Motor neuron replacement

Motor neuron replacement refers to a biomedical strategy for treating neurodegenerative diseases by introducing new motor neurons into the brain or spinal cord. These replacement neurons are typically derived from stem cells (embryonic, induced pluripotent, mesenchymal, or neural stem cells) and are implanted to restore functions lost from neuronal degeneration. The method can improve muscle strength, voluntary movement, and quality of life, and relies on promoting the growth of new neurons, protection of existing neurons, and delivery of neurotrophic factors. It is an area of preclinical and clinical research rather than a defined molecular target, and involves significant immunological and technical challenges including graft survival and integration, immune response, and efficacy monitoring

Other names

Motor neuron regenerationMotor neuron therapyMotor neuron transplantation

Replacement of lost/damaged motor neurons using stem cell-derived motor neurons; Gene editing/correction of genetic defects in endogenous or transplanted neurons; Secretion of neurotrophic and anti-inflammatory factors by stem cells (e.g., BDNF, GDNF, IGF-1, VEGF)