Abstract
Protein kinase C theta (PKC-θ) is a key kinase in mediating T cell receptor (TCR) signals. PKC-θ activated by T cell receptor (TCR) engagement translocates to immunological synapses and regulates the activation of transcriptional factors NFκB, AP-1, and NFAT. These transcription factors then activate target genes such as IL-2. T cells deficient in PKC-θ display defects in T cell activation, survival, activation-induced cell death, and the differentiation into inflammatory T cells, such as Th2 and Th17 cells both in vitro and in vivo. Since these effector T helper cells are responsible for mediating autoimmunity, selective inhibition of PKC-θ is considered a treatment for prevention of autoimmune diseases and allograft rejection.
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
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Review
MeSH terms
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Animals
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Autoimmune Diseases / enzymology
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Autoimmune Diseases / immunology
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Autoimmune Diseases / prevention & control*
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Autoimmunity / drug effects*
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Graft Rejection / enzymology
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Graft Rejection / immunology
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Graft Rejection / prevention & control*
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Humans
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Immunosuppressive Agents / pharmacology*
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Isoenzymes
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Protein Kinase C / antagonists & inhibitors*
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Protein Kinase C / metabolism
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Protein Kinase Inhibitors / pharmacology*
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Protein Transport
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Signal Transduction / drug effects
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T-Lymphocytes / drug effects*
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T-Lymphocytes / enzymology
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T-Lymphocytes / immunology
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Transplantation, Homologous
Substances
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Immunosuppressive Agents
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Isoenzymes
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Protein Kinase Inhibitors
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Protein Kinase C