| Bioactivity | Tofersen (BIIB067) is an antisense oligonucleotide that mediates RNase H-dependent degradation of superoxide dismutase 1 (SOD1) mRNA to reduce the synthesis of SOD1 protein. Tofersen can be used for the research of amyotrophic lateral sclerosis (ALS)[1]. |
| Invitro | Tofersen targets the SOD1 mRNA using antisense oligonucleotides (ASOs) that bind to the SOD1 mRNA by Watson-Crick base pairing. Tofersen activates RNase H1 that destroys the targeted RNA[2]. |
| Name | Tofersen |
| CAS | 2088232-70-4 |
| Molar Mass | 7128.00 |
| Appearance | Solid |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | -20°C, stored under nitrogen, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen, away from moisture) |
| Reference | [1]. Miller T, et, al. Phase 1-2 Trial of Antisense Oligonucleotide Tofersen for SOD1 ALS. N Engl J Med. 2020 Jul 9;383(2):109-119. [2]. McCampbell A, et, al. Antisense oligonucleotides extend survival and reverse decrement in muscle response in ALS models. J Clin Invest. 2018 Aug 1;128(8):3558-3567. |