Title
The dual PPARα/γ agonist tesaglitazar blocks progression of pre-existing atherosclerosis in APOE*3Leiden.CETP transgenic mice
Author
van der Hoorn, J.W.A.
Jukema, J.W.
Havekes, L.M.
Lundholm, E.
Camejo, G.
Rensen, P.C.N.
Princen, H.M.G.
TNO Kwaliteit van Leven
Publication year
2009
Abstract
Background and purpose: We have evaluated the effects of a peroxisome proliferator-activated receptor (PPAR)α/γ agonist on the progression of pre-existing atherosclerotic lesions in APOE*3Leiden.cholesteryl ester transfer protein (E3L.CETP) transgenic mice. Experimental approach: E3L.CETP mice were fed a high-cholesterol diet for 11 weeks to induce atherosclerosis, followed by a low-cholesterol diet for 4 weeks to obtain a lower plasma total cholesterol level of ∼10 mmol·L-1. Mice were divided into three groups, which were either killed before (baseline) or after an 8 week treatment period with low-cholesterol diet without (control) or with the PPARα/γ agonist tesaglitazar (10 μg·kg -1·day-1). Atherosclerosis was assessed in the aortic root. Key results: Treatment with tesaglitazar significantly reduced plasma triglycerides, total cholesterol, CETP mass and CETP activity, and increased high-density lipoprotein-cholesterol. At baseline, substantial atherosclerosis had developed. During the 8 week low-cholesterol diet, atherosclerosis progressed in the control group with respect to lesion area and severity, whereas tesaglitazar inhibited lesion progression during this period. Tesaglitazar reduced vessel wall inflammation, as reflected by decreased monocyte adhesion and macrophage area, and modified lesions to a more stabilized phenotype, with increased smooth muscle cell content in the cap and collagen content. Conclusions and implications: Dual PPARα/γ agonism with tesaglitazar markedly improved the atherogenic triad by reducing triglycerides and very low-density lipoprotein-cholesterol and increasing high-density lipoprotein-cholesterol and additionally reduced cholesterol-induced vessel wall activation. These actions resulted in complete inhibition of progression and stabilization of pre-existing atherosclerotic lesions in E3L.CETP mice. © 2009 The British Pharmacological Society.
Subject
Biology
Biomedical Research
3Leiden.CETP mice
APOE
Atherogenic triad
Atherosclerosis
PPARα/γ
Tesaglitazar
2 ethoxy 3 (4 ((4 (methylsulfonyloxy)phenethyl)oxy)phenyl)propanoic acid
Alkanesulfonic acid
High density lipoprotein cholesterol
Peroxisome proliferator activated receptor alpha
Peroxisome proliferator activated receptor gamma
Phenylpropionic acid derivative
Very low density lipoprotein cholesterol
Biosynthesis
Blood
Drug potentiation
Genetics
Inflammation
Metabolism
Mouse
Mutation
Pathology
Transgenic mouse
Alkanesulfonates
Animals
Aortic Valve
Apolipoprotein E3
Atherosclerosis
Cholesterol Ester Transfer Proteins
Cholesterol, HDL
Cholesterol, VLDL
Female
Humans
Inflammation
Mice
Mice, Transgenic
Mutation
Phenylpropionates
PPAR alpha
PPAR gamma
To reference this document use:
http://resolver.tudelft.nl/uuid:9ee78a02-3edf-4757-b1d7-244fff8c5937
DOI
https://doi.org/10.1111/j.1476-5381.2008.00109.x
TNO identifier
241469
ISSN
0007-1188
Source
British Journal of Pharmacology, 156 (7), 1067-1075
Document type
article