ArticleProceedings of the National Academy of Sciences of the United States of America2024
Activation of CGRP neurons in the parabrachial nucleus suppresses addictive behavior.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- The Anatomical Connections of Nucleus Accumbens with Brainstem and Cerebellum in the Rat and Human Subjects.Cerebellum (London, England) · 2026Article
- Drug-induced changes in connectivity to midbrain dopamine cells revealed by rabies monosynaptic tracing.eLife · 2026Article
- Parabrachial CGRP neurons modulate active defensive behavior under a naturalistic threat.eLife · 2025Article
- A role for the midbrain reticular formation in delay-based decision making.Frontiers in systems neuroscience · 2024Article
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4 authors.
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Abstract
Punishment such as electric shock or physical discipline employs a mixture of physical pain and emotional distress to induce behavior modification. However, a neural circuit that produces behavior modification by selectively focusing the emotional component, while bypassing the pain typically induced by peripheral nociceptor activation, is not well studied. Here, we show that genetically silencing the activity of neurons expressing calcitonin gene-related peptide (CGRP) in the parabrachial nucleus blocks the suppression of addictive-like behavior induced by footshock. Furthermore, activating CGRP neurons suppresses not only addictive behavior induced by self-stimulating dopamine neurons but also behavior resulting from self-administering cocaine, without eliciting nocifensive reactions. Moreover, among multiple downstream targets of CGRP neurons, terminal activation of CGRP in the central amygdala is effective, mimicking the results of cell body stimulation. Our results indicate that unlike conventional electric footshock, stimulation of CGRP neurons does not activate peripheral nociceptors but effectively curb addictive behavior.
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