The invention provides compounds, compositions and therapeutic methods. The compounds and compositions can be used for the treatment of myotonic dystrophy. The compounds can selectively bind to CUG repeats in RNA, or to CTG repeats in DNA, and inhibit replication of the nucleic acids. RNA-targeted therapeutic agents for the treatment of myotonic dystrophy type 1 (DM1) are described. In one embodiment, two bisamidinium ligands are linked using "click" chemistry to form a heterodimer that is a potent inhibitor of the MBNL1 -rCUGexp complex (KI = 25 ± 8 nM), is relatively non-toxic to HeLa cells, dissolves nuclear foci, corrects >80% of the IR misregulated alternative splicing in DM1 model cells (1 μΜ), and shows improvement of disease phenotypes in a DM1 Drosophila model.
该发明提供了化合物、组合物和治疗方法。这些化合物和组合物可用于治疗肌萎缩性肌无力。这些化合物可以选择性地结合到RNA中的CUG重复序列,或者结合到DNA中的CTG重复序列,并抑制核酸的复制。描述了用于治疗肌萎缩性肌无力1型(
DM1)的RNA靶向治疗药物。在一个实施例中,两个双酰胺
配体使用“点击”
化学方法连接起来形成一个异二聚体,它是MBNL1-rCUGexp复合物的有效
抑制剂(KI = 25 ± 8 nM),对HeLa细胞相对无毒,溶解核焦点,在
DM1模型细胞中纠正了80%以上的IR调节错误剪接(1 μΜ),并在
DM1果蝇模型中显示出改善疾病表型的效果。