Ulefnersen sodium (ION363) is an Antisense Oligonucleotide (ASO) directed against the 6th intron of the fused-in sarcoma (FUS) transcript to silence FUS in a non-allele-specific manner. Ulefnersen sodium can reduce postnatal levels of FUS protein in the brain and spinal cord in disease-relevant mouse model of ALS-FUS , delaying motor neuron degeneration. Ulefnersen sodium can be used in the research of Amyotrophic Lateral Sclerosis (ALS) [1].
References:
[1]. Korobeynikov VA, Lyashchenko AK, Blanco-Redondo B, Jafar-Nejad P, Shneider NA. Antisense oligonucleotide silencing of FUS expression as a therapeutic approach in amyotrophic lateral sclerosis. Nat Med. 2022;28(1):104-116.