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Nigrostriatal and ventral tegmental area (VTA) midbrain dopamine neurons innervate regions adjacent to the SVZ, and dopamine synapses are found on SVZ cells. Cell division within the SVZ is decreased in humans with Parkinson's disease and in animal models of Parkinson's disease following exposure to toxins that selectively remove nigrostriatal neurons, suggesting that dopamine is critical for SVZ function and nigrostriatal neurons are the main suppliers of SVZ dopamine. However, when we examined the<jats:italic>aphakia<\/jats:italic>mouse, which is deficient in nigrostriatal neurons, we found no detrimental effect to SVZ proliferation or organization. Instead, dopamine innervation of the SVZ tracked to neurons at the ventrolateral boundary of the VTA. This same dopaminergic neuron population also innervated the SVZ of control mice. Characterization of these neurons revealed expression of proteins indicative of VTA neurons. Furthermore, exposure to the neurotoxin MPTP depleted neurons in the ventrolateral VTA and resulted in decreased SVZ proliferation. Together, these results reveal that dopamine signaling in the SVZ originates from a population of midbrain neurons more typically associated with motivational and reward processing.<\/jats:p>","DOI":"10.1523\/jneurosci.1197-11.2011","type":"journal-article","created":{"date-parts":[[2011,9,15]],"date-time":"2011-09-15T03:39:41Z","timestamp":1316057981000},"page":"13078-13087","source":"Crossref","is-referenced-by-count":45,"title":["Midbrain Dopamine Neurons Associated with Reward Processing Innervate the Neurogenic Subventricular Zone"],"prefix":"10.1523","volume":"31","author":[{"given":"Jessica B.","family":"Lennington","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sara","family":"Pope","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anna 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