Target intelligence / Profile preview

Dopaminergic Neuron (A9 Subtype) (A9 DA Neuron)

Target
A9 DA Neuron
Molecular classification
Neuron, Dopaminergic Neuron, Midbrain Neuron
01

Overview

The dopaminergic neuron (A9 subtype) is a large, angular cell type located mainly within the substantia nigra pars compacta. It projects predominantly to dorsal regions of the striatum via the nigrostriatal pathway—a circuit essential for voluntary movement. These cells express markers like TH and GIRK2; they degenerate selectively early during Parkinson's disease progression. Their unique properties make them central both as targets for understanding neurodegeneration mechanisms and as candidates for cell-based restorative therapies aimed at treating PD-related motor deficits.

Other names
Substantia Nigra pars compacta Dopaminergic NeuronNigrostriatal Dopaminergic NeuronA9 Dopamine Neuron
02

Biological functions

Motor controlVoluntary movementDopamine synthesis and releaseStriatal innervation
03

Disease associations

Parkinson's Disease: Selective degenerationMotor dysfunction
04

Safety considerations

Off-target effects of cell replacement therapiesEnsuring authentic A9-type differentiation in cell therapiesGraft survival and integration in cell therapies

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