Abstract
CD28 is the primary co-stimulatory receptor for inducing high-level IL-2 production and survival of naïve CD4(+) T cells. While no other cell surface receptor can be considered fully redundant with CD28, recent developments suggest that additional co-stimulatory pathways have preferential effects at different stages of T cell activation, on different subsets of T cells or contribute to the development of different effector functions.
MeSH terms
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Animals
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Antigens, CD / metabolism
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CD24 Antigen
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CD28 Antigens / metabolism*
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Cell Adhesion Molecules / metabolism
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Humans
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Intercellular Adhesion Molecule-1 / metabolism
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Lymphocyte Activation
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Lymphocyte Function-Associated Antigen-1 / metabolism
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Membrane Glycoproteins*
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Receptors, Nerve Growth Factor / metabolism
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Receptors, OX40
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Receptors, Tumor Necrosis Factor / metabolism
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Signal Transduction
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T-Lymphocytes / immunology*
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Tumor Necrosis Factor Receptor Superfamily, Member 7 / metabolism
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Tumor Necrosis Factor Receptor Superfamily, Member 9
Substances
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Antigens, CD
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CD24 Antigen
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CD24 protein, human
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CD28 Antigens
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Cell Adhesion Molecules
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Lymphocyte Function-Associated Antigen-1
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Membrane Glycoproteins
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Receptors, Nerve Growth Factor
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Receptors, OX40
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Receptors, Tumor Necrosis Factor
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TNFRSF4 protein, human
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TNFRSF9 protein, human
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Tumor Necrosis Factor Receptor Superfamily, Member 7
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Tumor Necrosis Factor Receptor Superfamily, Member 9
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Intercellular Adhesion Molecule-1