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CD36 as a lipid sensor.

Céline Martin¹, Michael Chevrot, Hélène Poirier

¹Physiologie de la Nutrition, UMR INSERM U866/Université de Bourgogne, AgroSup Dijon, 1, Esplanade Erasme, 21000 Dijon, France.

Physiology & Behavior

|March 1, 2011

Summary

CD36 acts as a crucial lipid sensor in various cells, detecting dietary lipids and other molecules. This function is vital for regulating energy balance, behavior, and innate immunity.

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Area of Science:

Biochemistry
Molecular Biology
Cell Biology

Background:

CD36 is a scavenger receptor protein found in lipid-metabolizing tissues and hematopoietic cells.
It plays roles in angiogenesis, thrombosis, atherogenesis, Alzheimer's disease, and malaria.
An emerging function of CD36 is its role as a lipid sensor.

Purpose of the Study:

To explore the emerging function of CD36 as a lipid sensor.
To investigate the implications of CD36's lipid-sensing capabilities in physiological processes.

Main Methods:

The study reviews existing literature and research on CD36's structure, localization, and known functions.
Analysis of CD36's interaction with various lipid ligands in different cellular contexts.
Examination of evidence for CD36-dependent lipid sensing in various tissues, including epithelia and the brain.

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Main Results:

CD36's location on the plasma membrane facilitates the binding of exogenous lipids, including dietary lipids and bacterial diglycerides.
Evidence suggests CD36-dependent fatty acid sensing in brain neurons, specifically in the ventromedial hypothalamus.
The conserved nature of CD36 across species highlights its fundamental role in lipid recognition.

Conclusions:

CD36's conserved lipid-sensing ability is crucial for fundamental physiological functions.
This lipid-sensing role influences behavior, energy balance, and innate immunity.
CD36 acts as a key molecular sensor for lipid-related molecules, impacting cellular and organismal responses.