MicroRNAs (miRNAs) are small non-coding RNAs that regulate gene expression post-transcriptionally. They have been
found to be dysregulated in many pathological conditions including cancer and play an important role during the progression of such disease.
Recent efforts have been directed in translating the primary findings of miRNAs into clinical uses. This article gives a general overview
on the potential of miRNAs as diagnostic and prognostic markers and also as therapeutic targets for gastrointestinal and liver cancers
in animals and humans. Other contributors in this special series would focus in discussing the roles of specific miRNAs and their
pathogenic mechanisms and therapeutic applications in different types of cancer in the gastrointestinal tract and liver.
Keywords: miRNA, gastrointestinal cancer, liver cancer, small non-coding RNAs, gene expression, clinical uses, prognostic markers, therapeutic targets, animals, humans
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