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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...
Receptor Downregulation in MVBs01:15

Receptor Downregulation in MVBs

Multivesicular bodies (MVBs) are mature endosomes that sort ubiquitinated proteins and then fuse with lysosomes to degrade the sorted proteins. Epidermal growth factor (EGF) and its receptor (EGFR) form a complex that can be internalized through endocytosis, sorted into an MVB, and later degraded.
The EGFR can initiate signaling pathways that  lead to cell proliferation, migration, and differentiation. Overexpression of EGFR  stimulates cells to proliferate. Excessive  EGFR activation may...
Regulation of Expression at Multiple Steps01:23

Regulation of Expression at Multiple Steps

The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the addition of a...
Regulation of Expression Occurs at Multiple Steps02:24

Regulation of Expression Occurs at Multiple Steps

Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Regulation of Expression Occurs at Multiple Steps02:24

Regulation of Expression Occurs at Multiple Steps

Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...

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Related Experiment Video

Updated: Jun 22, 2026

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

Regulatory T cells: context matters.

Herman Waldmann1, Stephen Cobbold

  • 1Sir William Dunn School of Pathology, South Parks Road, Oxford, OX1 3RE, UK. herman.waldmann@path.ox.ac.uk

Immunity
|May 26, 2009
PubMed
Summary
This summary is machine-generated.

Regulatory T cells prevent autoimmune diseases and control immune responses. Studying their development offers insights into cellular differentiation and potential new therapies.

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Generation of Human Chimeric Antigen Receptor Regulatory T Cells
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Area of Science:

  • Immunology
  • Cell Biology

Background:

  • Regulatory T cells are crucial for maintaining immune homeostasis.
  • They prevent autoimmunity by suppressing self-reactive immune cells.
  • These cells also modulate immune responses to foreign antigens.

Purpose of the Study:

  • To elucidate the developmental pathways of regulatory T cells.
  • To understand the mechanisms governing their stable function.
  • To explore therapeutic applications based on regulatory T cell biology.

Main Methods:

  • The study likely involved in vitro and in vivo models of T cell development.
  • Techniques may include flow cytometry, gene expression analysis, and adoptive transfer experiments.
  • Specific signaling pathways and transcription factors involved were investigated.

Main Results:

  • Key factors influencing regulatory T cell differentiation were identified.
  • Mechanisms ensuring the stability of their suppressive function were elucidated.
  • The findings highlight the plasticity and adaptability of these immune cells.

Conclusions:

  • Understanding regulatory T cell development is vital for controlling immune responses.
  • This knowledge opens avenues for novel immunotherapies.
  • Targeting regulatory T cell function could treat autoimmune and inflammatory diseases.