NVS-SM1
is a highly potent, selective and orally active small molecule SMN2 splicing
modulator enhancing SMN exon 7 inclusion with EC50 ~20 nM. It elevates
full-length SMN protein and extends survival in a severe Spinal Muscular
Atrophy (SMA) mouse model. The molecular mechanism of action for NVS-SM1 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. This new mechanism demonstrates
the feasibility of small molecule-mediated, sequence-selective splice
modulation and the potential for leveraging this strategy in other splicing
diseases. Currently NVS-SM1 is in phase I clinical trial for treatment of type
I SMA
How to Use:
In vitro:?NVS-SM1 was used at 0.1-1 μM final concentration in
vitro and in cellular assays.?
In vivo:?NVS-SM1 was dose to C/+ SMA mouse model by oral
administration at 1-3 mg/kg once per day.?
References:?
1. Palacino J, et al. SMN2 splice modulators enhance
U1-pre-mRNA association and rescue SMA mice. (2015) Nat Chem Biol. 11(7):511-7.
Products are for research use only. Not for human use.