Cited by 93Thyroid Disorders and TreatmentsAdrenal Hormones and DisordersGrowth Hormone and Insulin-like Growth Factors

The role of cytokines in the lipopolysaccharide-induced sick euthyroid syndrome in mice

Boelen, A, Platvoet-ter Schiphorst, M C, Bakker, O, Wiersinga, W M·1995·Journal of Endocrinology

Abstract

To evaluate the role of cytokines in the sick euthyroid syndrome, we tried to establish an animal model of non-thyroidal illness in mice by the administration of a sub-lethal dose of bacterial endotoxin (lipopolysaccharide; LPS) which induces a variety of cytokines, including tumour necrosis factor (TNFα), interleukin-1 (IL-1α), interleukin-6 (IL-6) and interferon-γ (IFNγ). When compared with pair-fed controls, a single dose of LPS resulted in (a) systemic illness, (b) induction of TNFα and IL-6 and (c) a decrease of liver 5′-deiodinase mRNA from 4 h onwards followed by a decrease of serum tri-iodothyronine (T3) and thyroxine (T4) at 8 h and of serum free T3 (fT3) and free T4 (fT4) at 24 h; serum TSH remained unchanged. We then studied whether a single dose or a combination of IL-1α, TNFα, IL-6 or IFNγ could induce the sick euthyroid syndrome in mice, again using pair-fed controls. None of the cytokines except IL-1α caused systemic illness, and IL-1α was the only cytokine that decreased liver 5′-deiodinase mRNA transiently. IL-1α, TNFα or IL-6 did not decrease serum T3, T4 and TSH, but administration of IFNγ decreased serum T4, T3 and fT3 in a dose-dependent manner without changes in serum TSH. Administration of all four cytokines together had no synergistic effects; observed changes were of a smaller magnitude than after LPS. The following conclusions were reached. (1) Administration of LPS in mice is a suitable experimental model for the acute induction of the sick euthyroid syndrome. (2) Acute administration of IL-1α, TNFα or IL-6 in mice does not induce changes in thyroid hormones but IFNγ results in a dose-dependent decrease of serum T4, T3 and fT3 and IL-1α decreases liver 5′-deiodinase mRNA transiently. (3) Combined administration of IL-1α, TNFα, IL-6 and IFNγ had no synergistic effects; observed changes were of a smaller magnitude than after LPS. (4) The LPS-induced sick euthyroid syndrome is currently best explained by a direct thyroidal inhibition due to IFNγ and an extrathyroidal inhibition of liver 5′-deiodinase due to IL-1α, but other still unidentified factors seem to be involved as well. Journal of Endocrinology (1995) 146, 475–483

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Crossref · 10.1677/joe.0.1460475

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  • In an acute NTIS mouse model, an increase in serum IL-6 and TNFα concentrations precedes the decrease in serum T3 and T4.

    “In an acute NTIS mouse model, an increase in serum IL-6 and TNFα concentrations precedes the decrease in serum T3 and T4 [51].”

    From An update on non-thyroidal illness syndrome (2021) · cites this paper as [51]

  • A causal role for IL-6 is likely since IL-6 knockout mice show a smaller decrease in serum T3 during acute illness, although acute injection of IL-6 failed to induce NTIS in mice.

    “A causal role for IL-6 is likely since IL-6 knockout mice show a smaller decrease in serum T3 during acute illness [52], although acute injection of IL-6 failed to induce NTIS in mice [51].”

    From An update on non-thyroidal illness syndrome (2021) · cites this paper as [51]

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Authors
Boelen, A., Platvoet-ter Schiphorst, M. C., Bakker, O., & Wiersinga, W. M.
Affiliations
Amsterdam UMC Location University of Amsterdam (NL)
Venue
Journal of Endocrinology
Published
1995-09-01
Volume
146
Issue
3
Pages
475-483
ISSN
  • 0022-0795 (ISSN-L)
  • 1479-6805
OpenAlex
W2076225876
Cited by
93
References
0
Citations by year
2026: 4 · 2025: 1 · 2024: 1 · 2023: 1 · 2022: 1 · 2020: 2 · 2018: 1 · 2017: 3 · 2016: 2 · 2015: 6 · 2014: 3 · 2013: 3 · 2012: 1
FWCI
3.95
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Pure Amsterdam UMC (submittedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Growth Hormone and Insulin-like Growth Factors
Keywords
low T3 syndrome, lipopolysaccharide, cytokines, interferon-gamma, interleukin-1 alpha, TNF-α, interleukin-6, thyroid hormones, 5'-deiodinase, animal models, serum triiodothyronine, thyroxine, thyroid-stimulating hormone, mice, endotoxin
MeSH terms
Animals, Disease Models, Animal, Dose-Response Relationship, Drug, Euthyroid Sick Syndromes, Female, Interferon-gamma, Interleukin-1, Iodide Peroxidase, Lipopolysaccharides, Liver, Mice, Inbred Strains, Thyrotropin, Thyroxine, Triiodothyronine, Tumor Necrosis Factor-alpha, Interleukin-6, Cytokines, Mice

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