Dynamic Combinatorial Selection of Molecules Capable of Inhibiting the (CUG) Repeat RNA−MBNL1 Interaction In Vitro: Discovery of Lead Compounds Targeting Myotonic Dystrophy (DM1)
作者:Peter C. Gareiss、Krzysztof Sobczak、Brian R. McNaughton、Prakash B. Palde、Charles A. Thornton、Benjamin L. Miller
DOI:10.1021/ja804398y
日期:2008.12.3
repeat RNA. Screening an RBDCL with a theoretical diversity of 11 325 members yielded several molecules with significant selectivity for binding to (CUG) repeat RNA over other sequences. These compounds were also able to inhibit the interaction of GGG-(CUG)(109)-GGG RNA with MBNL1 in vitro, with K(i) values in the low micromolar range.
强直性肌营养不良 1 型 (DM1) 是成人肌营养不良最常见的形式,是一种 RNA 介导的疾病。显着扩增 (CUG) 重复序列在细胞核中积累,并隔离 RNA 结合蛋白,例如剪接调节因子 MBNL1。我们采用树脂结合动态组合化学 (RBDCC) 来鉴定能够抑制 MBNL1 与 (CUG) 重复 RNA 结合的化合物的第一个例子。筛选理论多样性为 11 325 个成员的 RBDCL 产生了几种分子,与其他序列相比,对 (CUG) 重复 RNA 的结合具有显着的选择性。这些化合物还能够在体外抑制 GGG-(CUG)(109)-GGG RNA 与 MBNL1 的相互作用,K(i) 值在低微摩尔范围内。