Cited by 391Sepsis Diagnosis and TreatmentInflammation biomarkers and pathwaysAnimal testing and alternatives

Animal models of sepsis

Open access
Fink, Mitchell P·2014·Virulence

Abstract

Sepsis remains a common, serious, and heterogeneous clinical entity that is difficult to define adequately. Despite its importance as a public health problem, efforts to develop and gain regulatory approval for a specific therapeutic agent for the adjuvant treatment of sepsis have been remarkably unsuccessful. One step in the critical pathway for the development of a new agent for adjuvant treatment of sepsis is evaluation in an appropriate animal model of the human condition. Unfortunately, the animal models that have been used for this purpose have often yielded misleading findings. It is likely that there are multiple reasons for the discrepancies between the results obtained in tests of pharmacological agents in animal models of sepsis and the outcomes of human clinical trials. One of important reason may be that the changes in gene expression, which are triggered by trauma or infection, are different in mice, a commonly used species for preclinical testing, and humans. Additionally, many species, including mice and baboons, are remarkably resistant to the toxic effects of bacterial lipopolysaccharide, whereas humans are exquisitely sensitive. New approaches toward the use of animals for sepsis research are being investigated. But, at present, results from preclinical studies of new therapeutic agents for sepsis must be viewed with a degree of skepticism.

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  • High doses of endotoxin in blood cause a 'cytokine storm', septic shock and death, via activating TLR4, RAGE and caspases.

    “High doses of endotoxin in blood (endotoxemia) cause a ‘cytokine storm’, septic shock and death, via activating TLR4, RAGE and caspases [16, 18, 20, 21].”

    From The endotoxin hypothesis of neurodegeneration (2019) · cites this paper as [16]

  • Endotoxin is released by bacteria and its toxicity is due to the host's inflammatory over-reaction rather than an intrinsic toxicity to animal cells.

    “we now know that (i) endotoxin is released by bacteria and (ii) the toxicity of endotoxin is due to the host’s inflammatory over-reaction to it, rather than an intrinsic toxicity to animal cells [3, 16, 18].”

    From The endotoxin hypothesis of neurodegeneration (2019) · cites this paper as [16]

  • Humans are orders of magnitude more sensitive to endotoxin than other mammals, such as mice.

    “Humans are orders of magnitude more sensitive to endotoxin than other mammals, such as mice [16].”

    From The endotoxin hypothesis of neurodegeneration (2019) · cites this paper as [16]

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Authors
Fink, M. P.
Affiliations
University of California, Los Angeles (US)
Corresponding author
Fink, Mitchell P
Venue
Virulence
Published
2013-08-19
Volume
5
Issue
1
Pages
143-153
ISSN
  • 2150-5594 (ISSN-L)
  • 2150-5608
OpenAlex
W2065468254
Cited by
391
References
125
Citations by year
2026: 19 · 2025: 22 · 2024: 31 · 2023: 35 · 2022: 31 · 2021: 38 · 2020: 40 · 2019: 46 · 2018: 44 · 2017: 32 · 2016: 21 · 2015: 17 · 2014: 12 · 2013: 3
FWCI
2.08
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Virulence (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Epidemiology › Sepsis Diagnosis and Treatment
  • Life Sciences › Immunology and Microbiology › Immunology › Inflammation biomarkers and pathways
  • Health Sciences › Veterinary › Small Animals › Animal testing and alternatives
Keywords
sepsis, animal models of sepsis, preclinical drug testing, translational research, lipopolysaccharide toxicity
MeSH terms
Animals, Disease Models, Animal, Humans, Lipopolysaccharides, Monkey Diseases, Papio, Sheep, Sheep Diseases, Sepsis, Mice

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