检验医学 ›› 2021, Vol. 36 ›› Issue (9): 901-905.DOI: 10.3969/j.issn.1673-8640.2021.09.003

• 临床应用研究·论著 • 上一篇    下一篇

CTC、CEA、CA125联合检测在结直肠癌中的临床价值

杨朝美1, 冯杰2, 郎磊1, 颜光涛2()   

  1. 1.重庆市急救医疗中心检验科,重庆 400014
    2.中国人民解放军总医院医学检验中心,北京 100853
  • 收稿日期:2020-03-21 出版日期:2021-09-30 发布日期:2021-09-24
  • 通讯作者: 颜光涛
  • 作者简介:颜光涛,E-mail: yan301@263.net
    杨朝美,女,1977年生,副主任技师,主要从事临床生化和免疫学检验工作。
  • 基金资助:
    国家科技支撑计划(2015BAK45B01);国家 863 计划(2014AA022304);重庆市科卫联合医学科研项目(2021MSXM043)

Clinical application value of CTC combined determination with CEA and CA125 in colorectal cancer

YANG Chaomei1, FENG Jie2, LANG Lei1, YAN Guangtao2()   

  1. 1. Department of Clinical Laboratory,Chongqing Emergency Medical Center,Chongqing 400014,China
    2. Medical Laboratory Center,Chinese People's Liberation Amry General Hospital,Beijing 100853,China
  • Received:2020-03-21 Online:2021-09-30 Published:2021-09-24
  • Contact: YAN Guangtao

摘要:

目的 探讨循环肿瘤细胞(CTC)、癌胚抗原(CEA)及糖类抗原(CA)125联合检测在结直肠癌中的临床价值。方法 选取结直肠癌患者115例(结直肠癌组)、结直肠息肉患者99例(息肉组)。检测所有研究对象甲胎蛋白(AFP)、CEA、CA125、CA19-9、CA15-3、CA72-4及CTC。根据CTC数量将结直肠癌患者分为Ⅰ组(CTC为0个/7.5 mL)、Ⅱ组(CTC为1~4个/7.5 mL)、Ⅲ组(CTC≥5个/7.5 mL)。根据结直肠癌TNM分期将结直肠癌患者分为0~Ⅱ期组、Ⅲ期组、Ⅳ期组。采用Logistic回归分析评估结直肠癌的危险因素。采用受试者工作特征(ROC)曲线评价各项指标鉴别诊断结直肠癌的价值。结果 Ⅰ组血清CEA、CA19-9、CA72-4水平低于Ⅱ组和Ⅲ组(P<0.05),血清AFP水平低于Ⅱ组(P<0.05),血清CA125水平低于Ⅲ组(P<0.05)。Ⅱ组与Ⅲ组之间各项指标差异均无统计学意义(P>0.05)。息肉组、结直肠癌组CTC数量及血清CEA、CA125、CA19-9、CA72-4水平差异均有统计学意义(P<0.05),血清AFP、CA15-3水平各组间差异均无统计学意义(P>0.05)。结直肠癌TNM分期0~Ⅱ期组与Ⅳ期组之间、Ⅲ期组与Ⅳ期组之间CA19-9和CA724水平差异均有统计学意义(P<0.05);0~Ⅱ期组与Ⅳ期组CTC差异有统计学意义(P<0.05);3组之间血清CEA、AFP、CA125、CA15-3水平差异均无统计学意义(P>0.05)。Logistic回归分析结果显示,CEA、CA125、CTC是结直肠癌发生的危险因素[比值比(OR)值分别为1.368、1.135、5 560 619.101,95%可信区间(CI)分别为1.120~1.672、1.037~1.244、0.000~2.129×10214]。ROC曲线分析结果显示,CEA、CA125、CTC单项及联合检测鉴别诊断结直肠癌的曲线下面积(AUC)分别为0.840、0.741、0.822、0.943。结论 联合检测CTC、CEA、CA125在结直肠癌中有较大的临床价值。

关键词: 循环肿瘤细胞, 癌胚抗原, 糖类抗原125, 结直肠癌

Abstract:

Objective To investigate the clinical application value of the combined determination of circulating tumor cell(CTC) number,carcinoembryonic antigen(CEA)and carbohydrate antigen(CA)125 in colorectal cancer. Methods A total of 115 patients with colorectal cancer(colorectal cancer group)and 99 patients with colorectal polyps(polyp group)were enrolled. All research subjects were determined for alpha-fetoprotein(AFP),CEA,CA125,CA19-9,CA15-3,CA72-4 and CTC number. According to CTC number,the patients with colorectal cancer were classified into group Ⅰ(CTC 0/7.5 mL),group Ⅱ(CTC 1-4/7.5 mL) and group Ⅲ (CTC≥5/7.5 mL). According to TNM stage of colorectal cancer,the colorectal cancer patients were classified into 0-Ⅱ stage group,Ⅲ stage group and Ⅳ stage group. Logistic regression analysis was used to evaluate the risk factors of colorectal cancer. Receiver operating characteristic(ROC)curve was used to evaluate the value of various indicators in the differential diagnosis of colorectal cancer. Results The levels of serum CEA,CA19-9 and CA72-4 in Ⅰ group were lower than those in Ⅱ group and Ⅲ group(P<0.05),the level of serum AFP was lower than that in Ⅱ group(P<0.05),and the level of serum CA125 was lower than that in Ⅲ group(P<0.05). There was no statistical significance in the indicators between Ⅱ group and Ⅲ group(P>0.05). There was statistical significance in CTC number and serum CEA,CA125,CA19-9 and CA72-4 levels between polyp group and colorectal cancer group(P<0.05),while there was no statistical significance in serum AFP and CA15-3 levels among the groups(P>0.05). There was statistical significance in CA19-9 and CA724 levels between TNM stage 0-Ⅱ group and stage Ⅳ group and between stage Ⅲ group and stage Ⅳ group(P<0.05). There was statistical significance in CTC number between stage 0-Ⅱ group and stage Ⅳ group(P<0.05). There was no statistical significance in serum CEA,AFP,CA125 and CA15-3 levels among the 3 groups(P>0.05). Logistic regression analysis showed that the odds ratios(OR) of CEA,CA125 and CTC number were 1.368,1.135 and 5 560 619.101,respectively. 95% Confidence intervals(CI) were 1.120-1.672,1.037-1.244,0.000-2.129×10214,respectively. ROC curve analysis showed that the areas under curves(AUC) of CEA,CA125,CTC number single determinations and combined determination were 0.840,0.741,0.822 and 0.943,respectively. Conclusions The combined determination of CTC number,CEA and CA125 plays a role for patients with colorectal cancer.

Key words: Circulating tumor cell, Carcinoembryonic antigen, Carbohydrate antigen 125, Colorectal cancer

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