Abstract
The oncometabolite (R)-2-hydroxyglutarate (R-2-HG) produced by isocitrate dehydrogenase (IDH) mutations promotes gliomagenesis via DNA and histone methylation. Here, we identify an additional activity of R-2-HG: tumor cell-derived R-2-HG is taken up by T cells where it induces a perturbation of nuclear factor of activated T cells transcriptional activity and polyamine biosynthesis, resulting in suppression of T cell activity. IDH1-mutant gliomas display reduced T cell abundance and altered calcium signaling. Antitumor immunity to experimental syngeneic IDH1-mutant tumors induced by IDH1-specific vaccine or checkpoint inhibition is improved by inhibition of the neomorphic enzymatic function of mutant IDH1. These data attribute a novel, non-tumor cell-autonomous role to an oncometabolite in shaping the tumor immune microenvironment.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adenosine Triphosphate / metabolism
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Animals
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Apoptosis
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Brain Neoplasms / genetics
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Brain Neoplasms / immunology
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Calcium / metabolism
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Cell Line, Tumor
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Cell Proliferation
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Glioma / genetics
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Glioma / immunology
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Glutarates / metabolism*
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Humans
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Immunity*
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Isocitrate Dehydrogenase / genetics
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Isocitrate Dehydrogenase / metabolism
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Lymphocyte Activation / immunology
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Mice, Inbred C57BL
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Mutation / genetics
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NFATC Transcription Factors / metabolism
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Paracrine Communication
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Polyamines / metabolism
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RNA, Messenger / genetics
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RNA, Messenger / metabolism
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Receptors, Antigen, T-Cell / metabolism
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Signal Transduction
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T-Lymphocytes / immunology*
Substances
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Glutarates
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NFATC Transcription Factors
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Polyamines
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RNA, Messenger
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Receptors, Antigen, T-Cell
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alpha-hydroxyglutarate
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Adenosine Triphosphate
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Isocitrate Dehydrogenase
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IDH1 protein, human
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Calcium