Durability is unknown; follow-up is typically ≤12 months and sparse. SMA is genetic and progressive, so sustained benefit without correcting the SMN deficiency is biologically unlikely. Gene therapy shows durable improvement through genetic correction; stem cells alone have not demonstrated comparable long-term neuroprotection. Repeated infusions might be needed, but no data support this.
Spinal Muscular Atrophy is a genetic neuromuscular disorder caused by SMN1 mutations, leading to insufficient survival motor neuron protein and progressive motor-neuron loss and muscle atrophy. Stem-cell research explores neurogenic cells to support or replace motor neurons and placental mesenchymal stem cells to secrete neuroprotective factors and reduce neuroinflammation. Because SMA is genetic, cellular approaches that do not correct the underlying SMN deficiency may offer limited long-term benefit. This distinguishes SMA from acquired disorders, and helps explain why approved gene-targeted therapies dominate care. Trials are very few; reported outcomes focus on motor-function stabilisation rather than recovery.
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Revizuit medical de echipa editorială a StemCellAtlas cu Kiian Nadiia, MD, PhD (Paediatric Neurologist · Medical Director, CSM Clinic Network · 12+ yrs in Autism Spectrum Disorders) ale clinicii partenere Stem Plus (Sofia), în funcție de orientările ISSCR, FDA și EMA. Educational information, not medical advice; figures indicative.
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