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Molecular mechanisms underlying the antiatherosclerotic and antidiabetic effects of probucol, succinobucol, and other probucol analogues

Stocker, Roland

Current Opinion in Lipidology: June 2009 - Volume 20 - Issue 3 - p 227–235
doi: 10.1097/MOL.0b013e32832aee68
Lipid metabolism: Edited by Jeffrey S. Cohn

Purpose of review New therapies for the management of cardiovascular disease remain highly desirable, yet the recently developed agents, such as the cholesterylester transfer protein inhibitor torcetrapib, the antidiabetic agent rosiglitazone, and anti-inflammatory inhibitors of cyclooxygenase-2, have failed. In this review, the more recent developments in the molecular mechanisms underlying the beneficial activities of probucol and related compounds are described.

Recent findings In-vivo and in-vitro studies have revealed that several of the protective activities of probucol can be explained by the ability of this drug to induce the enzyme heme oxygenase-1. It is now apparent that the sulfur atoms, rather than the phenol moieties of probucol, are required for its antiatherogenic and antirestenotic activities. Compounds related to probucol that have improved efficacy without the adverse effects offer promise as novel therapies of cardiovascular disease. Recent results suggest these compounds may also be used for the prevention of type-2 diabetes, a disease that is increasing in prevalence and importance worldwide.

Summary The development of derivatives of probucol targeting anti-inflammatory and antioxidant processes, perhaps via induction of heme oxygenase-1, may add to the armamentarium of current agents used in treatment of atherosclerotic disease and diabetes.

Centre for Vascular Research, School of Medical Sciences (Pathology) and Bosch Institute, The University of Sydney, Sydney, Australia

Correspondence to Roland Stocker, Centre for Vascular Research, School of Medical Sciences (Pathology) and Bosch Institute, The University of Sydney, Medical Foundation Building K25, 92-94 Parramatta Road, Camperdown, Sydney, NSW 2006, Australia Tel: +61 2 9036 3207; fax: +61 2 9036 3038; e-mail:

© 2009 Lippincott Williams & Wilkins, Inc.