Specific Correction of Alternative Survival Motor Neuron 2 Splicing by Small Molecules: Discovery of a Potential Novel Medicine To Treat Spinal Muscular Atrophy
摘要:
Spinal muscular atrophy (SMA) is the leading genetic cause of infant and toddler mortality, and there is currently no approved therapy available. SMA is caused by mutation or deletion of the survival motor neuron 1 (SMN1) gene. These mutations or deletions result in low levels of functional SMN protein. SMN2, a paralogous gene to SMN1, undergoes alternative splicing and exclusion of exon 7, producing an unstable, truncated SMI\T07 protein. Herein, we report the identification of a pyridopyrimidinone series of small molecules that modify the alternative splicing of SMN2, increasing the production of fulllength SMN2 mRNA. Upon oral administration of our small molecules, the levels of fulllength SMN protein were restored in two mouse models of SMA. In-depth lead optimization in the pyridopyrimidinone series culminated in the selection of compound 3 (RG7800), the first small molecule SMN2 splicing modifier to enter human clinical trials.
Provided herein are compounds, compositions thereof and uses therewith for treating spinal muscular atrophy.
本文提供了用于治疗脊髓性肌萎缩症的化合物、其组成物和使用方法。
Compounds for treating spinal muscular atrophy
申请人:PTC Therapeutics, Inc.
公开号:US10851101B2
公开(公告)日:2020-12-01
Provided herein are compounds of Formula (I):
and forms thereof, including compositions thereof and uses therewith for treating spinal muscular atrophy.