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Artículo

Neurotensin orchestrates valence assignment in the amygdala

Li, Hao; Namburi, Praneeth; Olson, Jacob M.; Borio, Matilde; Lemieux, Mackenzie E.; Beyeler, Anna; Calhoon, Gwendolyn G.; Hitora Imamura, Natsuko; Coley, Austin A.; Libster, Avraham; Bal, Aneesh; Jin, Xin; Wang, Huan; Jia, Caroline; Choudhury, Sourav R.; Shi, Xi; Felix Ortiz, Ada C.; de la Fuente, VerónicaIcon ; Barth, Vanessa P.; King, Hunter O.; Izadmehr, Ehsan M.; Revanna, Jasmin S.; Batra, Kanha; Fischer, Kyle B.; Keyes, Laurel R.; Padilla-Coreano, Nancy; Siciliano, Cody A.; McCullough, Kenneth M.; Wichmann, Romy; Ressler, Kerry J.; Fiete, Ila R.; Zhang, Feng; Li, Yulong; Tye, Kay M.
Fecha de publicación: 08/2022
Editorial: Nature Publishing Group
Revista: Nature
ISSN: 0028-0836
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

The ability to associate temporally segregated information and assign positive or negative valence to environmental cues is paramount for survival. Studies have shown that different projections from the basolateral amygdala (BLA) are potentiated following reward or punishment learning1–7. However, we do not yet understand how valence-specific information is routed to the BLA neurons with the appropriate downstream projections, nor do we understand how to reconcile the sub-second timescales of synaptic plasticity8–11 with the longer timescales separating the predictive cues from their outcomes. Here we demonstrate that neurotensin (NT)-expressing neurons in the paraventricular nucleus of the thalamus (PVT) projecting to the BLA (PVT-BLA:NT) mediate valence assignment by exerting NT concentration-dependent modulation in BLA during associative learning. We found that optogenetic activation of the PVT-BLA:NT projection promotes reward learning, whereas PVT-BLA projection-specific knockout of the NT gene (Nts) augments punishment learning. Using genetically encoded calcium and NT sensors, we further revealed that both calcium dynamics within the PVT-BLA:NT projection and NT concentrations in the BLA are enhanced after reward learning and reduced after punishment learning. Finally, we showed that CRISPR-mediated knockout of the Nts gene in the PVT-BLA pathway blunts BLA neural dynamics and attenuates the preference for active behavioural strategies to reward and punishment predictive cues. In sum, we have identified NT as a neuropeptide that signals valence in the BLA, and showed that NT is a critical neuromodulator that orchestrates positive and negative valence assignment in amygdala neurons by extending valence-specific plasticity to behaviourally relevant timescales.
Palabras clave: NEUROTENSIN , VALENCE , AMYGDALA
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/215734
DOI: http://dx.doi.org/10.1038/s41586-022-04964-y
URL: https://www.nature.com/articles/s41586-022-04964-y
Colecciones
Articulos(IFIBYNE)
Articulos de INST.DE FISIOL., BIOL.MOLECULAR Y NEUROCIENCIAS
Citación
Li, Hao; Namburi, Praneeth; Olson, Jacob M.; Borio, Matilde; Lemieux, Mackenzie E.; et al.; Neurotensin orchestrates valence assignment in the amygdala; Nature Publishing Group; Nature; 608; 7923; 8-2022; 586-592
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