In molecular biology, H ighly U p-regulated in L iver C ancer (non-protein coding) , also known as HULC , is a long non-coding RNA . It was first identified in hepatocellular carcinoma , and is also expressed in colorectal carcinomas that metastasise to the liver . It may have a role in the post-transcriptional regulation of gene expression . It downregulates the expression of several microRNAs , including miR-372 . Expression of HULC is upregulated by CREB , there is a CREB-binding site in the promoter of HULC. miR-372 represses translation of the kinase PRKACB , so downregulation of miR-372 leads to increased levels of PRKACB. PRKACB activates CREB by phosphorylation , therefore leading to increased expression of HULC.
See also
References
"Human PubMed Reference:" . National Center for Biotechnology Information, U.S. National Library of Medicine .
^ Panzitt K, Tschernatsch MM, Guelly C, Moustafa T, Stradner M, Strohmaier HM, Buck CR, Denk H, Schroeder R, Trauner M, Zatloukal K (Jan 2007). "Characterization of HULC, a novel gene with striking up-regulation in hepatocellular carcinoma, as noncoding RNA" . Gastroenterology . 132 (1): 330–342. doi :10.1053/j.gastro.2006.08.026 . PMID 17241883 .
Matouk IJ, Abbasi I, Hochberg A, Galun E, Dweik H, Akkawi M (Jun 2009). "Highly upregulated in liver cancer noncoding RNA is overexpressed in hepatic colorectal metastasis". European Journal of Gastroenterology & Hepatology . 21 (6): 688–692. doi :10.1097/meg.0b013e328306a3a2 . PMID 19445043 . S2CID 39245106 .
^ Wang J, Liu X, Wu H, Ni P, Gu Z, Qiao Y, Chen N, Sun F, Fan Q (Sep 2010). "CREB up-regulates long non-coding RNA, HULC expression through interaction with microRNA-372 in liver cancer" . Nucleic Acids Research . 38 (16): 5366–5383. doi :10.1093/nar/gkq285 . PMC 2938198 . PMID 20423907 .
Further reading
Li D, Song YM, Zhan QM (Nov 2010). "". Zhonghua Yi Xue Za Zhi . 90 (44): 3156–3159. PMID 21211351 .
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