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Related Experiment Video

Updated: Mar 18, 2026

Cell-free Biochemical Fluorometric Enzymatic Assay for High-throughput Measurement of Lipid Peroxidation in High Density Lipoprotein
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Oxidized cholesteryl esters and inflammation.

Soo-Ho Choi1, Dmitri Sviridov2, Yury I Miller1

  • 1Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA.

Biochimica Et Biophysica Acta. Molecular and Cell Biology of Lipids
|July 3, 2016
PubMed
Summary
This summary is machine-generated.

Oxidized LDL contributes to atherosclerosis, but antioxidant trials failed. Targeting oxidized cholesteryl esters (OxCE) and their inflammatory pathways in macrophages offers a novel therapeutic strategy for cardiovascular disease.

Keywords:
AtherosclerosisCholesterolCholesteryl esterMD-2OxidationTLR4

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Area of Science:

  • Cardiovascular Science
  • Immunology
  • Biochemistry

Background:

  • The oxidation hypothesis implicates oxidized LDL in atherosclerosis development.
  • Antioxidant interventions show promise in animal models but yield limited success in human trials, except in specific patient groups.

Purpose of the Study:

  • To explore novel therapeutic strategies for cardiovascular disease by understanding mechanisms of oxidized LDL in atherosclerosis.
  • To focus on oxidized cholesteryl esters (OxCE) and their role in macrophage activation and inflammation.

Main Methods:

  • Review of existing literature on oxidized LDL, oxidized cholesteryl esters (OxCE), and their biological effects.
  • Focus on OxCE-induced activation of macrophages via toll-like receptor-4 (TLR4) and spleen tyrosine kinase.

Main Results:

  • OxCE and their protein adducts induce significant biological effects, including macrophage activation.
  • OxCE activate macrophages, leading to lipid accumulation, reactive oxygen species generation, and inflammatory cytokine secretion.
  • OxCE activate macrophages via TLR4 and spleen tyrosine kinase, promoting inflammatory responses.

Conclusions:

  • Targeting OxCE-induced TLR4 activation and other inflammatory pathways presents a promising therapeutic avenue for atherosclerosis.
  • Inhibiting specific OxCE-mediated inflammatory effects may offer novel treatments for cardiovascular disease.