Cited by 132Tryptophan and brain disordersTreatment of Major DepressionStress Responses and Cortisol

Novel neuroimmunologic therapeutics in depression: A clinical perspective on what we know so far

Open access
Roman, Michael, Irwin, Michael R.·2020·Brain, Behavior, and Immunity

Abstract

Depression, one of the most common mental health disorders, is among the leading causes of health-related disability worldwide. Although antidepressant treatment has been available for decades, depression remains largely refractory to the prevailing limited treatment approach of monoamine transmission modulation. Fortunately, recent evidence points to a link between depression and inflammatory factors within the innate and the adaptive immune system. The purpose of this review is to evaluate current and potential clinical immunotherapies for depression, as contextually focused by an immunologic lens of the pathophysiologic mechanisms of depression. The utility of pro-inflammatory cytokines (primarily interleukin-1β, interleukin -6 and tumor necrosis factor-α) is considered in their role as screening biomarkers in prediction of treatment response or nonresponse. The evidence base of numerous recent clinical studies is discussed as related to their antidepressant efficacy and favorable safety profile, with consideration of multiple agents that target inflammatory mechanisms linked to depression including nonsteroidal anti-inflammatory pathways (i.e., aspirin, celecoxib), cytokine antagonism (i.e., etanercept, infliximab), N-methyl-D-aspartate receptor (NMDA) receptor antagonism (i.e., ketamine), and modulation of kynurenine pathways (i.e., minocycline). Additionally, new and exciting directions in targeting inflammatory mechanisms in the treatment of depression are underway, and future investigation is also warranted to explore the utility of inflammation in diagnosing depression, guiding clinical treatment decision-making, and monitoring disease burden and relapse risk.

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Crossref · 10.1016/j.bbi.2019.09.016

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  • Blood testing has identified genes, proteins, and proinflammatory markers associated with depression.

    “Similarly, blood testing has identified genes (e.g., NRG1 which is involved in regulation of proliferation, survival, and differentiation of many cell types including neurons and epithelial cells207), proteins (e.g. CD47 which is implicated in neuroinflammatory cascades208), and proinflammatory markers (IL-1β, IL-6)209-211 that are associated with depression.”

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Authors
Roman, M., & Irwin, M. R.
Affiliations
  • University of Pennsylvania (US)
  • University of California, Los Angeles (US)
Corresponding author
Irwin, Michael R.
Venue
Brain, Behavior, and Immunity
Publisher
Elsevier BV
Published
2020-01
Volume
83
Pages
7-21
ISSN
0889-1591 (ISSN-L)
OpenAlex
W2973669742
Cited by
132
References
108
Citations by year
2026: 10 · 2025: 17 · 2024: 25 · 2023: 21 · 2022: 25 · 2021: 19 · 2020: 14 · 2019: 1
FWCI
0.92
Type
journal article
Language
en
Open access
Locations
  • Brain Behavior and Immunity (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
National Institutes of Health
Topics
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
depression, neuroimmunology, inflammation, inflammatory cytokines, IL-1β, interleukin-6, TNF-α, antidepressant response, biomarkers, nonsteroidal anti-inflammatory drugs, celecoxib, aspirin, etanercept, infliximab, ketamine, NMDA receptor antagonism, minocycline, kynurenine pathway, cytokine antagonism
MeSH terms
Antidepressive Agents, Depression, Humans, Ketamine, Receptors, N-Methyl-D-Aspartate, Cytokines

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