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Updated: Jun 30, 2026

Mouse Naïve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets
07:12

Mouse Naïve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets

Published on: April 16, 2015

Expression and role of interleukin-2 receptor beta chain on CD4-CD8- T cell receptor alpha beta+ cells [corrected]

Y Takeuchi1, T Tanaka, K Hamamura

  • 1Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo, Japan.

European Journal of Immunology
|November 1, 1992
PubMed

Insights

Interleukin-2 receptor beta (IL-2R beta) is expressed on specific mouse thymocytes and its role in CD4-CD8-TCR alpha beta+ cell development is complex, not solely IL-2 dependent.

Area of Science:

  • Immunology
  • Developmental Biology
  • Cell Biology

Background:

  • The interleukin-2 receptor beta chain (IL-2R beta) plays a crucial role in immune responses.
  • Understanding IL-2R beta expression patterns is key to deciphering T cell development and function.

Purpose of the Study:

  • To investigate the expression of IL-2R beta on murine thymocyte subpopulations.
  • To determine the functional role of IL-2R beta in the development of CD4-CD8-TCR alpha beta+ cells.

Main Methods:

  • Utilized anti-murine IL-2R beta monoclonal antibody (mAb) for expression analysis.
  • Employed fetal thymus organ culture and in vivo blockade experiments to assess IL-2/IL-2R pathway function.

Main Results:

  • IL-2R beta is constitutively expressed on a small subset of thymocytes, with developmentally regulated expression patterns.
  • Expression shifts from T cell receptor gamma delta+ (TcR gamma delta+) cells in fetal mice to CD4-CD8-TcR alpha beta+ thymocytes in adults.
  • IL-2R beta is functional in CD4-CD8-TcR alpha beta+ thymocyte expansion in vitro, but in vivo IL-2/IL-2R blockade does not affect their development.

Conclusions:

  • IL-2R beta expression is developmentally regulated on murine thymocytes.
  • While IL-2R beta is involved in the expansion of CD4-CD8-TcR alpha beta+ cells, IL-2 signaling is not the sole determinant of their development.

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