Related Experiment Video
Updated: Oct 4, 2025

Cholesterol Efflux Assay
Published on: March 6, 2012
Transintestinal cholesterol excretion in health and disease
Damien Garçon1, Jean-Matthieu Berger2, Bertrand Cariou1
1Nantes Université, CHU Nantes*, CNRS, INSERM, l'institut du thorax, F-44000, Nantes, France.
Purpose Of Review:
The transintestinal cholesterol efflux (TICE) pathway is the second described route for plasma cholesterol fecal elimination. This article summarizes recent TICE research progresses, involving TICE inducers, molecular determinants of this pathway, and its role in lipoprotein metabolism.
Recent Findings:
TICE is an active pathway in mice, rats, and humans. Kinetic measurements showed that under basal conditions, the relative contribution of TICE in fecal elimination of plasma cholesterol is quantitatively less important than the hepatobiliary pathway. However, the amplitude of TICE can be induced by numerous nutritional factors and pharmacological drugs. More importantly, by contrast with the stimulation of biliary cholesterol excretion that is associated with an increased risk of gallstone formation, TICE appears as a safer therapeutical target. Finally, several independent studies have demonstrated that TICE is actively contributing to the anti-atherogenic reverse cholesterol pathway reinforcing the interest to better understand its mode of action. The discovery of TICE and the understanding of its mode of action open new therapeutical perspectives for patients at high risk of cardiovascular diseases.
Insights
The transintestinal cholesterol efflux (TICE) pathway aids plasma cholesterol elimination. Inducing TICE offers a safer therapeutic target for cardiovascular disease than other methods.
Area of Science:
- Cardiovascular Science
- Metabolic Pathways
- Cholesterol Homeostasis
Background:
- The transintestinal cholesterol efflux (TICE) pathway is a key route for eliminating plasma cholesterol from the body.
- While less significant than the hepatobiliary pathway under basal conditions, TICE can be modulated by various factors.
- Understanding TICE is crucial for managing cholesterol metabolism and cardiovascular health.
Purpose of the Study:
- To review recent advancements in transintestinal cholesterol efflux (TICE) research.
- To explore TICE inducers, its molecular underpinnings, and its role in lipoprotein metabolism.
- To highlight TICE as a potential therapeutic target for cardiovascular diseases.
Main Methods:
- Review of current scientific literature on TICE.
- Analysis of kinetic measurements and experimental data related to cholesterol efflux pathways.
- Comparative assessment of TICE versus hepatobiliary cholesterol excretion.
Main Results:
- TICE is an active pathway in humans, mice, and rats.
- Nutritional factors and drugs can significantly induce TICE.
- Unlike enhanced biliary excretion, TICE induction does not increase gallstone risk.
- TICE plays a role in the anti-atherogenic reverse cholesterol pathway.
Conclusions:
- TICE represents a promising and safer therapeutic target for managing plasma cholesterol levels.
- Modulating TICE offers new strategies for preventing and treating cardiovascular diseases.
- Further research into TICE mechanisms can unlock novel treatments for high-risk patients.
Related Concept Videos
Cholesterol: Significance and Regulation
Considering cholesterol and...
Lipid Absorption
These breakdown products bind with bile salts and lecithin to form micelles, which quickly pass between microvilli to come in close contact with the apical...
Drug Excretion: Miscellaneous Routes
Hepatic Drug Excretion: Influencing Factors
Hepatic Drug Excretion: Enterohepatic Cycling
Post-release drugs and metabolites can be reabsorbed into the body from the intestine. For conjugated metabolites like glucuronides, reabsorption requires enzymatic hydrolysis by intestinal microflora. This...
Lipids: Dietary Sources and Requirements

