive value of decline in the serum levels of tumor markers on tumor response during the chemoradiotherapy (CRT) in patients with non-small cell lung cancer (NSCLC). The serum levels of cytokeratin 19 fragment antigen 21–1 (CYFRA21-1), neurone-specific enolase and carcinoembryonic antigen were measured by enzyme-linked immunosorbent assays, while the tumor responses were assessed according to the World Health Organization response criteria. The relationship between the changes of serum level of tumor markers and the radiologic response were analyzed. The effective rates (CR + PR) in CYFRA21-1 (pretreatment serum level) high and low groups were 45.8% (33/72) and 66.7% (24/36), respectively (p = 0.032). Independent sample t test showed that the relationship between the response of CYFRA21-1 and the radiologic objective response are significantly different (p = 0.008). The best cutoff value of the decline ratio of CYFRA21-1 was established as 18.48% by ROC curve. CYFRA 21–1 responses appeared to be reliable surrogate markers to predict chemoradiotherapy efficacy in patients with NSCLC, an average drop of 18.48% in serum CYFRA21-1 appears to provide the predictive information for the sensitivity of CRT.     

胸水中CYFRA21-1测定的初步报告

 测定了130例胸水标本，其中癌性购水75例，结核性胸膜炎43例，其它良性购水12例。恶性胸水的CYFRA21-1浓度显著高于良性胸水（P＜0．01），其敏感性为61．3%，特异性为87．3%，准确率为72．3%，提示测定胸水CYFRA21－1对恶性胸水的诊断和鉴别诊断具有临床应用价值。     

Renal function and serum concentration of five tumor markers (TATI, SCC, CYFRA 21-1, TPA, and TPS) in patients without evidence of neoplasia

The aim of this study was to evaluate the relationship between renal function and the blood level of some tumor markers that are low molecular weight proteins, that is, tumor-associated trypsin inhibitor (TATI), squamous cells carcinoma antigen (SCC), cytokeratin 19 fragments (CYFRA 21-1), tissue polypeptide antigen (TPA), and M3-specific epitope of tissue polypeptide antigen (TPS). In 41 adult patients without evidence of neoplastic disease, glomerular filtration rate (GFR) and the blood levels of creatinine and of the tumor markers were determined. The decrease in GFR was accompanied by an increase in serum levels of TATI, SCC, CYFRA 21-1, and TPA. The serum level of tumor markers increased particularly when GFR fell below 40 ml/min. On the basis of these results, the renal function must be taken into account for the clinical evaluation of the studied tumor markers.     

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。     

CT影像学特征与肿瘤特异性标志物联合诊断肺癌的价值

目的:探讨CT影像学特征与肿瘤特异性标志物联合诊断肺癌的价值。方法:选取我院于2016年3月至2017年9月收治的老年肺癌患者97例作为观察组;选取我院于2016年3月至2017年9月健康体检者68例作为对照组。老年肺癌患者均采用SIEMENS双源CT（Definition Flash）胸部扫描。取患者血清标本,采用电化学发光法测定血清特异性标志物水平变化,包括癌胚抗原（CEA）、神经元特异烯醇化酶（NSE）、癌抗原19-9（CA19-9）、细胞角蛋白21-1（CYFRA21-1）。结果:观察组血清CEA、NSE、CA19-9和CYFRA21-1含量高于对照组,且有统计学差异（P<0.05）;周围型肺癌组和中央型肺癌组血清CEA、NSE、CA19-9和CYFRA21-1含量变化无统计学差异（P>0.05）;CT扫描与血清肿瘤特异性标志物联合诊断灵敏度和特异度高于CT扫描及血清肿瘤特异性标志物。结论:CT影像学特征与肿瘤特异性标志物联合诊断肺癌的灵敏度和特异度高,值得临床研究。     

组织多肽抗原联合ProGRP、CEA、NSE、SCC、CYFRA21-1在肺癌诊治中的价值

目的 评估组织多肽抗原（TPA）联合ProGRP、CEA、NSE、SCC、CYFRA21-1在肺癌诊断与疗效监测中的应用价值。方法 用化学发光法和电化学发光法检测238例肺癌患者、25例肺部良性疾病患者及65名健康对照者血清中的TPA、ProGRP、NSE、SCC、CYFRA21-1和CEA水平,并对33例肺癌患者进行随访检测。同时用SPSS19.0统计软件及接受器工作性能曲线（ROC）分析,评价肿瘤标志物的临床应用价值。结果 肺癌患者血清TPA水平（中位数为130.45 U/L）明显高于肺部良性疾病患者（中位数为82.21 U/L）和健康对照组（中位数为70.96 U/L）（P=0.000, 0.002）。根据ROC曲线分析,TPA检测肺癌的临界值为130 U/L,敏感度为50%,特异性为88.9%,相比于其他肺癌标志物( ProGRP、NSE、SCC、CYFRA21-1、CEA）,敏感度较高,特异性稍低。肺癌患者血清TPA水平及阳性率随着肿瘤分期的升高而升高（P均<0.05）。TPA水平与疗效也密切相关,临床治疗有效时TPA下降,而病情恶化或出现转移时则升高。各种组合检测中,以六项组合诊断肺癌的敏感度和有效性最高。结论 TPA联合ProGRP、CEA、NSE、SCC、CYFRA21-1测定在肺癌的诊断、疗效及监测复发转移中,具有一定的临床价值。     

Diagnostic values of SCC, CEA, Cyfra21-1 and NSE for lung cancer in patients with suspicious pulmonary masses: a single center analysis

We recruited 805 patients with suspicious pulmonary masses that were identified finally as lung cancer or benign pulmonary masses. The serum levels of four tumor markers, including squamous cell carcinoma antigen (SCC), carcinoembryonic antigen (CEA), cytokeratin 19 fragment antigen 21-1 (Cyfra21-1) and neuron specific enolase (NSE) were tested for every patient. Though receiver operating characteristic (ROC) curves indicated unsatisfactory diagnostic power of those four tumor markers for lung cancer, 37.3% of early-staged lung cancer could be diagnosed just on the combination assays of the four tumor markers, under adjusted cut-off values through our statistical analysis retrospectively.