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Published on: September 26, 2018
PCSK9: A key factor modulating atherosclerosis
1Division of Dyslipidemia, State Key Laboratory of Cardiovascular Disease, Fu Wai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College.
Insights
Proprotein convertase subtilisin/kexin type 9 (PCSK9) plays a key role in cholesterol regulation and inflammation, contributing to atherosclerosis. PCSK9 inhibition shows promise for treating coronary artery disease (CAD), potentially offering effective prophylaxis.
Area of Science:
- Cardiovascular Medicine
- Biochemistry
- Pharmacology
Background:
- Coronary artery disease (CAD) from obstructive atherosclerosis is a major global health concern.
- Lowering low-density lipoprotein cholesterol (LDL-C) has been central to managing atherosclerotic cardiovascular disease for over 20 years.
- Proprotein convertase subtilisin/kexin type 9 (PCSK9) regulates cholesterol homeostasis by affecting LDL receptor degradation and is implicated in inflammation.
Purpose of the Study:
- To review the physiological role of PCSK9 in atherosclerosis.
- To evaluate PCSK9 as a novel pharmacological target for cardiovascular disease.
- To discuss the clinical potential of PCSK9 inhibition in treating hyperlipidemia and CAD.
Main Methods:
- Literature review of PCSK9's physiological functions.
- Analysis of existing clinical data on PCSK9 inhibition.
- Overview of PCSK9's role in cholesterol metabolism and inflammation.
Main Results:
- PCSK9 is integral to cholesterol homeostasis and influences atherosclerotic processes.
- Plasma PCSK9 levels correlate with cardiovascular risk factors.
- PCSK9 inhibition is emerging as a significant therapeutic strategy.
Conclusions:
- PCSK9 is a critical factor in the development of atherosclerosis.
- Targeting PCSK9 offers a promising new avenue for treating hyperlipidemia and CAD.
- PCSK9 inhibition may provide effective prophylaxis against CAD for a broader patient population.
Abstract:
Coronary artery disease (CAD) due to obstructive atherosclerosis is a leading cause of death and has been recognized as a worldwide health threat. Measures to decrease low-density lipoprotein cholesterol (LDL-C) levels are the cornerstone in the management of patients with atherosclerotic cardiovascular disease, particularly those with CAD, for over two decades. Proprotein convertase subtilisin/kexin type 9 (PCSK9), a newly recognized protein, plays a key role in cholesterol homeostasis by enhancing degradation of hepatic LDL receptor (LDLR). Interestingly, PCSK9 is also involved in the inflammatory process. Plasma PCSK9 and lipid or nonlipid cardiovascular risk factors are correlated, and the associations between PCSK9 with cardiovascular health and disease make this protein worthy of attention for the treatment of hyperlipidemia and atherosclerosis. Here, we provide an overview of the physiological role of PCSK9, which contributes to atherosclerosis, and provide data on PCSK9 as a novel pharmacological target. Clinical evidence shows that PCSK9 inhibition is as promising as statins as a target to treat CAD. The efficacy of these drugs may potentially enable effective CAD prophylaxis for more patients.
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