Print Email Facebook Twitter The dual PPARα/γ agonist tesaglitazar blocks progression of pre-existing atherosclerosis in APOE*3Leiden.CETP transgenic mice 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 BiologyBiomedical Research3Leiden.CETP miceAPOEAtherogenic triadAtherosclerosisPPARα/γTesaglitazar2 ethoxy 3 (4 ((4 (methylsulfonyloxy)phenethyl)oxy)phenyl)propanoic acidAlkanesulfonic acidHigh density lipoprotein cholesterolPeroxisome proliferator activated receptor alphaPeroxisome proliferator activated receptor gammaPhenylpropionic acid derivativeVery low density lipoprotein cholesterolBiosynthesisBloodDrug potentiationGeneticsInflammationMetabolismMouseMutationPathologyTransgenic mouseAlkanesulfonatesAnimalsAortic ValveApolipoprotein E3AtherosclerosisCholesterol Ester Transfer ProteinsCholesterol, HDLCholesterol, VLDLFemaleHumansInflammationMiceMice, TransgenicMutationPhenylpropionatesPPAR alphaPPAR 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 Files To receive the publication files, please send an e-mail request to TNO Library.