Cited by 79Treatment of Major DepressionTryptophan and brain disordersStress Responses and Cortisol

Interleukin 17 selectively predicts better outcomes with bupropion-SSRI combination: novel T cell biomarker for antidepressant medication selection

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Jha, Manish K., Minhajuddin, Abu, Gadad, Bharathi S., Greer, Tracy L., Mayes, Taryn L., Trivedi, Madhukar H.·2017·Brain, Behavior, and Immunity

Abstract

Background Interleukin 17 (IL-17) is produced by highly inflammatory Th17 cells and has been implicated in pathophysiology of depression. IL-17 putatively disrupts the blood brain barrier and affects dopamine synthesis whereas dopamine has been shown to decrease Th17 cell-mediated immune response. Nevertheless, whether IL-17 can predict differential treatment outcome with antidepressants modulating dopaminergic transmission is unknown.Methods IL-17 and other T cell and non-T cell markers (Th1, Th2 and non-T cell markers) were measured with the Bioplex Pro™ human cytokine 27-plex kit in the Combining Medications to Enhance Depression Outcomes (CO-MED) trial participants who provided baseline plasma and were treated with either bupropion plus escitalopram (bupropion-SSRI), escitalopram plus placebo (SSRI monotherapy), or venlafaxine plus mirtazapine (n=166). Differential changes in symptom severity and side-effects based on levels of IL-17 and other T and non-T cell markers were tested using a treatment-arm-by-biomarker interaction in separate repeated measures mixed model analyses. Subsequent analyses stratified by treatment arm were conducted for those markers with a significant interaction.Results There was a significant treatment-arm-by-IL-17 interaction for depression severity (p=0.037) but not for side-effects (p=0.28). Higher baseline IL-17 level was associated with greater reduction in depression severity (effect size=0.78, p=0.008) in the bupropion-SSRI but not the other two treatment arms. Other T and non-T cell markers were not associated with differential treatment outcomes.Conclusion Higher baseline levels of IL-17 are selectively associated with greater symptomatic reduction in depressed patients treated with bupropion-SSRI combination.

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Authors
Jha, M. K., Minhajuddin, A., Gadad, B. S., Greer, T. L., Mayes, T. L., & Trivedi, M. H.
Affiliations
The University of Texas Southwestern Medical Center (US)
Corresponding author
Trivedi, Madhukar H.
Venue
Brain, Behavior, and Immunity
Publisher
Elsevier BV
Published
2017-11
Volume
66
Pages
103-110
ISSN
0889-1591 (ISSN-L)
OpenAlex
W2724318939
Cited by
79
References
56
Citations by year
2026: 4 · 2025: 10 · 2024: 7 · 2023: 7 · 2022: 6 · 2021: 13 · 2020: 9 · 2019: 11 · 2018: 10 · 2017: 2
FWCI
6.11
Type
journal article
Language
en
Open access
Locations
  • Brain Behavior and Immunity (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • NIMH
  • UT Southwestern
  • Hersh Foundation
Topics
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
IL-17, depression, antidepressant response, bupropion, escitalopram, venlafaxine, mirtazapine, Th17 cells, depression severity, antidepressant side effects
MeSH terms
Serotonin and Noradrenaline Reuptake Inhibitors, Venlafaxine Hydrochloride, Mirtazapine, Adult, Antidepressive Agents, Antidepressive Agents, Tricyclic, Depressive Disorder, Major, Major Depressive Disorder, Drug Therapy, Combination, Female, Humans, Inflammation, Male, Mianserin, Middle Aged, Psychiatric Status Rating Scales, Severity of Illness Index, T-Lymphocytes, Citalopram, Biomarkers, Bupropion, Selective Serotonin Reuptake Inhibitors, Antidepressive Agents, Second-Generation, Interleukin-17

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