Cited by 92Peroxisome Proliferator-Activated ReceptorsInflammatory Bowel DiseaseFatty Acid Research and Health

Nitrated oleic acid up-regulates PPARγ and attenuates experimental inflammatory bowel disease

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Borniquel, Sara, Jansson, Emmelie Å., Cole, Marsha P., Freeman, Bruce A., Lundberg, Jon O.·2010·Free Radical Biology and Medicine

Abstract

Nitric oxide and its metabolites undergo nitration reactions with unsaturated fatty acids during oxidative inflammatory conditions, forming electrophilic nitro-fatty acid derivatives. These endogenous electrophilic mediators activate anti-inflammatory signaling reactions, serving as high-affinity ligands for peroxisome proliferator-activated receptor gamma (PPARgamma). Here we examined the therapeutic effects of 9- or 10-nitro-octadecenoic oleic acid (OA-NO(2)) and native oleic acid (OA) in a mouse model of colitis. OA-NO(2) reduced the disease activity index and completely prevented dextran sulfate sodium-induced colon shortening and the increase in colonic p65 expression. Increased PPARgamma expression was observed in colon samples as well as in cells after OA-NO(2) administration, whereas no effect was seen with OA. This induction of PPARgamma expression was completely abolished by the PPARgamma antagonist GW9662. 5-Aminosalicylic acid, an anti-inflammatory drug routinely used in the management of inflammatory bowel disease, also increased PPARgamma expression but to a lesser extent. Altogether, these findings demonstrate that administration of OA-NO(2) attenuates colonic inflammation and improves clinical symptoms in experimental inflammatory bowel disease. This protection involves activation of colonic PPARgamma.

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Crossref · 10.1016/j.freeradbiomed.2009.11.014

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  • NO2-FA signalling pathways are mediated through S-alkylation of nuclear factor κB (resulting in inhibition of macrophage cytokine and iNOS expression) and peroxisome proliferator-activated receptor-γ (PPAR-γ).

    “Signalling pathways are mediated through S-alkylation of, for example, nuclear factor k B (resulting in inhibition of macrophage cytokine and iNOS expression) [194] and peroxisome proliferator-activated receptor-g (PPAR-g) [195].”
  • Through these signaling mechanisms, nitrated lipids mediate a number of physiological effects in animal models including attenuation of inflammatory bowel disease, protection after ischemia/reperfusion, decreases in atherosclerosis, and reversal of obesity-induced pulmonary hypertension.

    “Through these signaling mechanisms, nitrated lipids mediate a number of physiological effects in animal models including attenuation of inflammatory bowel disease (113), protection after ischemia/reperfusion (683, 801), decreases in atherosclerosis (800), and reversal of obesity-induced pulmonary hypertension (495).”
  • Significant metabolic and anti-inflammatory responses are induced by exogenously-administered fatty acid nitroalkenes in murine models after administration of doses giving 5-10 nM plasma concentrations.

    “Significant metabolic and anti-inflammatory responses are induced by exogenously-administered fatty acid nitroalkenes in murine models after administration of doses giving 5–10 nM plasma concentrations [43, 44].”
  • Fatty acid nitroalkene administration inhibits the onset of chemically induced inflammatory bowel disease.

    “Thus, in murine models of metabolic and inflammatory injury, fatty acid nitroalkene administration at nanomolar concentrations prevents restenosis after vessel injury (49), limits weight gain and loss of insulin sensitivity in murine models of metabolic syndrome (14), protects against ischemia-reperfusion injury (17,47,50), reduces plaque formation in a rodent model of atherosclerosis (51), and in”

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Authors
Borniquel, S., Jansson, E. Å., Cole, M. P., Freeman, B. A., & Lundberg, J. O.
Affiliations
  • Karolinska Institutet (SE)
  • University of Pittsburgh (US)
Corresponding author
Lundberg, Jon O.
Venue
Free Radical Biology and Medicine
Publisher
Elsevier BV
Published
2010-02
Volume
48
Issue
4
Pages
499-505
ISSN
0891-5849 (ISSN-L)
OpenAlex
W2058502722
Cited by
92
References
35
Citations by year
2026: 3 · 2025: 1 · 2024: 2 · 2023: 11 · 2022: 4 · 2021: 3 · 2020: 5 · 2019: 6 · 2018: 7 · 2017: 2 · 2016: 7 · 2015: 8 · 2014: 5 · 2013: 8 · 2012: 10
FWCI
2.69
Type
journal article
Language
en
Open access
Locations
  • Free Radical Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Heart, Lung, and Blood Institute (R01HL64937, R01HL064937, R37HL058115, R01HL058115, R01-HL-58115)
  • National Institute of Diabetes and Digestive and Kidney Diseases (T32DK007052)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Inflammatory Bowel Disease
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
Keywords
nitro-fatty acids, PPARγ, inflammatory bowel disease, colitis, DSS-induced colitis, nitric oxide, 5-aminosalicylic acid, GW9662, colonic inflammation, anti-inflammatory signaling
MeSH terms
Animals, Fatty Acids, Female, Free Radicals, Mice, Inbred BALB C, Models, Biological, Nitric Oxide, Inflammatory Bowel Diseases, Up-Regulation, Gene Expression Regulation, Enzymologic, Cell Culture Techniques, Oleic Acid, Mesalamine, PPAR gamma, Mice

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