Cited by 456Stress Responses and CortisolMemory and Neural MechanismsNeuropeptides and Animal Physiology

Regional Differentiation of the Medial Prefrontal Cortex in Regulating Adaptive Responses to Acute Emotional Stress

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Radley, Jason J., Arias, Carlos M., Sawchenko, Paul E.·2006·The Journal of Neuroscience

Abstract

The medial prefrontal cortex (mPFC) is an important neural substrate for integrating cognitive-affective information and regulating the hypothalamo–pituitary–adrenal (HPA) axis response to emotional stress. mPFC modulation of stress responses is effected in part via the paraventricular hypothalamic nucleus (PVH), which houses both autonomic (sympathoadrenal) and neuroendocrine (HPA) effector mechanisms. Although the weight of evidence suggests that mPFC influences on stress-related PVH outputs are inhibitory, discordant findings have been reported, and such work has tended to treat this cortical region as a unitary structure. Here we compared the effects of lesions of the dorsal versus ventral aspects of mPFC, centered in the prelimbic and infralimbic fields, respectively, on acute restraint stress-induced activation of PVH cell groups mediating autonomic and neuroendocrine responses. Lesions to the dorsal mPFC enhanced restraint-induced Fos and corticotropin-releasing factor (CRF) mRNA expression in the neurosecretory region of PVH. Ablation of the ventral mPFC decreased stress-induced Fos protein and CRF mRNA expression in this compartment but increased Fos induction in PVH regions involved in central autonomic control. Repetition of the experiments in rats bearing retrograde tracer deposits to label PVH-autonomic projections confirmed that ventral mPFC lesions selectively increased stress-induced Fos expression in identified preautonomic neurons. Finally, hormonal indices of HPA activation in response to acute stress were augmented after dorsal mPFC lesions and attenuated after ventral mPFC lesions. These results suggest that dorsal and ventral aspects of the mPFC differentially regulate neuroendocrine and autonomic PVH outputs in response to emotional stress.

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Crossref · 10.1523/jneurosci.4297-06.2006

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  • The cingulate cortex projects to stress inhibitory areas (dorsomedial hypothalamus and the paraventricular hypothalamic nucleus), whilst the infralimbic cortex projects to stress excitatory areas (stria medullaris and amygdala).

    “The cingulate cortex projects to stress inhibitory (dorsomedial hypothalamus and the paraventricular hypothalamic nucleus), whilst the infralimbic cortex projects to stress excitatory areas (stria medullaris and amygdala) (125–128).”

    From Childhood Trauma, the HPA Axis and Psychiatric Illnesses: A Targeted Literature Synthesis (2022) · cites this paper as [126]

    The Discussion (page not available in our copy) supports the broad distinction: dorsal medial prefrontal connections are associated with stress inhibition, while ventral connections are associated with facilitation, and it mentions ventral connections with the amygdala. It does not establish projections from cingulate cortex to the dorsomedial hypothalamus or from infralimbic cortex to the stria medullaris. It also says medial prefrontal projections are sparse within the paraventricular hypothalamic nucleus itself, rather than supporting the stated direct projection to it. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Stress results in atrophy of the hippocampus and medial PFC (mPFC).

    “By contrast, stress results in atrophy of the hippocampus and medial PFC (mPFC) (Magariños et al., 1997, Vyas et al., 2002, Radley et al., 2006).”

    From The impact of developmental timing for stress and recovery (2015) · cites this paper as Radley et al., 2006

  • IL/25 projects directly to autonomic regions that enhance sympathetic activity, including perifornical area, dorsomedial hypothalamus, dorsolateral periaqueductal gray, lateral parabrachial nucleus, cuneiform nucleus, and lateral septum.

    “IL/25 projects directly to a number of autonomic regions which have been found to enhance sympathetic activity, including the perifornical area, dorsomedial hypothalamus, dorsolateral periaqueductal gray, lateral parabrachial nucleus, cuneiform nucleus, and lateral septum, among other regions (4, 33, 35–37, 39, 47, 82, 97, 98).”

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Research works printed but not linked: 1

  1. Swanson LW (1992) Brain maps: structure of the rat brain. Amsterdam: Elsevier.

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Authors
Radley, J. J., Arias, C. M., & Sawchenko, P. E.
Affiliations
Salk Institute for Biological Studies (US)
Venue
The Journal of Neuroscience
Published
2006-12-13
Volume
26
Issue
50
Pages
12967-12976
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1963910089
Cited by
456
References
8
Citations by year
2026: 12 · 2025: 11 · 2024: 10 · 2023: 16 · 2022: 25 · 2021: 25 · 2020: 64 · 2019: 16 · 2018: 24 · 2017: 18 · 2016: 29 · 2015: 30 · 2014: 24 · 2013: 30 · 2012: 24
FWCI
7.10
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Alliance for Research on Schizophrenia and Depression
  • Fondation pour la Recherche Médicale
  • National Institutes of Health
  • National Institute of Neurological Disorders and Stroke (R01NS049196, NS-49196)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
medial prefrontal cortex, regional differentiation, acute emotional stress, restraint stress, paraventricular nucleus, hypothalamic-pituitary-adrenal axis, corticotropin-releasing factor, Fos expression, autonomic stress response, neuroendocrine stress response, prelimbic cortex, infralimbic cortex, retrograde tracing
MeSH terms
Acute Disease, Adaptation, Psychological, Adrenocorticotropic Hormone, Animals, Corticotropin-Releasing Hormone, Emotions, Male, Nerve Net, RNA, Messenger, Stress, Psychological, Rats, Sprague-Dawley, Prefrontal Cortex, Rats

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