Related Experiment Video
Updated: Jul 19, 2026

Unraveling Key Players of Humoral Immunity: Advanced and Optimized Lymphocyte Isolation Protocol from Murine Peyer's Patches
Published on: November 21, 2018
Helper T cell-regulated B cell immunity
L J McHeyzer-Williams1, L P Malherbe, M G McHeyzer-Williams
1The Scripps Research Institute, 10550 North Torrey Pines Road, ICND 120, La Jolla, CA 92037, USA.
Abstract:
In this review, we will discuss the cascade of cellular and molecular events in the immune response to protein antigens that regulate the development of high-affinity B cell memory. The behavior of antigen-experienced pMHCII+ dendritic cells DCs and the dynamics of their interaction with specific T-helper (Th) cells define the first developmental checkpoint for adaptive immunity in vivo. Recent studies provide insight into the basis of Th cell clonal selection and the requirements and consequences of antigen priming in this responsive Th cell compartment. Antigen-specific Th cells expand to become the cognate regulators of effector B cell responses and initiators of the germinal center reaction and memory B cell development. We will discuss the development and role of these diverse mixtures of antigen-specific B cells in the control of B cell memory and long-term humoral immunity that underpin effective protein vaccination.
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...
T Cell Types and Functions
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Special Features of Adaptive Immunity
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
Cell-mediated Immune Responses
T Cell Activation and Clonal Selection
Naive T cells that have not yet encountered an antigen express two primary CD...
Antigens Involved in Adaptive Immunity
Complete Antigens
Complete antigens possess both immunogenicity and reactivity.
