Dissociable control of motivation and reinforcement by distinct ventral striatal dopamine receptors

Dopamine (DA) release in striatal circuits, including the nucleus accumbens medial shell (mNAcSh), tracks separable features of reward like motivation and reinforcement. However, the cellular and circuit mechanisms by which DA receptors transform DA release into distinct constructs of reward remain...

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Detalles Bibliográficos
Autores: Enriquez-Traba, Juan, Arenivar, Miguel, Yarur-Castillo, Hector E, Noh, Chloe, Flores, Rodolfo J, Weil, Tenley, Roy, Snehashis, Usdin, Ted B, LaGamma, Christina T, Wang, Huikun, Tsai, Valerie S, Kerspern, Damien, Moritz, Amy E, Sibley, David R, Lutas, Andrew, Moratalla, Rosario, Freyberg, Zachary, Tejeda, Hugo A
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/403810
Acceso en línea:http://hdl.handle.net/10261/403810
https://api.elsevier.com/content/abstract/scopus_id/85211921464
Access Level:acceso abierto
Palabra clave:http://metadata.un.org/sdg/3
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Descripción
Sumario:Dopamine (DA) release in striatal circuits, including the nucleus accumbens medial shell (mNAcSh), tracks separable features of reward like motivation and reinforcement. However, the cellular and circuit mechanisms by which DA receptors transform DA release into distinct constructs of reward remain unclear. Here we show that DA D3 receptor (D3R) signaling in the mNAcSh drives motivated behavior in mice by regulating local microcircuits. Furthermore, D3Rs coexpress with DA D1 receptors, which regulate reinforcement, but not motivation. Paralleling dissociable roles in reward function, we report nonoverlapping physiological actions of D3R and DA D1 receptor signaling in mNAcSh neurons. Our results establish a fundamental framework wherein DA signaling within the same nucleus accumbens cell type is physiologically compartmentalized via actions on distinct DA receptors. This structural and functional organization provides neurons in a limbic circuit with the unique ability to orchestrate dissociable aspects of reward-related behaviors relevant to the etiology of neuropsychiatric disorders.

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