Abstract
MYCN amplification and overexpression are common in neuroendocrine prostate cancer (NEPC). However, the impact of aberrant N-Myc expression in prostate tumorigenesis and the cellular origin of NEPC have not been established. We define N-Myc and activated AKT1 as oncogenic components sufficient to transform human prostate epithelial cells to prostate adenocarcinoma and NEPC with phenotypic and molecular features of aggressive, late-stage human disease. We directly show that prostate adenocarcinoma and NEPC can arise from a common epithelial clone. Further, N-Myc is required for tumor maintenance, and destabilization of N-Myc through Aurora A kinase inhibition reduces tumor burden. Our findings establish N-Myc as a driver of NEPC and a target for therapeutic intervention.
Copyright © 2016 Elsevier Inc. All rights reserved.
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
MeSH terms
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Adenocarcinoma / genetics*
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Adenocarcinoma / pathology
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Animals
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Antineoplastic Agents / therapeutic use
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Aurora Kinase A / antagonists & inhibitors
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Aurora Kinase A / physiology
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Azepines / therapeutic use
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Cell Line, Tumor
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Cell Transformation, Neoplastic / genetics*
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Enzyme Activation
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Epithelial Cells / metabolism
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Epithelial Cells / pathology*
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Exome
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Gene Expression Regulation, Neoplastic
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Genes, myc
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Humans
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Laser Capture Microdissection
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Male
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Mice, Inbred NOD
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Mice, SCID
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Molecular Targeted Therapy
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Neoplasm Invasiveness
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Neoplasm Metastasis
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Neoplasm Proteins / genetics
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Neoplasm Proteins / physiology*
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Neoplastic Stem Cells / metabolism
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Neoplastic Stem Cells / pathology
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Neuroendocrine Tumors / genetics*
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Neuroendocrine Tumors / pathology
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Orchiectomy
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Phenylurea Compounds / therapeutic use
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Prostatic Neoplasms / genetics*
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Prostatic Neoplasms / pathology
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Protein Kinase Inhibitors / therapeutic use
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Proto-Oncogene Proteins c-akt / physiology
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Proto-Oncogene Proteins c-myc / physiology*
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Pyrimidines / therapeutic use
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Recombinant Fusion Proteins / metabolism
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Transduction, Genetic
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Xenograft Model Antitumor Assays
Substances
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Antineoplastic Agents
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Azepines
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CD532 compound
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MLN 8237
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Neoplasm Proteins
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Phenylurea Compounds
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Protein Kinase Inhibitors
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Proto-Oncogene Proteins c-myc
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Pyrimidines
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Recombinant Fusion Proteins
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AKT1 protein, human
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AURKA protein, human
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Aurora Kinase A
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Proto-Oncogene Proteins c-akt