Related Experiment Video
Updated: Aug 24, 2026

Induction of Murine Intestinal Inflammation by Adoptive Transfer of Effector CD4+CD45RBhigh T Cells into Immunodeficient Mice
Published on: April 21, 2015
c-Maf and JunB mediation of Th2 differentiation induced by the type 2 G protein-coupled receptor (VPAC2) for
Julia Voice1, Samantha Donnelly, Glenn Dorsam
1Departments of Medicine and Microbiology/Immunology, Medical Center, University of California-San Francisco, 533 Parnassus at 4th, San Francisco, CA 94143, USA.
Abstract:
Vasoactive intestinal peptide and its G protein-coupled receptors, VPAC(1) and VPAC(2), regulate critical aspects of innate and adaptive immunity. T cell VPAC(2)Rs mediate changes in cytokine generation, which potently increase the Th2/Th1 ratio and consequently shift the effector responses toward allergy and inflammation. To examine mechanisms of VPAC(2) promotion of the Th2 phenotype, we analyzed controls of IL-4 transcription in CD4 T cells from T cell-targeted VPAC(2) transgenic (Tg), VPAC(2) knockout, and wild-type (WT) mice. c-maf and junB mRNA, protein, and activity were significantly up-regulated to a higher level in TCR-stimulated CD4 T cells from Tg mice compared with those from knockout and WT C57BL/6 mice. In contrast, GATA3, T-bet, and NFATc levels were identical in WT and Tg CD4 T cells. Vasoactive intestinal peptide binding to VPAC(2) on CD4 T cells specifically induces an up-regulation of the Th2-type transcription factors c-Maf and JunB, which consequently enhances IL-4 and IL-5 production, leading to a Th2-type phenotype.
More Related Videos
Related Concept Videos
B Cell Activation and Differentiation
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...
TGF - β Signaling Pathway
Role Of Notch Signalling In Intestinal Stem Cell Renewal
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
GPCRs Regulate Adenylyl Cylase Activity
Two...
T Cell Types and Functions
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Calmodulin-dependent Signaling
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...

