Journal
CLINICAL SCIENCE
Volume 116, Issue 3-4, Pages 205-218Publisher
PORTLAND PRESS LTD
DOI: 10.1042/CS20080195
Keywords
cardiovascular disease; diabetes; drug design; fatty acid; nitroalkenes; peroxisome-proliferator-activated receptor-gamma (PPAR gamma)
Categories
Funding
- National Institutes of Health [HL68878, HL89544, HL75397, HL58115, HL64937]
- American Heart Association [0840025N]
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The relevance of PPAR gamma (peroxisome-proliferator-activated receptor gamma) as an important therapeutic target for the treatment of diabetes arises from its hypoglycaemic effects in diabetic patients and also from the critical role in the regulation of cardiovascular functions. From a clinical perspective, differences between current FDA (Food and Drug Administration)-approved PPAR gamma drugs have been observed in terms of atherosclerosis and cardiac and stroke events. The adverse effects of PPAR gamma-specific treatments that hamper their cardiovascular protective roles, affirm the strong need to evaluate the efficacy of the current drugs. Therefore active research is directed towards high-throughput screening and pharmacological testing of a plethora of newly identified natural or synthetic compounds. In the present review we describe the rationale behind drug design strategies targeting PPAR gamma, based on current knowledge regarding the effects of such drugs in experimental animal models, as well as in clinical practice. Regarding endogenous PPAR gamma ligands, several fatty acid derivatives bind PPAR gamma with different affinities, although the physiological relevance of these interactions is not always evident. Recently, NO-derived unsaturated fatty acids were found to be potent agonists of PPARs, with preferential affinity for PPAR gamma, compared with oxidized fatty acid derivatives. Nitroalkenes exert important bioactivities of relevance for the cardiovascular system including anti-inflammatory and antiplatelet actions, and are important mediators of vascular tone. A new generation of insulin sensitizers with PPAR gamma function for the treatment of diabetes may serve to limit patients from the increased cardiovascular burden of this disease.
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