外周血中CEA和CA19-9的表达水平在进展期胃癌中的预后价值

目的 探讨外周血中CEA和CA19-9的表达水平在进展期胃癌中的预后价值及进展期胃癌患者预后的影响因素。方法 选取2010年1月—2010年12月于哈尔滨医科大学附属肿瘤医院胃肠外科行R0根治术的进展期胃癌患者255例,根据CEA和CA19-9的表达水平分为A组(CEA＜2.19ng/mL且CA19-9＜10.78U/mL)、B组(CEA≥2.19ng/mL或CA19-9≥10.78U/mL)和C组(CEA≥2.19ng/mL且CA19-9≥10.78U/mL),比较三组进展期胃癌患者的临床病理资料和生存情况,并分析进展期胃癌患者预后的影响因素。结果 三组进展期胃癌患者间临床N分期、临床TNM分期和病理TNM分期的差异均具有统计学意义(P＜0.05),三组进展期胃癌患者术后中位生存时间差异无统计学意义(P＞0.05);术后1年、3年、5年生存率差异无统计学意义(P＞0.05),但A组1年、3年、5年生存率高于B组和C组。影响胃癌预后的因素包括肿瘤分化程度、病理T分期、病理TNM分期、清扫淋巴结总数、清扫淋巴结阳性数、淋巴结转移情况。结论 CEA和CA19-9联合检测对进展期胃癌患者评估预后有一定的参考价值。     

Prognostic study of preoperative serum levels of CEA and CA 19-9 in colorectal cancer

PURPOSE: Carcinoembrionic Antigen (CEA) and carbohydrate antigen 19-9 (CA 19-9) are the most frequently used tumor markers in the clinical setting of colorectal cancer. The aim of this study is to evaluate the prognostic value of preoperative serum levels of CEA and CA 19-9 in colorectal cancer patients. METHODS: Serum levels of CEA and CA 19-9 were examined in 586 patients with colorectal cancer. Cut-off levels were calculated at reference value:<2.5 ng/mL (group A) versus >2.5 ng/mL (group B) for CEA and, <37 U/mL (group A) versus >37 U/mL (group B) for CA 19-9. RESULTS: According to tumor progression, each marker tended to show a higher level. Group A showed a significantly better prognosis than group B in both CEA and CA 19-9. In Dukes classification A, B and C, only CEA showed a better prognosis in group A than group B. At the time of recurrence compared to the pre-operative point, the CEA and CA 19-9 levels were significantly higher in both group A and B, however. In relation to the necessity of adjuvant chemotherapy (5-FU containing regimen) in Dukes A, the cases without adjuvant chemotherapy in group B of CEA showed a poor prognosis. CONCLUSION: The measurement of preoperative serum CEA and CA 19-9 is useful for prognostic prediction in colorectal cancer. Cut-off levels calculated at the reference value reflect the prognosis in this study. Especially, preoperative CEA reveals a potential high risk group in Dukes A which should be carefully treated by adjuvant chemotherapy to avoid recurrence.     

Value of Combined Detection of Serum CEA,CA72-4, CA19-9 and TSGF in the Diagnosis of Gastric Cancer

Background: To explore whether combined detection of serum tumor markers (CEA, CA72-4, CA19-9 andTSGF) improve the sensitivity and accuracy in the diagnosis of gastric cancer (GC). Materials and Methods: Anautomatic chemiluminescence immune analyzer with matched kits were used to determine the levels of serumCEA, CA72-4, CA19-9 and TSGF in 45 patients with gastric cancer (GC group), 40 patients with gastric benigndiseases (GBD group) hospitalized in the same period and 30 healthy people undergoing a physical examination.The values of those 4 tumor markers in the diagnosis of gastric cancer was analyzed. Results: The levels ofserum CEA, CA72-4, CA19-9 and TSGF of the GC group were higher than those of the GBD group and healthyexamined people and the differences were significant (P<0.001). The area under receiver operating characteristic(ROC) curves for single detection of CEA, CA72-4, CA19-9 and TSGF in the diagnosis of GC was 0.833, 0.805,0.810 and 0.839, respectively. The optimal cutoff values for these 4 indices were 2.36 ng/mL, 3.06 U/mL, 5.72 U/mL and 60.7 U/mL, respectively. With combined detection of tumor markers, the diagnostic power of those 4indices was best, with an area under the ROC curve of 0.913 (95%CI 0.866~0.985), a sensitivity of 88.9% anda diagnostic accuracy of 90.4%. Conclusions: Combined detection of serum CEA, CA72-4, CA19-9 and TSGFincreases the sensitivity and accuracy in diagnosis of GC, so it can be regarded as the important means for earlydiagnosis.     

Serial levels of CA 19-9 and CEA in colonic cancer

The use of serial carbohydrate antigen (CA) 19-9 assays was assessed by comparison with serial carcino-embryonic antigen (CEA) levels on the plasmas of 53 patients with colorectal carcinoma. The patients had all undergone resection for their primary tumors and in six instances subsequent resections for hepatic metastases. Initial CA 19-9 levels were greater than or equal to 37 U/mL in 22 of the 53 patients (41%) and in 68% of the patients with metastatic disease. Similar trends of serial CA 19-9 and CEA levels were found in 79% of the 53 patients. One patient with initially normal CEA levels had elevated CA 19-9 levels from the start. In ten of the 53 patients (19%), serial CA 19-9 levels remained low despite tumor recurrence or progression, and despite increasing CEA levels above 5 ng/mL. The increasing serial CEA trends predicted recurrence in 88% and increasing CA 19-9 trends in 50% of cases, which was increased to 70% by including trends of CA 19-9 levels below 37 U/mL. Following hepatic lobectomy, both serial CEA and CA 19-9 levels decreased rapidly. Used alone, serial CA 19-9 levels did not appear to be as sensitive as standard CEA in this retrospective study of selected patients.     

GROβ 在结直肠癌肿瘤血清中的表达与临床病理相关性研究

目的：探讨生长相关癌基因产物β（growth-related gene product β ,GRO β）用于结直肠癌诊断潜在的可能性。方法：收集123 例结直肠癌、88例健康对照及125 例非肿瘤患者外周血清,ELISA 法分析GRO β 的含量;免疫发光法分析CEA 及CA19- 9 的含量。统计分析不同临床特征结直癌之间GRO β 的差异;ROC 曲线评估GRO β 、CEA 和CA19- 9 诊断结直肠癌的敏感度和特异度。结果：结直肠癌血清GRO β 浓度（中位数96.15pg/mL）明显高于健康对照组（中位数43.28pg/mL,P < 0.01）和非肿瘤患者（中位数57.30pg/mL,P < 0.01）。 GRO β 水平与肿瘤TNM 分期（P < 0.01）及浸润深度均呈正相关（P < 0.05）,与肿瘤分化程度、肿瘤栓塞、淋巴结转移、肿瘤病理类型及性别无关。GRO β 检测结直肠癌的敏感度和特异度分别为56.1%（69/ 123）和95.31%（203/ 213）。 将GRO β 、CEA 和CA19- 9 阳性样本叠加后,诊断Ⅰ期结直肠癌的敏感度为22.2%（4/ 18）,诊断Ⅱ期结直肠癌的敏感度为66.7%（26/39）。 GRO β 的ROC 曲线下面积（0.834）高于CEA（0.739）和CA19- 9（0.676）。 结论：血清GRO β 浓度可能是一个有效的结直肠癌检测指标。     

Occurrence of carcinoma-associated antigen 494 in colorectal cancer tissue and in Patients' sera during metastatic disease.

CA 494 is a new carbohydrate epitope on a high-molecular-weight mucin-type glycoprotein which has been intensively investigated in pancreatic cancer. In this study, the occurrence of CA 494 was characterized in colorectal cancer tissue and in patients' sera during metastatic disease. CA 494 was detected in cancer tissue from 82% of the 49 patients studied. Serum levels of CA 494 were elevated (>40 U/ml) in 66% of the same patients during metastatic disease (n = 41). The well-established tumor markers carcinoembryonic antigen (CEA) and CA 19-9 were increased (CEA >5 ng/ml; CA 19-9 >37 U/ml) in about 79% of these patients. The correlation of CA 494 with CA 19-9 levels was lower (r = 0.532) than previously reported in pancreatic cancer.     

Carcinoembryonic antigen and carbohydrate antigen 19-9 levels of peripheral and draining venous blood in colorectal cancer patients. Correlation with histopathologic and immunohistochemical variables

Correlation between carcinoembryonic antigen (CEA) and carbohydrate antigen (CA) 19-9 levels of peripheral and draining venous blood, and 11 histopathologic and immunohistochemical variables was examined in 83 patients with colorectal cancer. CEA levels of draining blood (mean 34.5 ng/ml and positive rate greater than 5 ng/ml, 60.2%) were significantly higher than those (13.0 ng/ml and 28.9%) of peripheral blood. However, CA19-9 levels (mean 576.1 U/ml and positive rate greater than 37 U/ml, 29.5%) of draining blood were not different from those (568.0 U/ml and 29.5%) of peripheral blood. Immunohistochemically, CEA was observed in all of the 83 specimens and distributed in most of all cancer cells, whereas CA19-9 was found in 52 (62.5%) of the 83 specimens and sporadically distributed in some parts of cancer lesions in general. Elevation of CEA levels in draining and peripheral blood was most highly correlated with venous invasion, although the levels were related to four other histopathologic variables including liver metastasis, invasive layer of colorectal wall, lymphatic invasion, and Dukes' classification. Significant correlation between the CEA localized pattern of cancer cells was not found. Patients with CA19-9 nonlocalized cancer showed no elevation of the antigen levels in both peripheral and draining blood. The elevation of CA19-9 levels in peripheral blood of patients with CA19-9 localized cancer was most highly associated with lymphatic invasion, although the levels were correlated with five other variables consisting of liver metastasis, tumor differentiation, invasive layer of colorectal wall, venous invasion, and Dukes' classification out of 11 histopathologic and immunohistochemical variables. CEA levels of draining blood rose from 18.2 ng/ml and 40.3% to 30.1 ng/ml and 72.6%, respectively, after operative stimuli to cancer lesions, whereas the change of CA19-9 levels in draining blood of patients with CA19-9 localized cancer was not found during the time of operation. These results suggest that CEA may be drained mainly by the hematogenous portal system by the draining vein from the cancer cells in the invasive veins and that CA19-9 may be drained by the thoracic duct of the lymphatic system. It is also suggested that the CEA and CA19-9 elevation-relating variables may secondarily affect the CEA and CA19-9 elevation in the blood in association with the venous and lymphatic invasion of cancer lesions, respectively.     

甲胎蛋白、癌胚抗原和糖链抗原19-9联合检测诊断消化系统恶性肿瘤的价值分析

目的 探讨甲胎蛋白(AFP)、癌胚抗原(CEA)和糖链抗原19-9(CA19-9)联合检测对消化系统恶性肿瘤的诊断价值.方法 回顾性分析300例消化系统恶性肿瘤患者和108例消化系统良性病变患者的临床资料,记录患者的血清AFP、CEA和CA19-9水平,评价其诊断效能.结果 肝癌患者的血清AFP、CEA和CA19-9水平均高于肝硬化患者,胃癌、胰腺癌和结直肠癌患者的血清CEA和CA19-9水平分别高于胃溃疡、胰腺炎和溃疡性结肠炎患者,差异均有统计学意义(P<0.05).单项检测中,AFP对肝癌的诊断敏感度(78.5%)高于CEA和CA19-9(P<0.05);CA19-9对胰腺癌的诊断敏感度(78.2%)高于AFP和CEA(P<0.05).对于肝癌、胃癌、胰腺癌和结直肠癌,3项联合检测的敏感度均高于单项检测(P<0.05).结论 血清AFP、CEA和CA19-9联合检测对消化系统恶性肿瘤的早期诊断具有重要意义,可提高诊断的敏感度,且不会降低特异度.     

The clinical information value of an immunoenzyme study of the tumor markers CA-19-9, CEA and AFP in cancer of the stomach, pancreas, colon and rectum]

Blood levels of CEA, CA 19-9 and AFP were assayed by immunoenzyme technique in 60 cases of gastric cancer, 15 patients with pancreatic cancer and 30 patients with colorectal cancer. CEA and CA 19-9 levels were found to depend upon stage and degree of tumor differentiation. Changes in the antigen levels in the course of treatment reflected the degree of its radicality. In application of the immunoenzyme assay, CA 19-9 level appeared most clinically relevant in gastric, pancreatic and colorectal cancers. CEA concentration can serve as an indicator of liver metastases. CA 19-9 and CEA levels can be used for monitoring and objective evaluation of treatment for gastric, pancreatic and colorectal cancer as well as for predicting response.     

胃癌患者血清CA72-4、CEA及CA19-9水平及其与临床病理特征的相关性

目的:探讨血清CA72-4、CEA及CA19-9水平与胃癌患者病理特征的相关性。方法:选择2011年6月-2013年3月收治的86例胃癌患者,56例胃良性肿瘤患者,60例普通胃病患者,比较三组患者CA72-4、CA19-9和CEA水平;CA72-4、CA19-9和CEA单项检测及联合检测胃癌患者的阳性率;CA72-4、CA19-9和CEA水平与胃癌病理特征的关系。结果:胃癌组患者血清CA72-4、CA19-9和CEA水平均高于胃良性肿瘤组患者（P＜0.05),胃癌良性组患者均高于对照组（P＜0.05);三种胃癌肿瘤标志物中CA72-4诊断胃癌的阳性率最高,肿瘤3项标志物的阳性检测率要显著高于单项CA72-4、CA19-9、CEA的阳性检出率（P＜0.05）;肿瘤越大、TNM分期越高,CA72-4、CA19-9和CEA水平越高。结论:采用CA72-4、CA19-9和CEA联合检测是诊断胃癌比较理想的组合。CA72-4、CA19-9和CEA水平的变化可以反应胃癌患者的病理特征。     

结直肠癌血清纤维蛋白原和炎性介质、肿瘤标志物的术前诊断价值

目的探讨纤维蛋白原FIB、炎性介质（CRP、SAA）和肿瘤标志物（CEA、CA19-9、CA72-4）在术前评估结直肠癌分期的价值。方法178例经病理诊断为结直肠癌的患者,均于术前3天测定FIB、CRP、SAA、CEA、CA19-9和CA72-4的水平,并与术后病理分期相比较。结果FIB与CRP、SAA、CEA和CA19-9的相关性有统计学意义,相关系数分别为0.600（ P =0.000）、0.547（ P=0.000）、0.168（ P =0.025）、0.231（ P =0.002）。FIB（ P =0.000）、CRP( P =0.004)、SAA( P =0.046)、CEA( P =0.001)、CA19-9（ P =0.000）和CA724( P =0.040)的值在不同的TNM分期之间差异有统计学意义。 建立诊断转移性结直肠癌的ROC曲线,FIB的ROC曲线下面积A_Z=0.728（ P =0.000）,CRP的A_Z=0.646（ P =0.001）,SAA的A_Z=0.658（ P =0.042）,CA19-9的A_Z=0.665（ P =0.000）,CA72-4的A_Z=0.586（ P =0.049）有统计学意义;当取FIB=3.715g/L为分界点时,FIB诊断转移性结直肠癌的敏感度为65.8%,特异性为66.6%,准确性为66.3%。结论FIB、炎性介质和肿瘤标志物有相关性,运用FIB术前评估有淋巴结转移的结直肠癌患者有潜在应用价值。     

Are high initial CEA and CA 19–9 levels associated with the presence of K-ras mutation in patients with metastatic colorectal cancer?

In certain cell culture studies, significant CEA expression was observed in K-ras mutant cells. However, the relationship between high CEA levels and K-ras status has not been sufficiently investigated. In the present study, we aimed to determine the prognostic role of initial CEA and CA 19–9 values in metastatic colorectal cancer patients according to the status of K-ras. Between 2000 and 2010, a total of 215 patients with metastatic colorectal cancer who were treated and followed up in our oncology center were analyzed. Smokers were excluded from the study. The clinicopathological findings and initial CEA and CA19-9 values were determined. K-ras mutation analysis was performed using quantitative PCR evaluation of the DNA from the tumor tissues. Eighty-two patients (38.1 %) were female and 133 (61.9 %) were male, with a median age of 59 years (range 27–83). Based on tumor localization, 127 patients (59 %) were classified as colon cancer patients and 88 patients (41 %) were classified as rectal cancer patients. The majority of patients (83.3 %) had pure adenocarcinoma histology, while 36 cases (16.7 %) had mucinous adenocarcinoma. The initial CEA levels were detected to be high (>5 ng/mL) in 108 of the patients (50.2 %), while high levels of initial CA 19–9 (>37 ng/mL) were found in 90 patients (41.8 %). K-ras mutations were detected in 99 of the patients (46 %). K-ras was found to be wild type in 116 patients (54 %). Significant differences were detected between the K-ras wild-type and mutant groups with respect to age and the initial serum CEA levels. Patients with K-ras mutations were younger (p?=?0.04) and had higher initial CEA levels (p?=?0.02) compared to patients with K-ras wild type. The median overall survival (OS) time and 3-year OS rate for patients with a high initial CEA level (>5 ng/mL) were significantly shorter than those of patients with a low initial CEA level (<5 ng/mL) (50.5 months and 61.8 % vs. 78.6 months and 79.1 %, p?=?0.014). Furthermore, the patients with low initial CA 19–9 levels (<37 ng/mL) had a significant better median OS interval and 3-year OS rate (76.1 months and 80.1 %) compared to patients with high initial CA 19–9 levels (>37 ng/mL) (37.6 months and 55.7 %, p?=?0.04). Multivariate analysis indicated that stage at the time of diagnosis (p?<?0.001) and low initial serum CEA level (p?=?0.037) were independent prognostic factors of OS. For K-ras mutant patients, the stage at diagnosis (p?=?0.017), low initial serum CEA level (p?=?0.001), and low initial serum CA 19–9 level were found to be independent prognostic indicators of OS. Our findings demonstrate for the first time that the presence of a K-ras mutation correlated with high initial CEA and CA 19–9 levels in patients with metastatic colorectal cancer. Patients with high initial CEA and CA 19–9 levels may potentially predict the presence of a K-ras mutation, and this prediction may guide targeted therapies in these patients.     

Gastric Cancer: Tumor Markers as Predictive Factors for Preoperative Staging

Introduction

CEA, CA 19-9, and CA 72-4 are tumor markers commonly used for gastric neoplasms. The clinical importance of the preoperative serum levels of these tumor markers in gastric cancer (GC) is not well known. Even less is known about the predictive value of the preoperative serum levels of the ??-subunit of human chorionic gonadotropin (hCG??).

Aims and Methods

We designed a prospective study to evaluate the significance of the preoperative values of these tumor markers in GC. The serum levels that we considered as positive are as follows: CA 72-4, >4 U/ml; CEA, >5?ng/ml; CA 19-9, >37 U/ml; hCG??-free subunit, <5 mUI/ml. These levels were correlated by pathological stage, lymph node status, and histology.

Results

We studied 66 (42 male and 24 female) patients prospectively. Twenty-seven patients had stage I and stage II GCs, while 39 patients had stage III and stage IV GCs. Two patients tested positive for hCG??. The preoperative positivity rates of CA 72-4 in patients at the early stages (stages I and II) and in patients with advanced disease (stages III and IV) were 0 and 28 patients, respectively. The preoperative positivity rates of CEA/CA 19.9 were 0/5 and 7/12 patients in early stages and advanced disease, respectively. The serum levels of these markers were not correlated with the histological type or tumoral grade of GC.

Conclusion

The preoperative serum level of CA 72-4 has the best predictive value in indicating advanced disease in patients diagnosed with GC. A combination of these four markers is better in predicting this situation.     

Prognostic value of preoperative serum tumor markers in gastric cancer

AIM: To evaluate the prognostic value of preoperative carcinoembryonic antigen (CEA), carbohydrate antigen (CA)19-9, and CA50 in patients undergoing D2 resection.METHODS: We evaluated 363 patients with gastric cancer who underwent gastrectomy at our hospital from January 2006 to December 2009. Blood samples were obtained from each patient within 1 wk before surgery. The cut-off values for serum CEA, CA19-9, and CA50 were 5 ng/mL, 37 U/mL, and 20 U/mL, respectively. The correlation between preoperative tumor marker levels and prognosis was studied by means of univariate and multivariate analyses.RESULTS: The preoperative serum positive rates of CEA, CA19-9 and CA50 were 24.0%, 18.9% and 24.5%, respectively. The positivity rate of serum CEA was significantly correlated with age (P < 0.001), sex (P = 0.022), tumor size (P = 0.007) and depth of invasion (P = 0.018); CA19-9 with tumor size (P = 0.042) and lymph node metastasis (P < 0.001); and CA50 only with lymph node metastasis (P = 0.001). In multivariate analysis, tumor size, T category, N category, vascular or neural invasion, and adjuvant chemotherapy were independent prognostic factors for overall survival. CA19-9 had an independent prognostic significance in patients without adjuvant chemotherapy (P = 0.027).CONCLUSION: Preoperative serum CEA, CA19-9 and CA50 are prognostic in patients with gastric cancer. Only CA19-9 is an independent prognostic factor after surgery without adjuvant chemotherapy.     

联合检测术前与术后CEA CA19-9 CA72-4对不同分期胃癌根治术后复发的预测价值

  目的   探讨联合检测术前、术后CEA、CA19-9、CA72-4等肿瘤标志物对不同分期胃癌根治术后复发的预测价值。   方法   回顾性分析北京大学肿瘤医院2002年1月至2007年3月收治的564例胃癌患者的临床资料及血清肿瘤标志物情况。所有患者均未行新辅助治疗,术前、术后均联合检测CEA、CA19-9、CA72-4等肿瘤标志物。分析CEA、CA19-9、CA72-4等肿瘤标志物与胃癌复发的关系。   结果   在Ⅰ、Ⅱ期胃癌患者中,CEA、CA19-9、CA72-4术前阳性的患者术后复发率分别为50.0%、24.1%、22.6%,而术后阳性的患者复发率分别为42.9%、21.7%、14.3%。在Ⅲ期胃癌患者中,CEA、CA19-9、CA72-4术前阳性的患者术后复发率分别为50.0%、55.2%、47.6%,而术后阳性的患者术后复发率分别为75.0%、66.7%、66.7%。多因素分析表明术前CEA增高是Ⅰ、Ⅱ期胃癌复发的独立影响因素,术后CA72-4增高是Ⅲ期胃癌复发的独立影响因素。   结论   对于Ⅰ、Ⅱ期胃癌,术前CEA水平是预测复发较好的因子;对于Ⅲ期胃癌,术后CA72-4水平的预测性较好。      

血清miR-135及miR-601在胃癌患者中的表达及其诊断价值

背景与目的：胃癌是消化内科常见的恶性肿瘤。探讨血清miR-135及miR-601在胃癌患者中的表达及其诊断价值。方法：选取2016年1月1日—2019年9月30日三亚中心医院收治的胃癌患者152例,根据胃癌病情进展及临床病理学分期分为早期胃癌组（n=62）和进展期胃癌组（n=90）,Ⅰ～Ⅱ期（n=65）和Ⅲ～Ⅳ期（n=87）,无淋巴结转移组（n=73）和淋巴结转移组（n=79）。另选择96例非胃癌患者作为非胃癌组,60例健康体检正常者作为对照组。采用实时荧光定量聚合酶链反应（real-time fluorescence quantitative polymerase chain reaction,RTFQ-PCR）检测各组血清miR-135及miR-601表达水平,化学发光法测定糖类抗原72-4（carbohydrate antigen 72-4,CA72-4）及糖类抗原19-9（carbohydrate antigen 19-9,CA19-9）水平,分析其对早期胃癌的诊断价值。采用Pearson相关分析来分析胃癌患者血清miR-135、miR-601水平与CA72-4及CA19-9的相关性。结果：与非胃癌组和对照组比较,胃癌组血清miR-135、miR-601、CA72-4及CA19-9水平均明显升高（P均<0.001）。进展期胃癌组血清miR-135（5.70±1.84 vs 3.83±1.12）、miR-601（11.28±3.73 vs 7.36±2.15）、CA72-4［（41.75±10.14）U/mL vs（17.82±4.93）U/mL］及CA19-9［（63.72±17.50）U/mL vs （35.84±10.36）U/mL］水平均明显高于早期胃癌组（均P<0.001）。Ⅲ～Ⅳ期胃癌患者血清miR-135（6.10±1.90 vs 3.74±1.08）、miR-601（12.14±3.92 vs 7.05±2.04）、CA72-4［（44.68±12.35）U/mL vs（16.40±4.52）U/mL］和CA19-9［（68.53±19.13）U/mL vs（33.75±10.60）U/mL］水平均明显高于Ⅰ～Ⅱ期（均P<0.001）,而且Ⅱ期胃癌患者血清miR-135、miR-601、CA72-4及CA19-9水平均明显高于对照组（P<0.05）。淋巴结转移组血清miR-135（6.24±1.95 vs 3.65±0.97）、miR-601（12.60±4.13 vs 6.84±1.92）、CA72-4［（48.70±12.37）U/mL vs （14.85±4.20）U/mL］和CA19-9［（72.36±20.25）U/mL vs（31.60±10.17）U/mL］水平均明显高于无淋巴结转移组（均P<0.001）。受试者工作特征（receiver operating characteristic,ROC）曲线分析结果显示,血清miR-135、miR-601、CA72-4及CA19-9水平诊断早期胃癌的最佳截断值分别为3.78、7.14、17.63 U/mL、35.70 U/mL,四项联合诊断早期胃癌的 曲线下面积（area under curve,AUC）（0.920,95% CI：0.860～0.978）最大,其灵敏度和特异度分别为98.6%和77.4%。相关分析显示,胃癌患者血清miR-135、miR-601水平与CA72-4及CA19-9均呈正相关（r=0.748,P<0.001,r=0.694,P<0.001;r=0.815,P<0.001;r=0.716,P<0.001）。结论：胃癌患者血清miR-135、miR-601、CA72-4及CA19-9水平明显升高,四项联合检测有助于提高早期胃癌的诊断价值。     

Measurement of a monoclonal-antibody-defined antigen (CA19-9) in the sera of patients with malignant and nonmalignant diseases. Comparison with carcinoembryonic antigen

Immunoradiometric assay (IRMA) using monoclonal antibody for colon cancer cell surface antigen (CA19-9) was compared with carcinoembryonic antigen (CEA) with regard to sensitivity and specificity in 730 patients. In the 341 patients who had no evidence of malignant disease, CA19-9 levels ranged between less than 1.5 to 49 U/ml. Specificity of CA19-9 at a cutoff of 20 U/ml was similar to that of CEA at a cutoff of 5.0 ng/ml; CA19-9 was more sensitive than CEA in pancreatic cancer, whereas CEA was more sensitive than CA19-9 in breast, colon, and gastric cancer. Of 17 patients with pancreatic cancer, 13 had elevated levels of CA19-9 (sensitivity, 76%), whereas only 8 had elevated levels of CEA (sensitivity, 47%) and 15 had elevated levels of either CEA or CA19-9 (sensitivity, 88%). These findings suggest that, like CEA, CA19-9 is detectable in nonmalignant diseases and is not specific for gastrointestinal tumors, and has higher sensitivity than CEA only in pancreatic cancer. However, further prospective studies are required to verify its value in the diagnosis and management of pancreatic cancer.     

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。     

TAP与传统肿瘤标志物在不同肿瘤中的相关性

目的:分析肿瘤异常蛋白（TAP）水平与其他10种传统肿瘤标志物在不同类型肿瘤患者中的相关性。方法:采集肺癌、结直肠癌、食管癌、胃癌患者血液样本,采用凝集素亲和方法检测TAP,采用化学发光免疫分析法检测甲胎蛋白（AFP）、癌胚抗原（CEA）、糖类抗原50（CA50）、糖类抗原19-9（CA19-9）、糖类抗原125（CA125）、糖类抗原72-4（CA72-4）、铁蛋白(FRT)、神经元特异性烯醇化酶（NSE）、鳞状细胞癌抗原（SCC）、细胞角蛋白19片段（CYFRA21-1）。采用Spearman分析TAP与传统肿瘤标志物之间的相关性。结果:TAP水平在4种肿瘤患者中无明显差异。肺癌患者中,TAP与CA125、CA19-9、CEA、CYFRA21-1、CA50的相关性具有统计学意义（P<0.05）。结直肠癌患者中,TAP与CA19-9、CEA、CA50、CA72-4、FRT存在显著相关性（P<0.05）。胃癌患者中,TAP与CA125及CA50的相关性具有统计学意义（P<0.05）。食管癌患者中,TAP与10种传统肿瘤标志物均无显著相关性。结论:TAP与10种传统肿瘤标志物在不同类型肿瘤中的相关性并不一致,表明不同类型肿瘤细胞产生的异常糖链糖蛋白种类不同。     

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.