MicroRNAs: Potential Candidates for Diagnosis and Treatment of Colorectal Cancer

Abstract

Colorectal cancer (CRC) is known as the third common cancer worldwide and an important public health problem in different populations. Several genetics and environmental risk factors are involved in the development and progression of CRC including chromosomal abnormalities, epigenetic alterations, and unhealthy lifestyle. Identification of risk factors and biomarkers could lead to a better understanding of molecular pathways involved in CRC pathogenesis. MicroRNAs (miRNAs) are important regulatory molecules which could affect a variety of cellular and molecular targets in CRC. A large number of studies have indicatedderegulations of some known tissue-specific miRNAs, e.g. miR-21, miR-9, miR-155, miR-17, miR-19, let-7 and miR-24 as well as circulating miRNAs, e.g. miR-181b, miR-21, miR-183, let-7g, miR-17 and miR-126, in patients with CRC. In the current review, we focus on the findings of preclinical and clinical studies performed on tissue-specific and circulating miRNAs as diagnostic biomarkers and therapeutic targets for the detection of patients at various stages of CRC. This article is protected by copyright. All rights reserved

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