[EN] SMALL MOLECULE MODIFIERS OF MICRORNA MIR-122<br/>[FR] MODIFICATEURS À PETITE MOLÉCULE DE MICROARN MIR-122
申请人:UNIV NORTH CAROLINA STATE
公开号:WO2011091209A1
公开(公告)日:2011-07-28
MicroRNAs are a class of endogenous regulators of gene function. Aberrant regulation of microRNAs has been linked to various human diseases, most importantly cancer. Small molecule intervention of microRNA misregulation has the potential to provide new therapeutic approaches to such diseases. microRNA miR-122 is the most abundant microRNA in the liver and is involved in hepatocellular carcinoma development and hepatitis C virus (HCV) infection. Small molecule inhibitors and activators of the microRNA miR-122 are described, and methods for their identification are reported. These small molecule inhibitors reduce viral replication in liver cells and thus represent a new approach to the treatment of HCV infections. Moreover, small molecule activation of miR-122 in liver cancer cells selectively induced apoptosis through caspase activation, and thus has implications in cancer chemotherapy.
微小RNA是一类内源性基因功能调节因子。微小RNA的异常调节与各种人类疾病有关,尤其是癌症。对微小RNA的小分子干预可能为这些疾病提供新的治疗途径。微小RNA miR-122是肝脏中最丰富的微小RNA,参与了肝细胞癌和丙型肝炎病毒(HCV)感染的发展。描述了微小RNA miR-122的小分子抑制剂和激活剂,并报告了其鉴定方法。这些小分子抑制剂可以减少肝细胞中的病毒复制,因此代表了治疗HCV感染的新方法。此外,在肝癌细胞中通过小分子激活miR-122可选择性诱导凋亡,通过激活半胱氨酸蛋白酶而在癌症化疗中具有重要意义。