Abstract
The triggering requirements of T cells differ for primed and unprimed cells: primed T cells can be triggered to produce lymphokines without viable antigen-presenting cells (APCs), apparently by crosslinking the T-cell receptor (TCR). Unprimed T cells do, however, require viable APCs and here Jonathan Sprent and Mary Schaefer review what type of cells can carry out this function, with particular reference to APCs for unprimed CD8+ cells.
Publication types
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Research Support, U.S. Gov't, P.H.S.
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Review
MeSH terms
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Animals
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Antigen-Presenting Cells / classification
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Antigen-Presenting Cells / immunology*
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Antigens, Neoplasm / immunology
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Cells, Cultured
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Dendritic Cells / immunology
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H-2 Antigens / immunology*
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Histocompatibility Antigens Class II / immunology
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Lymphocyte Activation
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Macrophages / immunology
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Mice
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Models, Biological
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T-Lymphocytes / classification
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T-Lymphocytes / immunology*
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T-Lymphocytes, Regulatory / immunology
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Tumor Cells, Cultured / immunology
Substances
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Antigens, Neoplasm
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H-2 Antigens
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Histocompatibility Antigens Class II