Cited by 236Tryptophan and brain disordersStress Responses and CortisolTreatment of Major Depression

The DOI matches its Crossref record; 87 of the 87 references it cites were found in a registry or an index.

Prolonged Restraint Stress Increases IL-6, Reduces IL-10, and Causes Persistent Depressive-Like Behavior That Is Reversed by Recombinant IL-10

Open access

Abstract

Altered inflammatory cytokine profiles are often observed in individuals suffering from major depression. Recent clinical work reports on elevated IL-6 and decreased IL-10 in depression. Elevated IL-6 has served as a consistent biomarker of depression and IL-10 is proposed to influence depressive behavior through its ability to counterbalance pro-inflammatory cytokine expression. Clinical and animal studies suggest a role for IL-10 in modifying depressive behavior. Murine restraint stress (RST) is regularly employed in the study of behavioral and biological symptoms associated with depressive disorders. While responses to acute RST exposure have been widely characterized, few studies have examined the ongoing and longitudinal effects of extended RST and fewer still have examined the lasting impact during the post-stress period. Consistent with clinical data, we report that a protocol of prolonged murine RST produced altered cytokine profiles similar to those observed in major depressive disorder. Parallel to these changes in circulating cytokines, IL-10 mRNA expression was diminished in the cortex and hippocampus throughout the stress period and following cessation of RST. Moreover, chronic RST promoted depressive-like behavior throughout the 28-day stress period and these depressive-like complications were maintained weeks after cessation of RST. Because of the correlation between IL-10 suppression and depressive behavior and because many successful antidepressant therapies yield increases in IL-10, we examined the effects of IL-10 treatment on RST-induced behavioral changes. Behavioral deficits induced by RST were reversed by exogenous administration of recombinant IL-10. This work provides one of the first reports describing the biological and behavioral impact following prolonged RST and, taken together, this study provides details on the correlation between responses to chronic RST and those seen in depressive disorders.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1371/journal.pone.0058488

Cites

87 of 87 references verified0 citation errors · 0 not checkable

Statistics

Figures

Figure 1 Experimental timeline.
Figure 1 Experimental timeline.CC BY · PubMed Central
Figure 2 Prolonged RST elevated corticosterone levels throughout the stress period. Corticosterone levels were determined during the stress period (solid bars, Day 0–28) and following stress cessation (hashed bars, Day 29–42). For each data point, n = 5–15 individuals. Data shown is mean +SEM. *p<.05; **p<.0001. Data were collected without repeated sampling of individuals.
Figure 2 Prolonged RST elevated corticosterone levels throughout the stress period. Corticosterone levels were determined during the stress period (solid bars, Day 0–28) and following stress cessation (hashed bars, Day 29–42). For each data point, n = 5–15 individuals. Data shown is mean +SEM. *p<.05; **p<.0001. Data were collected without repeated sampling of individuals.CC BY · PubMed Central
Figure 3 Prolonged RST evoked sustained elevations in stress response. Bodyweight (A), splenic mass (B), adrenal mass (C), and thymic mass (D) were examined during (solid lines, Day 7–28) and following stress cessation (broken lines, Day 29–42). For each data point n = 10 individuals. Data shown is mean +SEM. *p<0.05; **p<.0001. Data were collected without repeated sampling of individuals.
Figure 3 Prolonged RST evoked sustained elevations in stress response. Bodyweight (A), splenic mass (B), adrenal mass (C), and thymic mass (D) were examined during (solid lines, Day 7–28) and following stress cessation (broken lines, Day 29–42). For each data point n = 10 individuals. Data shown is mean +SEM. *p<0.05; **p<.0001. Data were collected without repeated sampling of individuals.CC BY · PubMed Central
Figure 4 Mice exposed to prolonged RST demonstrated sustained depressive-like behavior. Mice were exposed to FST throughout the experimental period. Time to first immobility (A) as well as total immobility (B) were recorded. For each data point n = 10 individuals. Data shown is mean +SEM. *p<0.05. Data were collected without sampling of individuals.
Figure 4 Mice exposed to prolonged RST demonstrated sustained depressive-like behavior. Mice were exposed to FST throughout the experimental period. Time to first immobility (A) as well as total immobility (B) were recorded. For each data point n = 10 individuals. Data shown is mean +SEM. *p<0.05. Data were collected without sampling of individuals.CC BY · PubMed Central
Figure 5 RST elevated circulating IL-6 and decreased IL4 and IL-10. Circulating levels of pro- and anti-inflammatory cytokines were measured throughout the experimental period. For each data point n = 3–9 individuals. Data shown is mean +SEM. *p<0.05. Data were collected without repeated sampling of individuals.
Figure 5 RST elevated circulating IL-6 and decreased IL4 and IL-10. Circulating levels of pro- and anti-inflammatory cytokines were measured throughout the experimental period. For each data point n = 3–9 individuals. Data shown is mean +SEM. *p<0.05. Data were collected without repeated sampling of individuals.CC BY · PubMed Central
Figure 6 RST decreased expression of IL-10 in the brain. mRNA expression of pro- and anti-inflammatory cytokines were measured in the cortex and hippocampus. For each data point n = 6–10 individuals. Data shown is mean +SEM. *p<0.05.
Figure 6 RST decreased expression of IL-10 in the brain. mRNA expression of pro- and anti-inflammatory cytokines were measured in the cortex and hippocampus. For each data point n = 6–10 individuals. Data shown is mean +SEM. *p<0.05.CC BY · PubMed Central
Figure 7 IL-10 treatment exhibits a rescuing effect on restraint stress-induced behavioral deficits. As part of a 21-day RST protocol, mice were treated with vehicle (control and RST mice) or murine IL-10 (IL-10 mice) for seven days immediately preceding FST. For each data point n = 5–15 individuals. Data shown is mean +SEM. *p<0.05.
Figure 7 IL-10 treatment exhibits a rescuing effect on restraint stress-induced behavioral deficits. As part of a 21-day RST protocol, mice were treated with vehicle (control and RST mice) or murine IL-10 (IL-10 mice) for seven days immediately preceding FST. For each data point n = 5–15 individuals. Data shown is mean +SEM. *p<0.05.CC BY · PubMed Central

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Cited by

Sorted by citations

See all 236

Metadata

Authors
Voorhees, J. L., Tarr, A. J., Wohleb, E. S., Godbout, J. P., Mo, X., Sheridan, J. F., Eubank, T. D., & Marsh, C. B.
Affiliations
The Ohio State University (US)
Corresponding author
  • Eubank, Timothy D.
  • Marsh, Clay B.
Venue
PLoS ONE
Published
2013-03-08
Volume
8
Issue
3
Pages
e58488
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2044404835
Cited by
236
References
87
Citations by year
2026: 8 · 2025: 11 · 2024: 19 · 2023: 14 · 2022: 20 · 2021: 19 · 2020: 19 · 2019: 22 · 2018: 22 · 2017: 21 · 2016: 18 · 2015: 22 · 2014: 12 · 2013: 9
FWCI
6.58
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Institutes of Health (NIH-R01, UL1TR000090, T32 HL07946)
  • National Heart, Lung, and Blood Institute (R01HL067176, T32HL007946, R01HL102464, T32 HL07946)
  • National Cancer Institute (P30CA016058)
  • National Center for Advancing Translational Sciences
Topics
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Pharmacology (medical) › Treatment of Major Depression
Keywords
restraint stress, chronic stress, depression, interleukin-6, IL-10, inflammatory cytokines, depression-like behavior, recombinant IL-10, hippocampus, cortex, major depressive disorder, antidepressant mechanism
MeSH terms
Animals, Behavior, Animal, Depression, Immobilization, Recombinant Proteins, Stress, Physiological, Time Factors, Interleukin-6, Interleukin-10, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review