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Related Concept Videos

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...
Inflammatory Response01:28

Inflammatory Response

An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
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...
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...

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Related Experiment Video

Updated: Jun 23, 2026

Phenotypic and Functional Analysis of Activated Regulatory T Cells Isolated from Chronic Lymphocytic Choriomeningitis Virus-infected Mice
07:17

Phenotypic and Functional Analysis of Activated Regulatory T Cells Isolated from Chronic Lymphocytic Choriomeningitis Virus-infected Mice

Published on: June 22, 2016

The development and function of regulatory T cells.

Creg J Workman1, Andrea L Szymczak-Workman, Lauren W Collison

  • 1Department of Immunology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105-3678, USA.

Cellular and Molecular Life Sciences : CMLS
|April 25, 2009
PubMed
Summary
This summary is machine-generated.

Regulatory T cells (Tregs) are vital for immune tolerance but can hinder anti-tumor and anti-pathogen responses. This review covers Treg development, function, and their dual role in disease.

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Regulatory T cells: Therapeutic Potential for Treating Transplant Rejection and Type I Diabetes
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Regulatory T cells: Therapeutic Potential for Treating Transplant Rejection and Type I Diabetes

Published on: August 20, 2007

Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells
14:23

Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells

Published on: April 16, 2012

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Last Updated: Jun 23, 2026

Phenotypic and Functional Analysis of Activated Regulatory T Cells Isolated from Chronic Lymphocytic Choriomeningitis Virus-infected Mice
07:17

Phenotypic and Functional Analysis of Activated Regulatory T Cells Isolated from Chronic Lymphocytic Choriomeningitis Virus-infected Mice

Published on: June 22, 2016

Regulatory T cells: Therapeutic Potential for Treating Transplant Rejection and Type I Diabetes
16:26

Regulatory T cells: Therapeutic Potential for Treating Transplant Rejection and Type I Diabetes

Published on: August 20, 2007

Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells
14:23

Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells

Published on: April 16, 2012

Area of Science:

  • Immunology
  • Cell Biology

Background:

  • Regulatory T cells (Tregs) are essential for maintaining immune homeostasis and preventing autoimmunity.
  • Tregs are broadly classified into natural Tregs (thymus-derived) and induced Tregs (peripherally derived).

Purpose of the Study:

  • To review the developmental pathways of natural and induced Tregs.
  • To explore the multifaceted roles of Tregs in various disease contexts.
  • To elucidate the suppressive mechanisms employed by Tregs.

Main Methods:

  • This is a review article, synthesizing existing research.
  • Key literature on Treg development, function, and disease association was analyzed.
  • Mechanisms of Treg-mediated immune suppression were examined.

Main Results:

  • Tregs play a critical role in peripheral tolerance by suppressing self-reactive T cells.
  • Both natural and induced Tregs exhibit diverse suppressive mechanisms.
  • Tregs can be detrimental, impairing effective anti-tumor immunity and pathogen clearance.

Conclusions:

  • Understanding Treg biology is crucial for therapeutic interventions in autoimmune diseases, cancer, and infections.
  • The dual role of Tregs necessitates careful consideration in clinical applications.
  • Further research into Treg-specific mechanisms can unlock new treatment strategies.