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.[1]
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.[2] Larsson et al.[3] showed that miR-145 targets the 3' UTR of the FLI1 gene, a finding that was later supported by Zhang et al.[4]
↑ 2.02.1Götte M, Mohr C, Koo CY, Stock C, Vaske AK, Viola M, Ibrahim SA, Peddibhotla S, Teng YH, Low JY, Ebnet K, Kiesel L, Yip GW (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. PMID20818426.
↑Slaby O, Svoboda M, Fabian P, Smerdova T, Knoflickova D, Bednarikova M, Nenutil R, Vyzula R (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. PMID18196926.
Kano M, Seki N, Kikkawa N, Fujimura L, Hoshino I, Akutsu Y, Chiyomaru T, Enokida H, Nakagawa M, Matsubara H (Dec 2010). "miR-145, miR-133a and miR-133b: Tumor-suppressive miRNAs target FSCN1 in esophageal squamous cell carcinoma". International Journal of Cancer. 127 (12): 2804–14. doi:10.1002/ijc.25284. PMID21351259.
Ostenfeld MS, Bramsen JB, Lamy P, Villadsen SB, Fristrup N, Sørensen KD, Ulhøi B, Borre M, Kjems J, Dyrskjøt L, Orntoft TF (Feb 2010). "miR-145 induces caspase-dependent and -independent cell death in urothelial cancer cell lines with targeting of an expression signature present in Ta bladder tumors". Oncogene. 29 (7): 1073–84. doi:10.1038/onc.2009.395. PMID19915607.
Starczynowski DT, Kuchenbauer F, Argiropoulos B, Sung S, Morin R, Muranyi A, Hirst M, Hogge D, Marra M, Wells RA, Buckstein R, Lam W, Humphries RK, Karsan A (Jan 2010). "Identification of miR-145 and miR-146a as mediators of the 5q- syndrome phenotype". Nature Medicine. 16 (1): 49–58. doi:10.1038/nm.2054. PMID19898489.
Cho WC, Chow AS, Au JS (Aug 2009). "Restoration of tumour suppressor hsa-miR-145 inhibits cancer cell growth in lung adenocarcinoma patients with epidermal growth factor receptor mutation". European Journal of Cancer. 45 (12): 2197–206. doi:10.1016/j.ejca.2009.04.039. PMID19493678.
Xu N, Papagiannakopoulos T, Pan G, Thomson JA, Kosik KS (May 2009). "MicroRNA-145 regulates OCT4, SOX2, and KLF4 and represses pluripotency in human embryonic stem cells". Cell. 137 (4): 647–58. doi:10.1016/j.cell.2009.02.038. PMID19409607.
La Rocca G, Badin M, Shi B, Xu SQ, Deangelis T, Sepp-Lorenzinoi L, Baserga R (Aug 2009). "Mechanism of growth inhibition by MicroRNA 145: the role of the IGF-I receptor signaling pathway". Journal of Cellular Physiology. 220 (2): 485–91. doi:10.1002/jcp.21796. PMID19391107.
Wang S, Bian C, Yang Z, Bo Y, Li J, Zeng L, Zhou H, Zhao RC (May 2009). "miR-145 inhibits breast cancer cell growth through RTKN". International Journal of Oncology. 34 (5): 1461–6. doi:10.3892/ijo_00000275. PMID19360360.
Zheng L, Pu J, Qi T, Qi M, Li D, Xiang X, Huang K, Tong Q (Feb 2013). "miRNA-145 targets v-ets erythroblastosis virus E26 oncogene homolog 1 to suppress the invasion, metastasis, and angiogenesis of gastric cancer cells". Molecular Cancer Research. 11 (2): 182–93. doi:10.1158/1541-7786.MCR-12-0534. PMID23233482.