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Human CD2 is functional in CD2 transgenic mice.

E Monostori1, G Lang, D Kioussis

  • 1Cell Surface Biochemistry Lab, Imperial Cancer Research Fund, London.

Immunology
|November 1, 1991
PubMed
Summary
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Human CD2 antigen activation in mice triggers T-cell proliferation and signaling. This study in CD2 transgenic mice shows conserved T-cell activation mechanisms between humans and mice.

Area of Science:

  • Immunology
  • Molecular Biology
  • Cellular Biology

Background:

  • T-cell activation is crucial for adaptive immunity.
  • The CD2 antigen plays a role in T-cell activation.
  • Mouse models are essential for studying human immune responses.

Purpose of the Study:

  • To investigate the biochemical effects of CD2 antigen-mediated T-cell activation in mice.
  • To analyze T-cell activation using human CD2 antigen in transgenic mice.
  • To compare T-cell signaling pathways between humans and mice.

Main Methods:

  • Generation of transgenic mice expressing the human CD2 gene.
  • Stimulation of mouse T-cells using monoclonal antibodies against human CD2.
  • Analysis of T-cell proliferation and intracellular signaling pathways.

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Main Results:

  • Human CD2 antigen in transgenic mice responded to specific monoclonal antibodies, inducing T-cell proliferation.
  • Antibody stimulation led to rapid phosphorylation of the murine CD3 gamma chain and T-cell receptor zeta chain.
  • Demonstrated functionality of the human CD2 antigen in a mouse model.

Conclusions:

  • The human CD2 antigen is functional in CD2 transgenic mice.
  • Significant conservation exists in T-cell signal transduction and activation mechanisms between mice and humans.
  • This study provides insights into cross-species conservation of immune cell activation.