Spinal muscular atrophy: An update on therapeutic progress

[摘要] Humans have two nearly identical copies of survival motor neuron gene: SMN1 and SMN2. Deletion or mutation of SMN1 combined with the inability of SMN2 to compensate for the loss of SMN1 results in spinal muscular atrophy (SMA), a leading genetic cause of infant mortality. SMA affects 1 in similar to 6000 live births, a frequency much higher than in several genetic diseases. The major known defect of SMN2 is the predominant exon 7 skipping that leads to production of a truncated protein (SMN Delta 7), which is Unstable. Therefore, SMA has emerged as a model genetic disorder in which almost the entire disease population could be linked to the aberrant splicing of a single exon (i.e. SMN2 exon 7). Diverse treatment strategies aimed at improving the function of SMN2 have been envisioned. These strategies include, but are not limited to, manipulation of transcription, correction of aberrant splicing and stabilization of mRNA, SMN and SMN Delta 7. This review summarizes up to date progress and promise of various in vivo studies reported for the treatment of SMA. (C) 2013 Elsevier B.V. All rights reserved.

[发布日期] 2013-12-01

[关键词] Spinal muscular atrophy;Survival motor neuron;Antisense oligonucleotide;Splicing;SMA therapeutics;Genetic disease therapy