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MicroRNAs as potential biomarkers for diagnosis, therapy and prognosis of gastric cancer

Authors Yuan HL, Wang T, Zhang KH

Received 13 November 2017

Accepted for publication 9 May 2018

Published 6 July 2018 Volume 2018:11 Pages 3891—3900


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 4

Editor who approved publication: Dr Faris Farassati

Hai-Liang Yuan, Ting Wang, Kun-He Zhang

Department of Gastroenterology, the First Affiliated Hospital of Nanchang University, Jiangxi Institute of Gastroenterology & Hepatology, Nanchang, People’s Republic of China

Abstract: Despite the widespread use of endoscopy and conventional tumor biomarkers, gastric cancer (GC) remains one of the most frequent causes of cancer-related deaths worldwide due to its late diagnosis and poor response to treatment. Valuable and practical biomarkers are urgently needed to screen patients with a high risk of GC that can complement endoscopic diagnosis. Such biomarkers will enable the efficient prediction of therapeutic response and prognosis of GC patients and favor the establishment of an effective treatment strategy for each and every patient. MicroRNAs (miRNAs) are a class of small non-coding RNA sequences that play important roles in modulating key biological processes by regulating the expression of target genes. Expectedly, miRNAs are abnormally expressed within the tumor tissue and in associated biological fluids of GC patients including their blood, gastric juice, and urine. Accumulating evidence indicates that miRNAs are potential biomarkers with multiple diagnostic functions for GC. Here, we review recent advances and challenges in using miRNAs, particularly biofluid miRNAs, as GC biomarkers with potential clinical applications including diagnosing, clinically staging, and predicting malignant behaviors, therapy response, recurrence after surgery and survival time.

Keywords: gastric cancer, microRNA, biomarker, diagnosis, prognosis

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