Noncoding RNAs and their functional involvement in regulation of chronic myeloid leukemia.

Noncoding RNAs (ncRNAs) comprise multiple classes of transcripts that have no protein-coding ability but play critical roles as RNA regulators in various cellular processes. To date, the well-studied ncRNAs are microRNAs (miRs) that generally act as regulators of gene expression through binding to target mRNAs. Recent advances in high-throughput sequencing technologies have led to the discovery of thousands of unannotated noncoding transcripts, especially long noncoding RNAs (lncRNAs). These lncRNAs are being increasingly recognized as key regulators in diverse biological processes via a variety of mechanisms. Aberrant expression of miRs and lncRNAs has been shown to be associated with many human diseases and cancers. Increasing ncRNAs have been identified as biomarkers for patient prognosis and potential therapeutic agents for cancers. Furthermore, it is worth noting that progresses have been made in understanding the functional involvement of ncRNAs in Bcr-Abl-induced chronic myeloid leukemia (CML). Here, we highlight the pathogenesis of CML, functional significance of miRs and lncRNAs in regulation of CML development and involved mechanisms underlying their action.