Related Experiment Video
Updated: Jun 5, 2026
Murine Model of CD40-activation of B cells
Published on: March 5, 2010
The CD40-CD40L system in cardiovascular disease
Burak Pamukcu1, Gregory Y H Lip, Viktor Snezhitskiy
1University of Birmingham Centre for Cardiovascular Sciences , City Hospital, Birmingham, England UK.
Insights
The CD40-CD40L pathway, particularly soluble CD40L (sCD40L) from platelets, drives atherosclerosis and thrombosis. Blocking this system may prevent cardiovascular disease, but sCD40L
Area of Science:
- Cardiovascular Biology
- Immunology
- Biomarker Research
Background:
- The CD40-CD40L signaling pathway is implicated in prothrombotic and proinflammatory processes.
- CD40 and its ligand are expressed on various immune cells, including platelets.
- Soluble CD40L (sCD40L), primarily from activated platelets, contributes to atherosclerosis and atherothrombosis.
Purpose of the Study:
- To review the role of CD40-CD40L signaling in atherosclerotic vascular diseases.
- To examine the potential of sCD40L as a biomarker for cardiovascular risk and outcomes.
- To discuss the therapeutic implications of targeting the CD40-CD40L pathway.
Main Methods:
- Literature review of studies investigating CD40-CD40L signaling in atherosclerosis.
- Analysis of research on sCD40L as a predictor of cardiovascular events.
- Evaluation of data on anti-CD40L therapies for atherosclerotic conditions.
Main Results:
- sCD40L enhances platelet activation, aggregation, and platelet-leukocyte conjugation, promoting atherothrombosis.
- Elevated sCD40L levels predict cardiovascular disease risk in healthy individuals and adverse outcomes in acute coronary syndromes.
- Blockade of CD40-CD40L signaling shows potential in preventing or slowing atherosclerosis progression.
Conclusions:
- The CD40-CD40L pathway, especially sCD40L, plays a significant role in the pathophysiology of atherosclerotic vascular diseases.
- sCD40L holds promise as a cardiovascular biomarker, though its clinical application requires further clarification.
- Targeting CD40-CD40L interactions represents a potential therapeutic strategy for managing atherosclerosis and related conditions.
Abstract:
The CD40-CD40L system is a pathway which is associated with both prothrombotic and proinflammatory effects. CD40 and its ligand were first discovered on the surface of activated T cells, but its presence on B cells, antigen-presenting cells, mast cells, and finally platelets, is evident. The soluble form of CD40L (sCD40L) is derived mainly from activated platelets and contributes to the pathophysiology of atherosclerosis and atherothrombosis. Indeed, sCD40L has autocrine, paracrine, and endocrine activities, and it enhances platelet activation, aggregation, and platelet-leucocyte conjugation that may lead to atherothrombosis. It has even been suggested that sCD40L may play a pathogenic role in triggering acute coronary syndromes. Conversely, blockade of this pathway with anti-CD40L antibodies may prevent or delay the progression of atherosclerosis. Concentrations of sCD40L also predict risk of future cardiovascular disease in healthy women and clinical outcomes in patients with acute coronary syndromes. However, there are controversial and uncertain points over the application of this biomarker to clinical cardiology. In this review, we provide an overview of potential implications of CD40-CD40L signalling and sCD40L as a biomarker in patients with atherosclerotic vascular diseases.
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