Related Experiment Video

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A High-Throughput Luciferase Assay to Evaluate Proteolysis of the Single-Turnover Protease PCSK9
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A High-Throughput Luciferase Assay to Evaluate Proteolysis of the Single-Turnover Protease PCSK9

Published on: August 28, 2018

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The Emerging Role of PCSK9 Inhibitors in Preventive Cardiology

Reynaria N Pitts1, Robert H Eckel1

  • 1Charles A. Boettcher II Chair in Atherosclerosis, University of Colorado Anschutz Medical Campus, Aurora, CO, US.

European Cardiology
|October 13, 2018
PubMed

Insights

New PCSK9 inhibitors offer hope for reducing cardiovascular disease (CVD) risk. These treatments effectively lower low-density lipoprotein cholesterol (LDL-C) in patients unresponsive to statins, potentially decreasing CVD events.

Area of Science:

  • Cardiovascular Medicine
  • Biochemistry
  • Pharmacology

Background:

  • Low-density lipoprotein cholesterol (LDL-C) is a primary risk factor for coronary artery disease (CAD) and atherosclerotic cardiovascular disease (CVD).
  • Residual CVD risk persists in patients with familial hypercholesterolemia or statin intolerance, even with lifestyle changes and statin therapy.
  • PCSK9 protein plays a crucial role in regulating LDL receptor (LDL-R) degradation, impacting LDL-C levels.

Purpose of the Study:

  • To investigate the efficacy of humanized monoclonal antibodies targeting PCSK9 for lowering LDL-C.
  • To evaluate the potential of PCSK9 inhibitors in reducing residual cardiovascular risk.
  • To assess the safety and tolerability of PCSK9 inhibitor therapy.

Main Methods:

  • Development of humanized monoclonal antibodies (evolocumab, alirocumab, bocolicumab) that inhibit PCSK9.
  • Administration of these antibodies to patients with elevated LDL-C.
  • Monitoring of LDL-C levels, LDL-R expression, and adverse events.

Main Results:

  • PCSK9 inhibitors increase LDL-R expression by approximately twofold.
  • These antibodies achieve up to a 75% reduction in LDL-C levels.
  • The effect of PCSK9 inhibitors is synergistic with statins, with local injection site reactions as the primary adverse effect.

Conclusions:

  • Ongoing Phase III trials with PCSK9 inhibitors show promise for reducing CVD events and mortality in high-risk patients.
  • PCSK9 inhibition represents a significant advancement in managing hypercholesterolemia and reducing residual cardiovascular risk.
  • These novel therapies offer a new therapeutic avenue for patients unable to achieve adequate LDL-C lowering with current treatments.

Keywords:
CHDCVDLDL receptorLDL-CPCSK9preventionstatins

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