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An Efficient and High Yield Method for Isolation of Mouse Dendritic Cell Subsets
09:09

An Efficient and High Yield Method for Isolation of Mouse Dendritic Cell Subsets

Published on: April 18, 2016

Dendritic cells signal T cells in the absence of exogenous antigen

T Kondo1, I Cortese, S Markovic-Plese

  • 1Cellular Immunology Section, Neuroimmunology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892-1400, USA.

Nature Immunology
|September 19, 2001
PubMed

Insights

Dendritic cells (DCs) activate T cells, promoting their survival and cytokine gene expression independently of antigens. This DC-mediated activation influences immunity and autoimmune diseases like multiple sclerosis.

Area of Science:

  • Immunology
  • Cell Biology
  • Molecular Biology

Background:

  • Mature CD4+ T cell survival depends on interactions with self-major histocompatibility complex molecules on dendritic cells (DCs).
  • Understanding the signaling pathways involved is crucial for deciphering T cell fate and function.

Purpose of the Study:

  • To investigate the DC-mediated signaling cascade from the T cell surface to the nucleus.
  • To identify activation patterns correlating with enhanced T cell survival.
  • To explore the role of DCs in antigen-independent T cell activation and cytokine gene expression.

Main Methods:

  • Tracking DC-mediated signals within T cells.
  • Analyzing T cell activation patterns and survival rates in vitro.
  • Assessing cytokine gene expression profiles following DC activation.

Main Results:

  • A specific pattern of DC-mediated activation correlates with increased in vitro survival of mature CD4+ T cells.
  • This DC-induced response modulates the T cell activation threshold.
  • DC activation leads to antigen-independent cytokine gene expression.

Conclusions:

  • DCs play a significant role in T cell survival and activation beyond antigen presentation.
  • DC-mediated, antigen-independent activation influences the cytokine environment.
  • This mechanism may impact protective immunity and autoimmune conditions like multiple sclerosis.

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