SOD1 mutant motor neurons are a critical cellular model for understanding the pathogenesis of familial amyotrophic lateral sclerosis (ALS). Mutations in the SOD1 gene (Cu/Zn superoxide dismutase 1) account for approximately 12-20% of familial ALS cases and have provided invaluable insights into the molecular mechanisms of motor neuron degeneration[1][2].
| Property | Value |
|---|---|
| Category | Disease Model Neurons |
| Location | Spinal cord (model) |
| Cell Types | SOD1 G93A, G37R, G85R, D90A |
| Primary Neurotransmitter | Glutamate |
| Key Markers | SOD1, ChAT, Islet-1, Hb9 |
Over 150 SOD1 mutations have been identified in ALS patients, with the most studied being:
These mutations cause the SOD1 protein to adopt a toxic gain-of-function, leading to motor neuron injury[3].
Several clinical trials have targeted SOD1-ALS:
The study of Sod1 Mutant Motor Neurons has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
Rosen DR, Siddique T, Patterson D, et al. Mutations in Cu/Zn superoxide dismutase gene are associated with familial amyotrophic lateral sclerosis. Nature. 1993;362(6415):59-62. PMID:8446170 ↩︎
Boillé S, Vande Velde C, Cleveland DW. ALS: a disease of motor neurons and their nonneuronal neighbors. Neuron. 2006;52(1):39-59. PMID:17015226 ↩︎
Gurney ME, Pu H, Chiu AY, et al. Motor neuron degeneration in mice that express a human Cu,Zn superoxide dismutase mutation. Science. 1994;264(5166):1772-1775. PMID:8209258 ↩︎
Miller T, Cudkowicz M, Shaw PJ, et al. Phase 1-2 Study of BIIB067 (Tofersen) Targeting SOD1 RNA. N Engl J Med. 2020;383(2):109-119. PMID:32640130 ↩︎