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The expression of circulating tumor cells in peripheral blood of patients with non-small cell lung cancer and its detection
Vol 32, Issue 4, 2018
Abstract
This study aimed to investigate the expression of circulating tumor cells (CTCs) in peripheral blood and relevant detection methods as well as the clinical values of determination of CTCs for the diagnosis of non-small cell lung cancer (NSCLC). Peripheral blood specimens were acquired from the patients with NSCLC who came to the Thoracic Surgery Department of Jining No.1 Peoples Hospital, Shandong, China for the first visit between January 2015 and November 2016. Whether there was metastasis of CTCs or not was determined by detecting the number of epithelial cell adhesion molecules (EpCAM) which had expression in the CTCs of the peripheral blood with fluorescence polymerase chain reaction. Moreover, the correlation between the expression level of EpCAM of patients with NSCLC during postoperative adjuvant treatment and the efficacy of adjuvant therapy was initially explored. The expression level of EpCAM of the NSCLC patients was remarkably different to that of the patients with benign lung diseases. The expression level of EpCAM of the patients with NSCLC was notably different with that of the healthy volunteers. The expression level of EpCAM of the patients with NSCLC was much higher than that of patients with benign lung diseases and the volunteers. Moreover, the expression level of NSCLC at stages I, II and IIIA had significant differences; the expression level of EpCAM tended to increase as the stage of NSCLC developed. The expression level of EpCAM in CTCs of peripheral blood can be regarded as a reference for the early diagnosis and detection of NSCLC before and after surgery.
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Copyright (c) 2018 X M Bu, F F Xu, J Ma, B Jiang
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Medical Genetics, University of Torino Medical School, Italy

Department of Biomedical, Surgical and Dental Sciences, University of Milan, Italy