An in vitro method for generating neurons through differentiation of human pluripotent or multipotent cells, said neurons comprising one or more markers indicating a preoptic cholinergic neuron, a pre-optic cholinergic neuron precursor, a cortical interneuron, a cortical interneuron precursor, a hypothalamic neuron or a hypothalamic neuron precursor, the method comprising:
- a. contacting one or more starting cells selected from the group consisting of pluripotent cells, multipotent cells and mixtures thereof with at least one and preferably two inhibitors of SMAD and with at least one Wnt antagonist to favor generation of neuronal precursors from said pluripotent or multipotent cells or mixtures thereof;
- b. after the passage of a predetermined period of time, contacting the neuronal precursors with at least one activator of SHH signaling to favor generation from said precursors of neurons having at least one marker indicating a pre-optic cholinergic neuron, a pre-optic cholinergic neuron precursor, a cortical interneuron, a cortical interneuron precursor, a hypothalamic neuron or a hypothalamic neuron precursor;
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- c. optionally subjecting said generated pre-optic cholinergic neurons, pre-optic cholinergic neuron precursors, cortical interneurons, cortical interneuron precursors, hypothalamic neurons, or hypothalamic neuron precursors to conditions favoring their maturation.