Two breakthrough gene-targeted treatments for spinal muscular atrophy: challenges remain

Abstract excerpt

The motor neuron disease spinal muscular atrophy (SMA) is caused by recessive, loss-of-function mutations of the survival motor neuron 1 gene (SMN1). Alone, such mutations are embryonically lethal, but SMA patients retain a paralog gene, SMN2, that undergoes alternative pre-mRNA splicing, producing low levels of SMN protein. By mechanisms that are not well understood, reduced expression of the ubiquitously...

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• Congenital Anomalies and Fetal Surgery
• Neurogenetic and Muscular Disorders Research
• RNA modifications and cancer