MicroRNAs in chronic lymphocytic leukemia.

Brian P Ward1, Gregory J Tsongalis, Prabhjot Kaur

  • 1Department of Pathology, Dartmouth Hitchcock Medical Center, Lebanon, NH, USA.

Summary

MicroRNAs (miRNAs) show promise as biomarkers for chronic lymphocytic leukemia (CLL). Differences in miRNA expression in CLL patients suggest their role in disease pathogenesis and prognosis, offering new diagnostic potential.

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MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
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MicroRNAs

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