Interleukin 15 is a growth factor for human thymocytes with preferential effect on CD8(+)cells

Cytokine. 2000 Jun;12(6):751-5. doi: 10.1006/cyto.1999.0608.

Abstract

The effects of IL-15, as compared to IL-2, on growth of human thymocytes has been evaluated. Expression of comparable amounts of receptor chains was found on IL-2 and IL-15 cultured thymocytes, as well as comparable receptor signalling. However, IL-15 was superior to IL-2 in promoting CD8(+)thymocyte growth, whereas CD4(+)cells proliferated to a higher extent in IL-2 cultures. CD4(+)8(+)and CD4(-)8(-)thymocytes expanded equally well in both culture types.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • CD8-Positive T-Lymphocytes / cytology
  • CD8-Positive T-Lymphocytes / drug effects
  • CD8-Positive T-Lymphocytes / immunology*
  • Cell Division / drug effects
  • Cells, Cultured
  • Gene Expression Regulation / immunology
  • Humans
  • Interleukin-15 / pharmacology*
  • Interleukin-2 / pharmacology
  • Receptors, Interleukin-15
  • Receptors, Interleukin-2 / genetics
  • Receptors, Interleukin-2 / physiology
  • Reverse Transcriptase Polymerase Chain Reaction
  • T-Lymphocytes / cytology
  • T-Lymphocytes / drug effects
  • T-Lymphocytes / immunology*

Substances

  • IL15RA protein, human
  • Interleukin-15
  • Interleukin-2
  • Receptors, Interleukin-15
  • Receptors, Interleukin-2