检验医学 ›› 2022, Vol. 37 ›› Issue (3): 264-269.DOI: 10.3969/j.issn.1673-8640.2022.03.015

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外周血循环肿瘤细胞形态学分析技术在临床检验中的应用

俞琦1, 孙懿1(), 王琼丽2, 蔡逸婷1, 李莉1   

  1. 1.上海市第一人民医院检验科,上海 200080
    2.保山市人民医院检验科,云南 保山 678000
  • 收稿日期:2021-03-09 修回日期:2021-05-24 出版日期:2022-03-30 发布日期:2022-05-10
  • 通讯作者: 孙懿
  • 作者简介:孙懿,E-mail: medsunyi@163.com
    俞琦,女,1985年生,检验技师,主要从事临床检验工作。
  • 基金资助:
    科技部重大专项(2016YFC0106002);上海青年临床医技人才(临床检验专业)培养资助计划(沪医卫基〔2018〕02号)

Application of morphological analysis of circulating tumor cells in clinical examination

YU Qi1, SUN Yi1(), WANG Qiongli2, CAI Yiting1, LI Li1   

  1. 1. Department of Clinical Laboratory,Shanghai General Hospital,Shanghai 200080,China
    2. Department of Clinical Laboratory,Baoshan People's Hospital,Baoshan 678000,Yunnan,China
  • Received:2021-03-09 Revised:2021-05-24 Online:2022-03-30 Published:2022-05-10
  • Contact: SUN Yi

摘要:

目的 探讨外周血循环肿瘤细胞(CTC)形态学分析技术在肿瘤临床检验中的应用。方法 收集212例肿瘤患者外周血样本,使用CTCBIOPSY异常细胞分离染色仪检测后,于显微镜下进行CTC形态学分析。采用CD45和CD31单克隆抗体进行免疫组化检测,进一步验证形态学判读标准的临床适用性。分析CTC检出率、CTC计数与肿瘤类型、临床分期等临床因素之间的关系。结果 形态学分析技术CTC检出率为41.51%,经免疫组化检测验证,特异性为100%。CTC阳性组与阴性组年龄和TNM分期差异均有统计学意义(P=0.036、P<0.001)。不同类型肿瘤和相同类型不同分期肿瘤患者的CTC检出率和CTC计数均有所不同,其中肺癌晚期和前列腺癌晚期患者CTC检出率最高,且早、晚期肿瘤患者的CTC计数差异有统计学意义(P<0.001)。结论 CTC形态学分析技术可以保证细胞的完整性,能够快速判读多种类型肿瘤的CTC,特异性好,但敏感性优势不显著。

关键词: 循环肿瘤细胞, 外周血, 形态学, 上皮肿瘤细胞大小分离法

Abstract:

Objective To investigate the application of morphological analysis of circulating tumor cells(CTC) in tumor clinical examination. Methods Peripheral blood samples of 212 patients with tumors were collected and analyzed by CTCBIOPSY detection system. The morphological analysis of CTC was performed by microscopy. The clinical applicability of morphological criteria was further verified by immunohistochemistry with CD45 and CD31 antibodies. The relationship between CTC count and detection rate and clinical factors,such as tumor type and clinical stage,was analyzed. Results The detection rate of CTC was 41.51%,and the specificity was 100%. Comparing the CTC-positive group with the CTC-negative group,there was statistical significance in age(P=0.036) and TNM stage(P<0.001). The detection rate of CTC and CTC count were different in different types of tumors and different stages of the same type of tumor. The detection rate of CTC was the highest in patients with advanced lung cancer and prostate cancer,and the difference of CTC count in patients with early and advanced tumors had statistical significance(P<0.001). Conclusions CTC morphological analysis can preserve the integrity of cells,and it can judge rapidly the CTC of various tumors,with good specificity and general sensitivity.

Key words: Circulating tumor cell, Peripheral blood, Morphology, Isolation by the size of epithelial tumor cell

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