Related Experiment Video
Updated: Aug 8, 2026

12:24
Murine Model of CD40-activation of B cells
Published on: March 6, 2010
Central role for CD40/CD40 ligand (CD154) interactions in transplant rejection
M D Denton1, R M Reul, V R Dharnidharka
1Department of Pediatrics, Children's Hospital, Boston, Massachusetts 02115, USA.
Pediatric Transplantation
|March 20, 1999
Summary
CD40/CD154 interactions are crucial for immune responses and allograft rejection. Interrupting this pathway shows promise in transplantation models, paving the way for new human therapies.
Area of Science:
- Immunology
- Transplantation Biology
Background:
- CD40 and its ligand CD154 (also known as CD154) play key roles in immune system regulation.
- CD40/CD154 interactions are vital for T cell activation, macrophage activation, B cell interactions, and endothelial cell activation.
Purpose of the Study:
- To review the significance of CD40/CD154 interactions in the immune response.
- To highlight the role of CD40/CD154 in allograft rejection.
- To discuss therapeutic strategies for interrupting CD40/CD154 signaling in transplantation.
Main Methods:
- Review of major advances in understanding CD40/CD154 expression and function.
- Analysis of functional studies using blocking monoclonal antibodies in animal transplantation models.
- Examination of evidence supporting the role of CD40/CD154 in allograft rejection.
Main Results:
- CD40/CD154 interactions are critical for multiple immune processes.
- These interactions are central to the immune mechanisms of allograft rejection.
- Interrupting CD40/CD154 co-stimulation, especially with CD28/B7 pathway interruption, shows benefits in transplantation models.
Conclusions:
- Targeting the CD40/CD154 pathway is a promising therapeutic strategy for allograft rejection.
- Future research should focus on developing human receptor antagonists or understanding intracellular signaling pathways.
- Developing novel therapies to block CD40/CD154 co-stimulation is essential for improving transplantation outcomes.
Related Concept Videos
Cell-mediated Immune Responses
Overview
T Cell Activation and Clonal Selection
T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
Naive T cells that have not yet encountered an antigen express two primary CD...
Naive T cells that have not yet encountered an antigen express two primary CD...
T Cell Types and Functions
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Tissue Transplantation
Tissue transplantation is a significant medical procedure involving the transfer of cells, tissues, or organs from a donor to a recipient, with the primary aim of restoring lost functions. This procedure is crucial in treating a broad spectrum of diseases, including kidney diseases, liver failure, heart disease, and certain types of cancers.
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...

