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European Journal of Medical Research
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Open Access 01-12-2017 | Research

Novel circulating microRNAs expression profile in colon cancer: a pilot study

Authors: Ya-nan Wang, Zhao-hua Chen, Wei-chang Chen

Published in: European Journal of Medical Research | Issue 1/2017

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Abstract

Purpose

To identify the expression profile of novel microRNAs (miRNAs) in colon cancer and evaluate their clinical applicability.

Methods

Differences in the expression of serum miRNAs in patients with colon cancer and healthy controls were identified using miRNA microarrays. Differentially expressed miRNAs were verified via real-time polymerase chain reaction (PCR) using sera from 50 patients with colon cancer and 44 healthy controls. These miRNAs were also verified in a double-blind validation experiment using sera from 30 patients with colon cancer, 30 patients with colonic polyps, and 30 healthy controls.

Results

Microarray hybridization revealed that 87 miRNAs were differentially expressed between the sera of patients with colon cancer and healthy controls. Among these miRNAs, 39 miRNAs were up-regulated, whereas 48 miRNAs were down-regulated. Verification of the expression of these miRNAs using real-time PCR revealed that the expression levels of miR-31, miR-141, miR-224-3p, miR-576-5p, and miR-4669 were significantly different between patients with colon cancer and healthy controls. Using these five miRNAs to construct a miRNA expression profile (or miRNA panel) will facilitate more effective diagnosis of colon cancer.

Conclusion

Clinical analysis of miR-31, miR-141, miR-224-3p, miR-576-5p, and miR-4669 expression in patients with colon cancer may facilitate the diagnosis of colon cancer.
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Metadata
Title
Novel circulating microRNAs expression profile in colon cancer: a pilot study
Authors
Ya-nan Wang
Zhao-hua Chen
Wei-chang Chen
Publication date
01-12-2017
Publisher
BioMed Central
Published in
European Journal of Medical Research / Issue 1/2017
Electronic ISSN: 2047-783X
DOI
https://doi.org/10.1186/s40001-017-0294-5

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