Cited by 338Peroxisome Proliferator-Activated ReceptorsImmune Response and InflammationFatty Acid Research and Health

The role of PPARs in inflammation and immunity

Clark, Robert B·2002·Journal of Leukocyte Biology

Abstract

The family of transcription factors termed peroxisome proliferator-activated receptors (PPARs) has recently been the focus of much interest for their possible role in the regulation of inflammation and immune responses. PPARalpha and PPARgamma have been implicated in the regulation of macrophage and endothelial cell inflammatory responses. Although PPAR activation has generally been shown to have anti-inflammatory effects, opposite effects have been noted, and results often appear to depend on the ligands being used and the inflammatory parameters being measured. Recently, my laboratory and others have described a role for PPARgamma in the responses of T lymphocytes. Ligands for PPARgamma have been found to inhibit proliferation of activated T cells, and this appears to involve inhibition of IL-2 secretion and/or the induction of apoptosis. However, one problem in the interpretation of many of the studies of PPARgamma, inflammation, and immunity is that ligands thought to be specific for PPARgamma may have regulatory effects on inflammatory parameters that are PPARgamma-independent. Future studies of the role of the PPARs in inflammatory and immune responses should include further studies of T cells, T-cell subsets, and dendritic cells but will have to re-examine the issue of PPAR specificity of the ligands being used. This may require further knockout studies and technology, together with the identification of endogenous and perhaps more specific synthetic PPAR ligands.

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Crossref · 10.1189/jlb.71.3.388

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Authors
Clark, R. B.
Affiliations
UConn Health (US)
Corresponding author
Clark, Robert B
Venue
Journal of Leukocyte Biology
Published
2002-03-01
Volume
71
Issue
3
Pages
388-400
ISSN
  • 0741-5400 (ISSN-L)
  • 1938-3673
OpenAlex
W2167908723
Cited by
337
References
100
Citations by year
2026: 1 · 2025: 6 · 2024: 5 · 2023: 7 · 2022: 7 · 2021: 5 · 2020: 14 · 2019: 15 · 2018: 10 · 2017: 15 · 2016: 15 · 2015: 21 · 2014: 23 · 2013: 11 · 2012: 10
FWCI
7.76
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Leukocyte Biology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
Keywords
peroxisome proliferator-activated receptors, PPARγ, PPARα, inflammation, immune response, T cells, T cell proliferation, IL-2 secretion, apoptosis, macrophages, endothelial cells, PPAR ligands, ligand specificity, dendritic cells
MeSH terms
Animals, Humans, Immunity, Inflammation, Nuclear Proteins, Transcription Factors, Receptors, Cytoplasmic and Nuclear

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