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Article type: Research Article
Authors: Zheng, Yuanyuana | Cui, Longa | Sun, Weiliangb | Zhou, Huia; 1 | Yuan, Xianbina | Huo, Minga | Chen, Jiea | Lou, Yanruc | Guo, Junminga; *
Affiliations: [a] School of Medicine, Ningbo University, Ningbo, Zhejiang, China | [b] Ningbo Yinzhou Hospital and the Affiliated Hospital, School of Medicine, Ningbo University, Ningbo, Zhejiang, China | [c] Ningbo No. 1 Hospital and the Affiliated Hospital, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
Correspondence: [*] Corresponding author: Junming Guo, PhD, Ningbo University School of Medicine, Ningbo 315211, China. Tel.: +86 574 87600758; Fax: +86 574 87608638; E-mail: junmingguo@yahoo.com.
Note: [1] Present address: Department of Laboratory Medicine, The First Hospital of Jiaxing, Jiaxing, China.
Abstract: The detection of circulating tumor cells (CTCs) has received great attention. MicroRNA-21 (miR-21) plays crucial roles in carcinogenesis and is considered as one of the most studied oncomiRNAs. We determined if miR-21 could be used a marker for the detection of CTCs in gastric cancer patients. Peripheral blood samples were collected from 53 preoperative patients with gastric cancer and 20 healthy volunteers. Real-time reverse transcription-polymerase chain reaction was used to detect the level of miR-21. Receiver operator characteristic curves (ROC) were constructed. Patients with gastric cancer display a significantly higher level of miR-21 in peripheral blood than those from controls. The miR-21 level was associated with the tumor node metastasis (TNM) stage, tumor size and tissue categories. The area under ROC curve was up to 0.853 ± 0.086. This study highlights the potential of the detection of miR-21 in peripheral blood as a novel tool for monitoring CTCs in gastric cancer patients.
Keywords: Gastric cancer, microRNA-21, gene diagnosis, circulating tumor cells
DOI: 10.3233/CBM-2011-0231
Journal: Cancer Biomarkers, vol. 10, no. 2, pp. 71-77, 2012
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