Cited by 142Neurotransmitter Receptor Influence on BehaviorStress Responses and CortisolNeuroscience and Neuropharmacology Research

Collateralized dorsal raphe nucleus projections: A mechanism for the integration of diverse functions during stress

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Waselus, Maria, Valentino, Rita J., Van Bockstaele, Elisabeth J.·2011·Journal of Chemical Neuroanatomy

Abstract

The midbrain dorsal raphe nucleus (DR) is the origin of the central serotonin (5-HT) system, a key neurotransmitter system that has been implicated in the expression of normal behaviors and in diverse psychiatric disorders, particularly affective disorders such as depression and anxiety. One link between the DR-5-HT system and affective disorders is exposure to stressors. Stress is a major risk factor for affective disorders, and stressors alter activity of DR neurons in an anatomically specific manner. Stress-induced changes in DR neuronal activity are transmitted to targets of the DR via ascending serotonergic projections, many of which collateralize to innervate multiple brain regions. Indeed, the collateralization of DR efferents allows for the coordination of diverse components of the stress response. This review will summarize our current understanding of the organization of the ascending DR system and its collateral projections. Using the neuropeptide corticotropin-releasing factor (CRF) system as an example of a stress-related initiator of DR activity, we will discuss how topographic specificity of afferent regulation of ascending DR circuits serves to coordinate activity in functionally diverse target regions under appropriate conditions.

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Crossref · 10.1016/j.jchemneu.2011.05.011

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  1. Davis M Aggleton JP 2000 The role of the amygdala in conditioned and unconditioned fear and anxiety The Amygdala Oxford, UK Oxford University Press 213 288
  2. Gray J 1978 Functions of the septohippocampal system Ciba Foundation Symposium 58
  3. Steinbusch HWM Nieuwenhuys R Emson PC 1983 The Raphe Nuclei of the Rat Brainstem: A Cytoarchitectonic and Immunohistochemical Study Chemical Neuroanatomy New York Raven Press 131 207

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Authors
Waselus, M., Valentino, R. J., & Van Bockstaele, E. J.
Affiliations
  • University of Michigan (US)
  • Children's Hospital of Philadelphia (US)
Corresponding author
Waselus, Maria
Venue
Journal of Chemical Neuroanatomy
Publisher
Elsevier BV
Published
2011-07
Volume
41
Issue
4
Pages
266-280
ISSN
0891-0618 (ISSN-L)
OpenAlex
W2049613345
Cited by
142
References
177
Citations by year
2026: 7 · 2025: 13 · 2024: 6 · 2023: 9 · 2022: 8 · 2021: 8 · 2020: 8 · 2019: 7 · 2018: 11 · 2017: 7 · 2016: 7 · 2015: 9 · 2014: 13 · 2013: 13 · 2012: 12
FWCI
1.28
Type
journal article
Language
en
Open access
Locations
  • Journal of Chemical Neuroanatomy (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Mental Health (MH-02006, MH58250, R01MH058250, R56MH058250, K05MH002006)
  • National Institute on Drug Abuse (R01DA009082, DA 09082)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
dorsal raphe nucleus, serotonergic system, collateral projections, stress response, corticotropin-releasing factor, mood disorders, depression, anxiety
MeSH terms
Afferent Pathways, Animals, Anxiety, Corticotropin-Releasing Hormone, Depression, Humans, Synaptic Transmission, Neurons, Raphe Nuclei, Serotonin, Receptors, Corticotropin-Releasing Hormone, Substance-Related Disorders, Rats

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