Abstract
In a recent paper in Nature, show that the immunoreceptor PD-1 is upregulated by "exhausted" T cells during the chronic phase of viral infection in mice. Remarkably, blocking the interaction between PD-1 and its ligand, PD-L1, reactivates these T cells and reduces viral load.
MeSH terms
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Animals
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Antigens, Surface / immunology
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Antigens, Surface / metabolism
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Apoptosis Regulatory Proteins / immunology
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Apoptosis Regulatory Proteins / metabolism
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B7-1 Antigen / immunology
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B7-1 Antigen / metabolism
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B7-H1 Antigen
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CD8-Positive T-Lymphocytes / immunology*
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CD8-Positive T-Lymphocytes / metabolism
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Chronic Disease
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Membrane Glycoproteins / immunology
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Membrane Glycoproteins / metabolism
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Mice
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Models, Immunological
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Peptides / immunology
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Peptides / metabolism
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Programmed Cell Death 1 Receptor
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Signal Transduction
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Virus Diseases / immunology*
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Virus Diseases / metabolism
Substances
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Antigens, Surface
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Apoptosis Regulatory Proteins
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B7-1 Antigen
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B7-H1 Antigen
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Cd274 protein, mouse
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Membrane Glycoproteins
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Pdcd1 protein, mouse
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Peptides
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Programmed Cell Death 1 Receptor