期刊
CLINICAL CHEMISTRY AND LABORATORY MEDICINE
卷 57, 期 7, 页码 1063-1072出版社
WALTER DE GRUYTER GMBH
DOI: 10.1515/cclm-2018-0929
关键词
biomarker; gastric cancer; lncRNA CTC-497E21.4; long non-coding RNA; serum
资金
- National Nature Science Foundation [81201349, 81000775]
- Young medical key talents in Jiangsu province [QNRC 2016686, 2016687]
- Frontier technical innovation project of Nantong [MS22015049]
- key technical innovation project of Nantong [MS22015049]
- Nantong Science and Technology Plan Project [MS12017008-3]
Background: Long non-coding RNAs (lncRNAs) have been reported to play a key role in gastric cancer (GC) tumorigenesis. However, the clinical application value of serum lncRNAs in GC has remained largely unknown. We investigated the role of a novel lncRNA named CTC-497E21.4 in the diagnosis and the prognosis of GC. Methods: We focused on evaluation of lncRNA CTC497E21.4 by real-time fluorescent quantitative polymerase chain reaction (RTFQ-PCR). The study involved following aspects: (1) confirmation of the higher lncRNA CTC497E21.4 expression in different types of GC specimens than corresponding controls; (2) evaluation of monitoring tumor dynamics by the serum lncRNA CTC-497E21.4 assay; (3) evaluation of the prognostic value of lncRNA CTC-497E21.4 assay in GC. Results: (1) The method of RTFQ-PCR detection of lncRNA CTC-497E21.4 was evaluated to have high sensitivity and specificity. (2) The expression levels of lncRNA CTC-497E21.4 were higher in GC patients compared with corresponding controls (p<0.001), and the combination of serum lncRNA CTC-497E21.4, CEA and CA19-9 could improve diagnostic sensitivity (96.36%). (3) The serum lncRNA CTC-497E21.4 expression levels were lower in postoperative samples than preoperative samples (p =0.0021) and survival curves downloaded from TCGA showed high lncRNA CTC-497E21.4 levels were associated with poor OS of GC (p=0.0351). Conclusions: lncRNA CTC-497E21.4 may be a potential biomarker for the diagnosis and the prognosis of GC.
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