Vesicular glutamate transporter 3 (VGLUT3) identifies spatially segregated excitatory terminals in the rat substantia nigra

The European journal of neuroscience

The excitability of dopaminergic (DA) neurons in the substantia nigra is controlled by the convergent activity of multiple glutamatergic afferents. Here, we show that vesicular glutamate transporter 3 (VGLUT3)-immunoreactive (ir) terminals segregate to the perisomatic region of DA neurons in the substantia nigra pars compacta, and VGLUT3 decorates a synapse population distinct from those marked by vesicular glutamate transporters 1 and 2. VGLUT3-ir nerve endings form asymmetric terminals on DA…

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