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Related Concept Videos

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.
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Tachyphylaxis is described as a rapid decrease in response to a drug after repeated or continuous administration of the same drug dose. It is a phenomenon where the body becomes less responsive to a particular substance or intervention over time, requiring higher doses or stronger interventions to achieve the same effect. It results from adaptive changes in the body's receptors, signaling pathways, or physiological processes that occur in response to prolonged exposure to a stimulus.
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T Cell Activation and Clonal Selection

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Related Experiment Video

Updated: May 11, 2026

Generation of Induced Regulatory T Cells from Primary Human Na&iuml;ve 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

Central tolerance induction.

Maria L Mouchess1, Mark Anderson

  • 1Diabetes Center, University of California-San Francisco, Box 0540, San Francisco, CA, 94143, USA.

Current Topics in Microbiology and Immunology
|May 10, 2013
PubMed
Summary
This summary is machine-generated.

The thymus enforces self-tolerance by regulating developing T cells and antigen-presenting cells. Recent advances explain how autoreactive T cells become regulatory T cells, preventing autoimmunity.

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Adenoviral Transduction of Naive CD4 T Cells to Study Treg Differentiation
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Last Updated: May 11, 2026

Generation of Induced Regulatory T Cells from Primary Human Na&iuml;ve and Memory T Cells
14:23

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Published on: April 16, 2012

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Adenoviral Transduction of Naive CD4 T Cells to Study Treg Differentiation
15:33

Adenoviral Transduction of Naive CD4 T Cells to Study Treg Differentiation

Published on: August 13, 2013

Area of Science:

  • Immunology
  • Cell Biology
  • Autoimmunity

Background:

  • The thymus is crucial for establishing self-tolerance, preventing autoimmune diseases.
  • Understanding T cell interactions with thymic antigen-presenting cells is key to central tolerance.
  • Autoreactive T cell specificities can be directed towards the regulatory T cell lineage.

Purpose of the Study:

  • To review recent advancements in understanding thymic tolerance.
  • To highlight mechanisms of central tolerance induction in the thymus.
  • To discuss the diversion of autoreactive T cells into the regulatory T cell lineage.

Main Methods:

  • Review of current literature on thymic tolerance.
  • Analysis of T cell development and antigen presentation interactions.
  • Examination of regulatory T cell differentiation pathways.

Main Results:

  • Significant progress has been made in understanding central tolerance mechanisms.
  • The role of diverse thymic antigen-presenting cells in T cell education is increasingly clear.
  • Mechanisms for diverting autoreactive T cells into the regulatory T cell lineage are being elucidated.

Conclusions:

  • The thymus actively imposes tolerance on the developing T cell repertoire.
  • Understanding these processes is vital for preventing and treating autoimmune diseases.
  • Continued research promises further insights into immune system regulation.