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.
Copyright 2000 Academic Press.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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CD8-Positive T-Lymphocytes / cytology
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CD8-Positive T-Lymphocytes / drug effects
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CD8-Positive T-Lymphocytes / immunology*
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Cell Division / drug effects
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Cells, Cultured
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Gene Expression Regulation / immunology
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Humans
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Interleukin-15 / pharmacology*
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Interleukin-2 / pharmacology
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Receptors, Interleukin-15
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Receptors, Interleukin-2 / genetics
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Receptors, Interleukin-2 / physiology
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Reverse Transcriptase Polymerase Chain Reaction
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T-Lymphocytes / cytology
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T-Lymphocytes / drug effects
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T-Lymphocytes / immunology*
Substances
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IL15RA protein, human
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Interleukin-15
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Interleukin-2
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Receptors, Interleukin-15
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Receptors, Interleukin-2