Spinal muscular atrophy (SMA) is a severe childhood disease caused by mutations in the SMN1 gene, and current treatments are ineffective; researchers are exploring antisense oligonucleotides (ASOs) to enhance SMN2 function instead.
The study focused on a specific 25-nucleotide morpholino oligomer (MO) that targets the ISS-N1 region of the SMN2 gene, testing various injection methods and dosages in an SMA mouse model.
Results showed that this MO sequence significantly improved survival and reduced disease symptoms compared to previous options, suggesting that MO-based therapies could be a promising approach for treating SMA.