The distribution of a dopamine D2 receptor mRNA in rat brain
- 14 August 1989
- journal article
- Published by Wiley in FEBS Letters
- Vol. 253 (1-2) , 207-213
- https://doi.org/10.1016/0014-5793(89)80960-3
Abstract
Based on the recently reported sequence of a dopamine D2 receptor cloned from rat brain, we prepared a series of cDNA probes to determine the distribution of mRNA encoding this receptor. Within the forebrain, D2 receptor mRNA is abundant in the caudate-putamen, accumbens nucleus and olfactory tubercle. Moderate to low levels of mRNA are observed in the medial habenular nucleus, diagonal band, lateral septal nucleus, claustrum, dorsal endopiriform nucleus, and entorhinal cortex. In the mesencephalon, D2 receptor mRNA is abundant within the substantia nigra, pars compacta, and the ventral tegmental area. Comparison of the distributions of the mRNA and ligand binding indicates that both presynaptic and postsynaptic D2 receptors of the nigrostriatal, mesolimbic and mesocortical pathways are derived from the same mRNA.Keywords
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