Dysregulation of synaptic transcripts underlies network abnormalities in ALS patient-derived motor neurons
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RNA-sequencing of ALS patient-derived motor neurons revealed altered expression of genes involved in cell adhesion, neurite outgrowth, synaptic development and maintenance, and synaptic plasticity. These alterations were accompanied by time-dependent structural impairments and disrupted neuronal activity, suggesting that early synaptic changes and network-wide structural and functional compensations contribute to motor neuron vulnerability in ALS.
