Related Experiment Video
Updated: Aug 10, 2026

An Efficient and High Yield Method for Isolation of Mouse Dendritic Cell Subsets
Published on: April 18, 2016
Common variable immunodeficiency is associated with defective functions of dendritic cells
Jagadeesh Bayry1, Sébastien Lacroix-Desmazes, Michel D Kazatchkine
1INSERM U430, Institut des Cordeliers, 15, rue de l'Ecole de Médecine, 75006 Paris, France. srini.kaveri@u430.bhdc.jussieu.fr
Insights
Common variable immunodeficiency (CVID) involves impaired dendritic cell (DC) function, hindering T-cell responses. These DC defects contribute to CVID
Area of Science:
- Immunology
- Cell Biology
- Clinical Medicine
Background:
- Common variable immunodeficiency (CVID) is a primary immunodeficiency characterized by hypogammaglobulinemia and impaired T-cell function.
- Dendritic cells (DCs) are crucial for initiating adaptive immune responses and T-cell activation.
Purpose of the Study:
- To investigate the role and function of dendritic cells (DCs) in patients with Common variable immunodeficiency (CVID).
Main Methods:
- Analysis of DC differentiation, maturation, and function in CVID patients.
- Assessment of costimulatory molecule expression on DCs.
- Evaluation of DC-induced T-cell proliferation and cytokine production (IL-12).
Main Results:
- DCs from CVID patients exhibited severely impaired differentiation, maturation, and function.
- Reduced expression of critical costimulatory molecules was observed on CVID patient DCs.
- DCs from CVID patients induced weak allogeneic T-cell proliferation and produced significantly lower levels of IL-12.
Conclusions:
- Dendritic cell dysfunction is a prominent feature of Common variable immunodeficiency (CVID).
- Impaired innate and adaptive immune compartments, including DC defects, contribute to CVID pathophysiology and increased susceptibility to infections.
Abstract:
Common variable immunodeficiency (CVID) is characterized by hypogammaglobulinemia and defects in T-cell functions that could be primary or secondary. We addressed whether CVID is associated with impairment in the dendritic cell (DC) compartment, as DCs play a central role in the development of adaptive immunity. We demonstrate that DCs from CVID patients display severely perturbed differentiation, maturation, and function, and express markedly reduced levels of the costimulatory molecules that are critical for T-cell stimulation. Patients' DCs induced weak proliferation of allogeneic T cells and produced significantly low amounts of interleukin-12 (IL-12) upon CD40 signaling. Multiple defects in the immune system, including malfunctioning of DCs, appear to be prominent features of CVID patients. Impairment in both the innate and adaptive compartments of the immune system may thus cumulatively account for the inability of CVID patients to eradicate pathogens through conventional immune pathways, thus resulting in an increased risk for recurrent bacterial infections.
Related Concept Videos
Cell-mediated Immune Responses
T Cell Activation and Clonal Selection
Naive T cells that have not yet encountered an antigen express two primary CD...
T Cell Types and Functions
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Immune Response Against Viral Pathogens
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
Immunodeficiency Diseases
There are three main causes of immunodeficiency disorders...
Cytomegalovirus Disease

