Abstract
Cytotoxic T lymphocytes release granzymes (Gzm) A and B to induce apoptosis or programmed cell death of virally infected or tumor cells. In this issue of Cell, Fan et al. identify the tumor metastasis suppressor NM23-H1 as a GzmA-activated, apoptosis-inducing DNase and the oncoprotein SET as its inhibitor. Work from the Lieberman and Wang groups indicates a surprising role for a group of acidic nucleo-cytoplasmic proteins in regulating apoptosis.
MeSH terms
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Animals
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Apoptosis / physiology*
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Chromosomal Proteins, Non-Histone / genetics
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Chromosomal Proteins, Non-Histone / metabolism*
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DNA-Binding Proteins
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Eukaryotic Cells / cytology
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Eukaryotic Cells / metabolism*
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Granzymes
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HMGB2 Protein / metabolism
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Histone Chaperones
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Humans
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Monomeric GTP-Binding Proteins / genetics
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Monomeric GTP-Binding Proteins / metabolism*
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NM23 Nucleoside Diphosphate Kinases
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Nuclear Proteins / metabolism
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Nucleoside-Diphosphate Kinase*
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Phosphoproteins / metabolism
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Serine Endopeptidases / genetics
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Serine Endopeptidases / metabolism*
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Signal Transduction / physiology*
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Transcription Factors / genetics
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Transcription Factors / metabolism*
Substances
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Chromosomal Proteins, Non-Histone
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DNA-Binding Proteins
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HMGB2 Protein
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Histone Chaperones
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NM23 Nucleoside Diphosphate Kinases
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Nuclear Proteins
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Phosphoproteins
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SET protein, human
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Transcription Factors
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NME1 protein, human
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Nucleoside-Diphosphate Kinase
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Granzymes
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Serine Endopeptidases
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GZMA protein, human
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Monomeric GTP-Binding Proteins