Abstract
The chance discovery of hydroxymethylglutaryl (HMG)-CoA reductase inhibitors has revolutionized the care of patients with cardiovascular disease. The unexpected finding that these cholesterol-lowering drugs (or 'statins') also possess pleiotropic immunomodulatory properties, has opened a new area of research which investigates the anti-inflammatory and anti-proliferative properties of statins. In this brief commentary, we discuss the potential application of these drugs in asthma, where metabolic pathways pertinent to lung inflammation, in addition to the mevalonate cascade, may be targeted. We review mechanisms of action, discuss the potential therapeutic use of statins in asthma, share some preliminary data from our laboratory, discuss results from recent clinical trials in asthma, and propose a new target asthma subpopulation that could potentially benefit. We conclude our essay by highlighting the mevalonate-dependent and -independent pathways that may be modulated by statins, including the emerging area of cholesterol, sphingolipid, and lipid raft biology in lung disease. In this is an opportunity to develop new treatments for asthma, where innovative therapies are urgently needed to prevent acute exacerbations and alter disease progression.
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