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Related Concept Videos

Cells of the Adaptive Immune Response01:23

Cells of the Adaptive Immune Response

The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
T Cell Types and Functions01:24

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...
T Cell Activation and Clonal Selection01:22

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...
Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

Overview
Immunological Memory01:23

Immunological Memory

Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature is...
Special Features of Adaptive Immunity01:20

Special Features of Adaptive Immunity

The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
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,...

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Related Experiment Video

Updated: May 23, 2026

In Vitro Resident Memory CD8 T Cell Differentiation Using Epithelial Organoid-T Cell Co-culture System
09:48

In Vitro Resident Memory CD8 T Cell Differentiation Using Epithelial Organoid-T Cell Co-culture System

Published on: February 3, 2026

Behavior and function of tissue-resident memory T cells.

Silvia Ariotti1, John B Haanen, Ton N Schumacher

  • 1Division of Immunology, The Netherlands Cancer Institute, Plesmanlaan, Amsterdam, The Netherlands.

Advances in Immunology
|March 28, 2012
PubMed
Summary

This study explores tissue-resident memory T cells (T(TRM)), distinct from circulating cells, highlighting their potential role in long-term immunity and vaccination strategies.

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Last Updated: May 23, 2026

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Area of Science:

  • Immunology
  • Cell Biology

Background:

  • Current understanding of memory T cell function primarily focuses on circulating populations.
  • Emerging evidence indicates the existence of tissue-resident memory T cells (T(TRM)) at sites of prior antigen exposure.

Purpose of the Study:

  • To discuss the potential functions of long-term tissue-resident memory T cells (T(TRM)).
  • To explore mechanisms for maintaining local T cell memory.
  • To examine the potential exploitation of T(TRM) induction in vaccination.

Main Methods:

  • Review of existing literature on T cell memory.
  • Analysis of emerging evidence regarding tissue-resident immune cells.

Main Results:

  • Identified a distinct population of tissue-resident memory T cells (T(TRM)) separate from circulating memory T cells.
  • Highlighted the potential for long-term local immune memory maintenance within tissues.

Conclusions:

  • Tissue-resident memory T cells (T(TRM)) represent a significant, yet understudied, component of the immune system.
  • Understanding T(TRM) function and maintenance is crucial for developing effective vaccination strategies.
  • Targeting T(TRM) induction holds promise for enhancing long-term protective immunity.