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entry entitled miR-191. miRBase and Rfam
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miR-191 is a family of microRNA precursors found in mammals, including humans. The ~22 nucleotide mature miRNA sequence is excised from the precursor hairpin by the enzyme Dicer. This sequence then associates with RISC which effects RNA interference.
miR-191 has been found to be dysregulated in a large number of different types of human tumour, including those of colorectal, breast and prostate cancers. Despite these cancer links, target genes of the mature miRNA have not been characterised, and it is not known which factors lead to its dysregulation in certain tumour cells.
The expression profile of miR-191 could be implemented in prognosis of acute myeloid leukaemia, with higher than average levels of miR-191 suggesting a lower survival probability.
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miR-191 is a family of microRNA precursors found in mammals, including humans. The ~22 nucleotide mature miRNA sequence is excised from the precursor hairpin by the enzyme Dicer.[1] This sequence then associates with RISC which effects RNA interference.[2]
miR-191 has been found to be dysregulated in a large number of different types of human tumour, including those of colorectal,[3] breast and prostate cancers.[4] Despite these cancer links, target genes of the mature miRNA have not been characterised, and it is not known which factors lead to its dysregulation in certain tumour cells.[5]
The expression profile of miR-191 could be implemented in prognosis of acute myeloid leukaemia, with higher than average levels of miR-191 suggesting a lower survival probability.[6]
[edit] References
- ^ Ambros, V (2001-12-28). "microRNAs: tiny regulators with great potential.". Cell 107 (7): 823–6. doi:10.1016/S0092-8674(01)00616-X. PMID 11779458.
- ^ Gregory, RI; Chendrimada, TP, Cooch, N, Shiekhattar, R (2005-11-18). "Human RISC couples microRNA biogenesis and posttranscriptional gene silencing.". Cell 123 (4): 631–40. doi:10.1016/j.cell.2005.10.022. PMID 16271387.
- ^ Xi, Y; Formentini, A, Chien, M, Weir, DB, Russo, JJ, Ju, J, Kornmann, M, Ju, J (2006). "Prognostic Values of microRNAs in Colorectal Cancer.". Biomarker insights 2: 113–121. PMC 2134920. PMID 18079988. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2134920.
- ^ Volinia, S; Calin, GA, Liu, CG, Ambs, S, Cimmino, A, Petrocca, F, Visone, R, Iorio, M, Roldo, C, Ferracin, M, Prueitt, RL, Yanaihara, N, Lanza, G, Scarpa, A, Vecchione, A, Negrini, M, Harris, CC, Croce, CM (2006-02-14). "A microRNA expression signature of human solid tumors defines cancer gene targets.". Proceedings of the National Academy of Sciences of the United States of America 103 (7): 2257–61. doi:10.1073/pnas.0510565103. PMC 1413718. PMID 16461460. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1413718.
- ^ Shen, J; DiCioccio, R, Odunsi, K, Lele, SB, Zhao, H (2010-02-18). "Novel genetic variants in miR-191 gene and familial ovarian cancer.". BMC cancer 10: 47. doi:10.1186/1471-2407-10-47. PMC 2831822. PMID 20167074. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2831822.
- ^ Garzon, R; Volinia, S, Liu, CG, Fernandez-Cymering, C, Palumbo, T, Pichiorri, F, Fabbri, M, Coombes, K, Alder, H, Nakamura, T, Flomenberg, N, Marcucci, G, Calin, GA, Kornblau, SM, Kantarjian, H, Bloomfield, CD, Andreeff, M, Croce, CM (2008-03-15). "MicroRNA signatures associated with cytogenetics and prognosis in acute myeloid leukemia.". Blood 111 (6): 3183–9. doi:10.1182/blood-2007-07-098749. PMC 2265455. PMID 18187662. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2265455.
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