Related Experiment Video

Updated: Jun 3, 2026

Assessment of Antibody-based Drugs Effects on Murine Bone Marrow and Peritoneal Macrophage Activation
10:35

Assessment of Antibody-based Drugs Effects on Murine Bone Marrow and Peritoneal Macrophage Activation

Published on: December 26, 2017

Intravenous immunoglobulin modulates the maturation of TLR 4-primed peripheral blood monocytes

Mark Ballow1, Cheryl Allen

  • 1Allergy/Clinical Immunology Division, Women and Children's Hospital, 219 Bryant St, Buffalo, NY 14222, USA. ballow@buffalo.edu

Clinical Immunology (Orlando, Fla.)
|March 17, 2011
PubMed

Intravenous immunoglobulin (IgIV) has immune modulating effects on the differentiation and function of dendritic cells (DC). Peripheral blood CD14+ monocytes were induced to differentiate into immature DC with IL-4/GM-CSF. DC maturation was analyzed by flow cytometry, and function assessed for antigen uptake and antigen processing. IgIV added during the differentiation process induced immature DC to differentiate into a mature DC with increased expression of CD83 and CCR7. A "priming" step with low concentrations of LPS or other TLR agonists that utilize the myD88 signaling pathway was necessary to observe these changes. These modulated DCs had reduced antigen uptake, but exhibited increased antigen presentation. Treatment of the IgIV with pepsin to generate F(ab')2 fragments abrogated these effects on DC maturation and function. The enhanced differentiation of PBM into DC required two signals: an initial exposure to low concentrations of LPS followed by IVIG. The second signal with IVIG was Fc dependent.

More Related Videos

Single-cell Analysis of Immunophenotype and Cytokine Production in Peripheral Whole Blood via Mass Cytometry12:36

Single-cell Analysis of Immunophenotype and Cytokine Production in Peripheral Whole Blood via Mass Cytometry

Published on: June 26, 2018

Mouse Naïve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets07:12

Mouse Naïve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets

Published on: April 16, 2015

Related Concept Videos

B Cell Activation and Differentiation01:24

B Cell Activation and Differentiation

The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
Development of Immunocompetence01:22

Development of Immunocompetence

The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...