Cited by 71Posttraumatic Stress Disorder ResearchStress Responses and CortisolNeurotransmitter Receptor Influence on Behavior

Molecular and cell signaling targets for PTSD pathophysiology and pharmacotherapy

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Hauger, Richard L., Olivares-Reyes, J. Alberto, Dautzenberg, Frank M., Lohr, James B., Braun, Sandra, Oakley, Robert H.·2012·Neuropharmacology

Abstract

The reasons for differences in vulnerability or resilience to the development of posttraumatic stress disorder (PTSD) are unclear. Here we review key genetic diatheses and molecular targets especially signaling pathways that mediate responses to trauma and severe stress and their potential contribution to the etiology of PTSD. Sensitization of glucocorticoid receptor (GR) signaling and dysregulation of GR modulators FKBP5, STAT5B, Bcl-2, and Bax have been implicated in PTSD pathophysiology. Furthermore, Akt, NFκB, MKP-1, and p11, which are G protein-coupled receptor (GPCR) pathway molecules, can promote or prevent sustained high anxiety and depressive-like behavior following severe stress. Agonist-induced activation of the corticotropin-releasing factor CRF1 receptor is crucial for survival in the context of serious danger or trauma, but persistent CRF1 receptor hypersignaling when a threatening or traumatic situation is no longer present is maladaptive. CRF1 receptor single nucleotide polymorphisms (SNPs) can confer susceptibility or resilience to childhood trauma while a SNP for the PAC1 receptor, another class B1 GPCR, has been linked genetically to PTSD. GRK3 phosphorylation of the CRF1 receptor protein and subsequent binding of βarrestin2 rapidly terminate Gs-coupled CRF1 receptor signaling by homologous desensitization. A deficient GRK-βarrestin2 mechanism would result in excessive CRF1 receptor signaling thereby contributing to PTSD and co-morbid posttraumatic depression. Clinical trials are needed to assess if small molecule CRF1 receptor antagonists are effective prophylactic agents when administered immediately after trauma. βarrestin2-biased agonists for CRF receptors and possibly other GPCRs implicated in PTSD, however, may prove to be novel pharmacotherapy with greater selectivity and therapeutic efficacy.

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Crossref · 10.1016/j.neuropharm.2011.11.007

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  • To date, findings mainly implicate two key genes: the GC response element (GRE) and the CRH-releasing hormone receptor 1 (CRHR1) of the FKBP5 gene.

    “To date, findings mainly implicate two key genes: the GC response element (GRE) and the CRH-releasing hormone receptor 1 (CRHR1) of the FKBP5 gene (383, 384).”

    From Developmental Trajectories of Early Life Stress and Trauma: A Narrative Review on Neurobiological Aspects Beyond Stress System Dysregulation (2019) · cites this paper as [384]

    Section 2, “Potential Genes for PTSD Pathophysiology” (page not provided), links FKBP5 variants to PTSD risk and discusses the CRF1 receptor gene as a separate potential contributor. It does not identify a glucocorticoid response element (GRE) as one of two key genes or describe CRF1/CRHR1 as part of the FKBP5 gene. The claim conflates distinct biological entities. (LLM, conf=0.88)

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Research works printed but not linked: 1

  1. Institute of Medicine Treatment of Posttraumatic Stress Disorder: An Assessment of the Evidence 2008 The National Academies Press Washington DC

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Authors
Hauger, R. L., Olivares-Reyes, J. A., Dautzenberg, F. M., Lohr, J. B., Braun, S., & Oakley, R. H.
Affiliations
  • University of California San Diego (US)
  • Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (MX)
  • National Institutes of Health (US)
Corresponding author
Hauger, Richard L.
Venue
Neuropharmacology
Publisher
Elsevier BV
Published
2012-02
Volume
62
Issue
2
Pages
705-714
ISSN
0028-3908 (ISSN-L)
OpenAlex
W2147525819
Cited by
71
References
85
Citations by year
2024: 2 · 2023: 12 · 2022: 3 · 2021: 3 · 2020: 5 · 2019: 4 · 2018: 5 · 2017: 3 · 2016: 7 · 2015: 9 · 2014: 6 · 2013: 9 · 2012: 3
FWCI
0.88
Type
journal article
Language
en
Open access
Locations
  • Neuropharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute on Aging (R01AG018386, AG018386)
  • National Institute of Mental Health (MH074697, R01MH074697)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
post-traumatic stress disorder, glucocorticoid receptor signaling, FKBP5, STAT5B, Bcl-2, Bax, Akt, NF-κB, MKP-1, p11, G protein-coupled receptors, corticotropin-releasing factor 1 receptor, PAC1 receptor, GRK3, β-arrestin2, receptor desensitization, single nucleotide polymorphisms, childhood trauma, post-traumatic depression, PTSD pharmacotherapy, stress resilience, anxiety-like behavior, depression-like behavior
MeSH terms
Humans, Phosphorylation, Receptors, Glucocorticoid, Stress Disorders, Post-Traumatic, Signal Transduction, Receptors, Corticotropin-Releasing Hormone

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