Related Experiment Video
Updated: Jun 4, 2026

High-Density Lipoprotein-Specific Phospholipid Efflux Assay
Published on: September 30, 2025
The ABC transporters in lipid flux and atherosclerosis
Iryna Voloshyna1, Allison B Reiss
1Department of Medicine, Winthrop-University Hospital, 222 Station Plaza North, Mineola, NY 11501, USA.
Insights
ATP-binding cassette (ABC) transporters are crucial for maintaining lipid homeostasis and preventing atherosclerosis. This review highlights their biogenesis and atheroprotective functions in reverse cholesterol transport.
Area of Science:
- Biochemistry
- Molecular Biology
- Cardiovascular Science
Background:
- Atherosclerotic cardiovascular disease is a major global health concern.
- Impaired lipid homeostasis is central to atherosclerosis development.
- ATP-binding cassette (ABC) transporters regulate lipid transport and cellular homeostasis.
Purpose of the Study:
- To review the biogenesis of ABC transporters.
- To highlight the atheroprotective roles of ABC transporters.
- To discuss their involvement in reverse cholesterol transport.
Main Methods:
- Literature review of current research on ABC transporter biogenesis and function.
- Analysis of studies focusing on lipid efflux and reverse cholesterol transport.
- Synthesis of findings related to atheroprotection.
Main Results:
- ABC transporters are essential for cellular cholesterol and phospholipid efflux.
- These transporters play a critical role in reverse cholesterol transport (RCT).
- Dysfunctional lipid transport mediated by ABC transporters contributes to atherosclerosis.
Conclusions:
- ABC transporters are key regulators of lipid homeostasis.
- Their biogenesis and function are critical for preventing arterial plaque formation.
- Targeting ABC transporters may offer therapeutic strategies for atherosclerosis.
Abstract:
Atherosclerotic cardiovascular disease is the leading cause of morbidity and mortality in the United States and in many other countries. Dysfunctional lipid homeostasis plays a central role in the initiation and progression of atherosclerotic lesions. The ATP-binding cassette (ABC) transporters are transmembrane proteins that hydrolyze ATP and use the energy to drive the transport of various molecules across cell membranes. Several ABC transporters play a pivotal role in lipid trafficking. They are critically involved in cholesterol and phospholipid efflux and reverse cholesterol transport (RCT), processes that maintain cellular cholesterol homeostasis and protect arteries from atherosclerosis. In this article we provide a review of the current literature on the biogenesis of ABC transporters and highlight their proposed functions in atheroprotection.
Related Concept Videos
ABC Transporters: Exporter
ABC Transporters: Importer
In bacteria, based on the number of transmembrane helices and the chemical nature of their substrates, the ABC importers can be divided into three types:
Membrane Asymmetry Regulating Transporters
Flippase
Eukaryotic flippases are type-IV P-type ATPases or P4-ATPases belonging to P-type ATPase family proteins that are membrane-bound pumps involved in the ATP-mediated transport of ions and molecules across the membrane. Flippases flip specific phospholipids from the outer to the inner leaflet of a membrane. All P4-ATPases have one...
Carrier-Mediated Transport
Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
Atherosclerosis I: Introduction
Pharmacogenetics of Drug Transporters: P-Glycoprotein and Solute Carrier Transporters

