In molecular biology, mir-145 microRNA is a short RNA molecule that in humans is encoded by the MIR145 gene. MicroRNAs function to regulate the expression levels of other genes by several mechanisms.[3]

Targets

MicroRNAs are involved in down-regulation of a variety of target genes. Götte et al. have shown that experimental over-expression of mir-145 down-regulates the junctional cell adhesion molecule JAM-A as well as the actin bundling protein fascin in breast cancer and endometriosis cells, resulting in a reduction of cell motility.[4][5] Larsson et al.[6] showed that miR-145 targets the 3' UTR of the FLI1 gene, a finding that was later supported by Zhang et al.[7]

Role in cancer

miR-145 is hypothesised to be a tumor suppressor.[8] miR-145 has been shown to be down-regulated in breast cancer.[5] miR-145 is also involved in colon cancer[7][9][10] and acute myeloid leukemia.[11]

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000276365 – Ensembl, May 2017
  2. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  3. ^ "Entrez Gene: MicroRNA 145". Retrieved 2015-01-26.
  4. ^ Adammek M (2013). "MicroRNA miR-145 inhibits proliferation, invasiveness, and stem cell phenotype of an in vitro endometriosis model by targeting multiple cytoskeletal elements and pluripotency factors". Fertility and Sterility. 99 (5): 1346–1355.e5. doi:10.1016/j.fertnstert.2012.11.055. PMID 23312222.
  5. ^ a b Götte M, Mohr C, Koo CY, et al. (Dec 2010). "miR-145-dependent targeting of junctional adhesion molecule A and modulation of fascin expression are associated with reduced breast cancer cell motility and invasiveness". Oncogene. 29 (50): 6569–80. doi:10.1038/onc.2010.386. PMID 20818426. S2CID 11455884.
  6. ^ Larsson E, Fredlund Fuchs P, Heldin J, et al. (2009). "Discovery of microvascular miRNAs using public gene expression data: miR-145 is expressed in pericytes and is a regulator of Fli1". Genome Medicine. 1 (11): 108. doi:10.1186/gm108. PMC 2808743. PMID 19917099.
  7. ^ a b Zhang J, Guo H, Zhang H, et al. (Jan 2011). "Putative tumor suppressor miR-145 inhibits colon cancer cell growth by targeting oncogene Friend leukemia virus integration 1 gene". Cancer. 117 (1): 86–95. doi:10.1002/cncr.25522. PMC 2995010. PMID 20737575.
  8. ^ Sachdeva M, Zhu S, Wu F, et al. (Mar 2009). "p53 represses c-Myc through induction of the tumor suppressor miR-145". Proceedings of the National Academy of Sciences of the United States of America. 106 (9): 3207–12. Bibcode:2009PNAS..106.3207S. doi:10.1073/pnas.0808042106. PMC 2651330. PMID 19202062.
  9. ^ Slaby O, Svoboda M, Fabian P, et al. (2007). "Altered expression of miR-21, miR-31, miR-143 and miR-145 is related to clinicopathologic features of colorectal cancer". Oncology. 72 (5–6): 397–402. doi:10.1159/000113489. PMID 18196926. S2CID 207615720.
  10. ^ Mazza T, Mazzoccoli G, Fusilli C, et al. (2016-05-19). "Multifaceted enrichment analysis of RNA-RNA crosstalk reveals cooperating micro-societies in human colorectal cancer". Nucleic Acids Research. 44 (9): 4025–4036. doi:10.1093/nar/gkw245. ISSN 1362-4962. PMC 4872111. PMID 27067546.
  11. ^ Starczynowski DT, Morin R, McPherson A, et al. (Jan 2011). "Genome-wide identification of human microRNAs located in leukemia-associated genomic alterations". Blood. 117 (2): 595–607. doi:10.1182/blood-2010-03-277012. PMID 20962326.

Further reading

Allikas: http://en.wikipedia.org/wiki/Mir-145
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