Abstract
Although non-small cell lung cancer (NSCLC) patients benefit from standard taxane-platin chemotherapy, many relapse, developing drug resistance. We established preclinical taxane-platin-chemoresistance models and identified a 35-gene resistance signature, which was associated with poor recurrence-free survival in neoadjuvant-treated NSCLC patients and included upregulation of the JumonjiC lysine demethylase KDM3B. In fact, multi-drug-resistant cells progressively increased the expression of many JumonjiC demethylases, had altered histone methylation, and, importantly, showed hypersensitivity to JumonjiC inhibitors in vitro and in vivo. Increasing taxane-platin resistance in progressive cell line series was accompanied by progressive sensitization to JIB-04 and GSK-J4. These JumonjiC inhibitors partly reversed deregulated transcriptional programs, prevented the emergence of drug-tolerant colonies from chemo-naive cells, and synergized with standard chemotherapy in vitro and in vivo. Our findings reveal JumonjiC inhibitors as promising therapies for targeting taxane-platin-chemoresistant NSCLCs.
Keywords:
GSK-J4; JIB-04; Jumonji demethylases; KDM; demethylase inhibitors; drug resistance; histone demethylases; histone methylation; lung cancer; taxane-platin chemotherapy.
Copyright © 2017 The Authors. Published by Elsevier Inc. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, N.I.H., Extramural
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Aminopyridines / adverse effects
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Aminopyridines / pharmacology
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Aminopyridines / therapeutic use
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Animals
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Antineoplastic Agents / pharmacology
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Antineoplastic Agents / therapeutic use
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Benzazepines / adverse effects
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Benzazepines / pharmacology
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Benzazepines / therapeutic use
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Bridged-Ring Compounds / pharmacology
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Bridged-Ring Compounds / therapeutic use*
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Carboplatin / pharmacology
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Carboplatin / therapeutic use*
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Carcinoma, Non-Small-Cell Lung / drug therapy*
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Carcinoma, Non-Small-Cell Lung / genetics
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Carcinoma, Non-Small-Cell Lung / pathology
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Cell Line, Tumor
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Disease-Free Survival
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Drug Resistance, Neoplasm* / drug effects
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Drug Resistance, Neoplasm* / genetics
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Enzyme Inhibitors / pharmacology
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Enzyme Inhibitors / therapeutic use*
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Gene Expression Profiling
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Gene Expression Regulation, Neoplastic / drug effects
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Histones / metabolism
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Humans
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Hydrazones / adverse effects
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Hydrazones / pharmacology
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Hydrazones / therapeutic use
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Jumonji Domain-Containing Histone Demethylases / antagonists & inhibitors*
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Jumonji Domain-Containing Histone Demethylases / metabolism
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Lung Neoplasms / drug therapy*
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Lung Neoplasms / genetics
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Lung Neoplasms / pathology
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Methylation
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Mice
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Neoadjuvant Therapy
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Pyrimidines / adverse effects
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Pyrimidines / pharmacology
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Pyrimidines / therapeutic use
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Taxoids / pharmacology
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Taxoids / therapeutic use*
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Transcription, Genetic / drug effects
Substances
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Aminopyridines
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Antineoplastic Agents
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Benzazepines
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Bridged-Ring Compounds
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Enzyme Inhibitors
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GSK-J4
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Histones
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Hydrazones
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JIB-04
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Pyrimidines
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Taxoids
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taxane
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Carboplatin
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Jumonji Domain-Containing Histone Demethylases
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KDM3B protein, human