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Updated: Jun 24, 2026

Screening Assays to Characterize Novel Endothelial Regulators Involved in the Inflammatory Response
Published on: September 15, 2017
CD154 and its receptors in inflammatory vascular pathologies
Ghada S Hassan1, Yahye Merhi, Walid M Mourad
1Laboratoire d'Immunologie Cellulaire et Moléculaire, Centre Hospitalier de l'Université de Montréal, Hôpital Saint-Luc, Montréal, QC H2X 1P1, Canada.
Insights
CD154, a tumor necrosis factor-alpha family member, plays a key role in vascular diseases like atherosclerosis. Blocking CD154 or its receptor CD40 can prevent these conditions.
Area of Science:
- Immunology
- Vascular Biology
- Cellular Biology
Background:
- CD154 (tumor necrosis factor-alpha family) is implicated in vascular disease pathophysiology.
- CD154 blockade in mice prevents atherosclerosis and atherothrombosis.
- CD154 interacts with CD40, alphaIIbbeta3 integrin, alpha5beta1 integrin, and Mac-1.
Purpose of the Study:
- To illustrate the functional features of CD154 receptors.
- To describe the role of CD40 in CD154-associated vascular pathologies.
Main Methods:
- Review of existing literature and functional studies.
- Analysis of CD154 interactions with various receptors.
- Examination of CD40's role in atherosclerosis and atherothrombosis.
Main Results:
- CD154 blockade prevents atherosclerosis and atherothrombosis.
- CD154 binds to CD40, alphaIIbbeta3 integrin, alpha5beta1 integrin, and Mac-1.
- These interactions contribute to platelet activation and vascular disease.
Conclusions:
- CD154 and its receptors, particularly CD40, are critical in vascular pathologies.
- Targeting CD154 or CD40 may offer therapeutic strategies for atherosclerosis and atherothrombosis.
Abstract:
CD154, a member of the tumor necrosis factor-alpha family, has recently been implicated in the pathophysiology of vascular diseases. Indeed, blockade of CD154 by neutralizing antibodies or genetic disruption in mice prevents atherosclerosis and atherothrombosis. CD154 is believed to interact mainly via the CD40 receptor, however, it has also been found to bind with alphaIIbbeta3 integrin and so induces platelet activation. Moreover, we (and others) have recently identified the integrins alpha5beta1 and Mac-1 as novel CD154 receptors expressed on many cell types. Here, we illustrate the various functional features of these molecules, while describing the increasingly important role of CD40 in CD154-associated vascular pathologies such as atherosclerosis and atherothrombosis.
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