| Bioactivity | NVS-SM2 is a potent, orally active and brain-penetrant SMN2 splicing enhancer with an EC50 of 2 nM for SMN. NVS-SM2 enhances U1-pre-mRNA association. NVS-SM2 promotes exon 7 inclusion and restores normal survival motor neuron (SMN) protein expression. NVS-SM2 can be used for spinal muscular atrophy (SMA) research[1][2]. | |||||||||
| Target | EC50: 5 nM (SMN) | |||||||||
| Invitro | For NVS-SM2, the molecular mechanism of action is via stabilization of the transient double-strand RNA structure formed by the SMN2 pre-mRNA and U1 small nuclear ribonucleic protein (snRNP) complex. The binding affinity of U1 snRNP to the 5' splice site is increased in a sequence-selective manner, discrete from constitutive recognition[1]. | |||||||||
| In Vivo | NVS-SM2 (0.1-1 mg/kg; s.c.; for 30 days) treatment extends survival in a severe SMA mouse model[2]. Pharmacokinetic analysis demonstrate that NVS-SM2 is readily available in the brain after IV and oral (PO) administration in mouse and rat with Tmax of 3 h after PO with 3 mg/kg in mice, and NVS-SM2 treatment induces a 1.5-fold increase in SMN protein levels in the mouse brain[1]. Animal Model: | |||||||||
| Name | NVS-SM2 | |||||||||
| CAS | 1562333-92-9 | |||||||||
| Formula | C23H30N6O | |||||||||
| Molar Mass | 406.52 | |||||||||
| Appearance | Solid | |||||||||
| Transport | Room temperature in continental US; may vary elsewhere. | |||||||||
| Storage |
|
|||||||||
| Reference | [1]. James Palacino, et al. SMN2 splice modulators enhance U1-pre-mRNA association and rescue SMA mice. Nat Chem Biol. 2015 Jul;11(7):511-7. [2]. Anne Rietz, et al. Short-duration splice promoting compound enables a tunable mouse model of spinal muscular atrophy. Life Sci Alliance. 2020 Nov 24;4(1):e202000889. |