Article ID Journal Published Year Pages File Type
5525583 Cancer Letters 2017 7 Pages PDF
Abstract

•circRNA is exonic, intronic or retained-intronic.•CircRNAs mediate transcriptional and post-transcriptional regulation of gene and protein expression.•CircRNAs are critical for cancer biology.

Circular RNAs (circRNAs) are a type of non-coding RNA molecules that lack a 5′-terminal cap and 3′-terminal poly A tail. A large number of circRNAs have been identified through biological experiments, computational methods and high-throughput sequencing. CircRNA sequence composition determines if a given circRNA is exonic, intronic or retained-intronic. CircRNAs are more abundant and stable than linear mRNAs, and their expression is both step- and location-specific. CircRNAs mediate transcriptional and post-transcriptional regulation of gene and protein expression. CircRNAs regulate cancer development via multiple mechanisms, including miRNA sponges, modulating Wnt signaling pathway and epithelial-mesenchymal transition. An in-depth study of circRNA will provide a better understanding of carcinogenesis and assist in developing clinical diagnostic and therapeutic strategies.

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Life Sciences Biochemistry, Genetics and Molecular Biology Cancer Research
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