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Related Concept Videos

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...
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...
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 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
Cytotoxic T Cells-mediated Immune Response01:27

Cytotoxic T Cells-mediated Immune Response

Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...

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Murine Superficial Lymph Node Surgery
04:36

Murine Superficial Lymph Node Surgery

Published on: May 21, 2012

Interleukin-2 tickles T cell memory.

Gabrielle T Belz1, Frédérick Masson

  • 1Division of Immunology, The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Melbourne, Victoria 3052, Australia. belz@wehi.edu.au

Immunity
|February 16, 2010
PubMed
Summary

Peripheral T lymphocyte differentiation is governed by intrinsic and extrinsic factors. New research links interleukin-2 signaling and inflammation to the development of effector and memory T cells.

Area of Science:

  • Immunology
  • Cellular Biology

Background:

  • Peripheral T lymphocyte differentiation is a complex process.
  • It involves the interplay of intrinsic cellular programs and extrinsic environmental signals.

Purpose of the Study:

  • To investigate the molecular mechanisms driving T cell differentiation.
  • To understand how cytokine signaling and inflammatory cues influence T cell fate.

Main Methods:

  • Analysis of gene expression patterns.
  • Studies on interleukin-2 signaling pathways.
  • Investigation of inflammatory responses in T lymphocytes.

Main Results:

  • Differential interleukin-2 signaling plays a critical role in T cell development.
  • Inflammation is linked to specific transcriptional events during differentiation.

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  • These factors collectively guide the formation of effector and memory T cell populations.

    • Conclusions:

    • Interleukin-2 signaling and inflammation are key regulators of T cell differentiation.
    • Understanding these pathways is crucial for developing targeted immunotherapies.