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New strategies in managing and preventing atherosclerosis: focus on HDL
Matthew J Price1, Prediman K Shah
1Division of Cardiology and Atherosclerosis Research Center, Burns and Allen Research Institute, Los Angeles, CA, USA.
Insights
High-density lipoprotein (HDL) can combat atherosclerosis by removing cholesterol from artery walls. Raising HDL levels offers cardiovascular benefits, representing a new therapeutic approach.
Area of Science:
- Cardiovascular Science
- Lipid Metabolism
- Inflammation Biology
Background:
- Atherosclerosis involves low-density lipoprotein (LDL) entrapment and oxidative modification, triggering inflammation.
- High-density lipoprotein (HDL) plays a complex role, interacting with atherosclerotic processes.
- Therapeutic strategies targeting HDL offer potential for managing atherosclerosis.
Purpose of the Study:
- To explore the anti-atherogenic potential of high-density lipoprotein (HDL).
- To investigate HDL's role in cholesterol efflux and plaque stabilization.
- To highlight HDL-focused therapies as a novel approach to atherosclerosis management.
Main Methods:
- Review of existing clinical trial data on HDL levels and cardiovascular outcomes.
- Analysis of HDL's mechanisms in cholesterol transport and anti-inflammatory pathways.
- Examination of apolipoproteins associated with HDL function.
Main Results:
- Evidence suggests raising HDL levels provides cardiovascular benefits independent of LDL reduction.
- HDL promotes cholesterol efflux from arterial walls, reducing plaque lipid content.
- HDL may inhibit early atherosclerotic lesion formation (fatty streaks).
Conclusions:
- Targeting HDL and its apolipoproteins is a promising anti-atherogenic strategy.
- Increasing HDL levels represents a potential therapeutic frontier for atherosclerosis.
- HDL-based interventions could prevent, stabilize, or promote regression of atherosclerotic disease.
Abstract:
The development of atherosclerosis is a complex process whose central elements include the entrapment of low-density lipoprotein in the vessel wall, its subsequent oxidative modification, and the stimulation of proinflammatory gene expression leading to inflammatory cell recruitment, infiltration, and activation. High-density lipoprotein interacts with this process at multiple points, and these interactions could provide therapeutic targets to prevent, stabilize, or even promote the regression of atherosclerosis. High-density lipoprotein may retard atherosclerotic progression by promoting cholesterol efflux from the arterial wall, thereby reducing plaque lipid content as well as potentially inhibiting nascent fatty streak formation. A growing body of evidence derived from clinical trials supports the contention that the raising of high-density lipoprotein levels may confer significant cardiovascular benefit independently of low-density lipoprotein lowering. An antiatherogenic strategy focusing on high-density lipoprotein and its apolipoproteins represents a new frontier in the management of atherosclerosis.