RG3039 is an inhibitor of mRNA decapping scavenger enzyme (DcpS; IC50 = 0.069 nM).1 It prevents denervation of the neuromuscular junction (NMJ) and decreases in NMJ synaptic transmission and myofiber size of the longissimus muscle in a mouse model of spinal muscular atrophy (SMA) induced by knockout of the gene encoding survival motor neuron 1 (Smn1) when administered at a dose of 10 mg/kg.2 RG3039 improves survival and motor function in the same model.
1.Gopalsamy, A., Narayanan, A., Liu, S., et al.Design of potent mRNA decapping scavenger enzyme (DcpS) inhibitors with improved physicochemical properties to investigate the mechanism of therapeutic benefit in spinal muscular atrophy (SMA)J. Med. Chem.60(7)3094-3108(2017) 2.Van Meerbeke, J.P., Gibbs, R.M., Plasterer, H.L., et al.The DcpS inhibitor RG3039 improves motor function in SMA miceHum. Mol. Genet.22(20)4074-4083(2013)
















