Conjugated linoleic acid and atherosclerosis: no effect on molecular markers of cholesterol homeostasis in THP-1 macrophages

Sinéad Weldon, Siobhan Mitchell, Dermot Kelleher, Michael J Gibney, Helen M Roche

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

Macrophage cholesterol homeostasis is a key process involved in the initiation and progression of atherosclerosis. Peroxisome proliferator-activated receptors (PPARs) regulate the transcription of the genes involved in cholesterol homeostasis and thus represent an important therapeutic target in terms of reducing atherosclerosis. Conjugated linoleic acid (CLA) is a potent anti-atherogenic dietary fatty acid in animal models of atherosclerosis and is capable of activating PPARs in vitro and in vivo. Therefore, this study examined whether the anti-atherogenic effects of CLA in vivo could be ascribed to altered cholesterol homeostasis in macrophages and macrophage derived foam cells. Of several genes that regulate cholesterol homeostasis investigated, CLA had most effect on the class B scavenger receptor CD36. The cis-9,trans-11 CLA (c9,t11-CLA) and trans-10,cis-12 CLA (t10,c12-CLA) isomers augmented CD36 mRNA expression (P
Original languageEnglish
Pages (from-to)261-73
Number of pages13
JournalAtherosclerosis
Volume174
Issue number2
DOIs
Publication statusPublished - Jun 2004

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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