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Updated: Jun 22, 2026

Cholesterol Efflux Assay
Published on: March 6, 2012
Cholesteryl ester transfer protein (CETP) inhibitors
1Merck Research Laboratories, Rahway, NJ 07065, USA. julianne_hunt@merck.com
Insights
Inhibiting cholesteryl ester transfer protein (CETP) increases high-density lipoprotein cholesterol (HDL-C). While this boosts HDL-C levels, its impact on reducing coronary heart disease (CHD) requires further investigation.
Area of Science:
- Cardiovascular Medicine
- Lipid Metabolism
- Pharmacology
Background:
- Epidemiological studies show lower high-density lipoprotein cholesterol (HDL-C) correlates with higher coronary heart disease (CHD) incidence.
- Cholesteryl ester transfer protein (CETP) facilitates lipid transfer from HDL to apoB lipoproteins.
- Targeting CETP is a strategy to elevate HDL-C levels.
Purpose of the Study:
- To review the role of CETP in lipid metabolism.
- To discuss recent advancements in small-molecule CETP inhibitors.
- To explore the future potential of CETP inhibitors for CHD treatment.
Main Methods:
- Review of epidemiological data on HDL-C and CHD.
- Analysis of CETP function in lipid transfer.
- Examination of pharmacological CETP inhibition studies in humans.
Main Results:
- CETP inhibition demonstrably increases plasma HDL-C concentrations.
- Pharmacological inhibition of CETP in humans leads to elevated HDL-C levels.
- The clinical benefit of CETP inhibition on reducing CHD incidence remains to be established.
Conclusions:
- CETP plays a complex role in regulating lipid profiles.
- Small-molecule inhibitors offer a promising avenue for modulating CETP activity.
- Further research is needed to confirm the efficacy of CETP inhibitors in preventing cardiovascular events.
Abstract:
Epidemiological studies have demonstrated an inverse correlation between plasma concentrations of high-density lipoprotein cholesterol (HDL-C) and incidence of coronary heart disease (CHD); thus new therapies for raising HDL-C levels have been the focus of significant efforts by the cardiovascular medicine community. Inhibition of cholesteryl ester transfer protein (CETP) is one approach to increasing HDL-C concentrations. CETP is a plasma glycoprotein that mediates the transfer of cholesteryl esters from HDL to the apoB-containing lipoproteins, with a balanced transfer of triglycerides. Inhibition of CETP results in an accumulation of cholesteryl esters in HDL, thus resulting in increased HDL-C. Pharmacological inhibition of CETP in humans has been shown to result in increased levels of HDL-C, although any beneficial effect of this inhibition on CHD has yet to be established. This review article will discuss the complex role of CETP in lipid metabolism, recent developments for small-molecule inhibitors of CETP, and future prospects for CETP inhibitors in the treatment of CHD.
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