title: Non-coding RNAs in cancer initiation and progression and as novel biomarkers.
abstract: Cancer represents a complex group of heterogeneous diseases. While many cancers share fundamental biological processes (hallmarks of cancer) necessary for their development and progression, cancers also distinguish themselves by their dependence on distinct oncogenic pathways. Over the last decade, targeted therapies have been introduced to the clinic with variable success. In truth, single targeted therapies may be successful in only a subset of malignancies but insufficient to address malignancies that often rely on multiple pathways, thus evading single targeted agents. Investigators have recently identified potentially functional components of the human genome that were previously thought to have no biological function. This discovery has added to the already established complexity of gene regulation in the pathogenesis of cancer. Non-coding RNAs represent key regulators of gene expression. Improved knowledge of their biogenesis and function may in turn lead to a better understanding of the heterogeneity of malignancies and eventually be leveraged as diagnostic, prognostic and therapeutic targets. MicroRNAs (miRNAs or miRs) for example, have the capacity for the regulation of multiple genes and thus redirection or reprogramming of biological pathways. However, several other members of the non-coding RNA family may be of equal biological relevance. In this review, we provide a perspective on emerging concepts in the clinical application of miRNA and other non-coding RNAs as biomarkers in cancer with an eye on the eventual integration of both miRNA and other non-coding RNA biology into our understanding of cancer pathogenesis and treatment.
authors.affiliation: Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, The Ohio State University, Columbus, OH 43210, USA. Patrick.Nana-Sinkam@osumc.du
authors.forename: S Patrick
authors.initials: SP
authors.lastname: Nana-Sinkam
authors.forename: Carlo M
authors.initials: CM
authors.lastname: Croce
mesh_terms: D000818:Animals; D014408:Biomarkers, Tumor / Q000235:genetics* / Q000378:metabolism; D018450:Disease Progression; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D035683:MicroRNAs / Q000235:genetics / Q000378:metabolism; D009369:Neoplasms / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D022661:RNA, Untranslated / Q000235:genetics* / Q000378:metabolism
chemical_list: D014408:Biomarkers, Tumor; D035683:MicroRNAs; D022661:RNA, Untranslated
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