Taxane-Platin-Resistant Lung Cancers Co-develop Hypersensitivity to JumonjiC Demethylase Inhibitors

Cell Rep. 2017 May 23;19(8):1669-1684. doi: 10.1016/j.celrep.2017.04.077.

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.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Aminopyridines / adverse effects
  • Aminopyridines / pharmacology
  • Aminopyridines / therapeutic use
  • Animals
  • Antineoplastic Agents / pharmacology
  • Antineoplastic Agents / therapeutic use
  • Benzazepines / adverse effects
  • Benzazepines / pharmacology
  • Benzazepines / therapeutic use
  • Bridged-Ring Compounds / pharmacology
  • Bridged-Ring Compounds / therapeutic use*
  • Carboplatin / pharmacology
  • Carboplatin / therapeutic use*
  • Carcinoma, Non-Small-Cell Lung / drug therapy*
  • Carcinoma, Non-Small-Cell Lung / genetics
  • Carcinoma, Non-Small-Cell Lung / pathology
  • Cell Line, Tumor
  • Disease-Free Survival
  • Drug Resistance, Neoplasm* / drug effects
  • Drug Resistance, Neoplasm* / genetics
  • Enzyme Inhibitors / pharmacology
  • Enzyme Inhibitors / therapeutic use*
  • Gene Expression Profiling
  • Gene Expression Regulation, Neoplastic / drug effects
  • Histones / metabolism
  • Humans
  • Hydrazones / adverse effects
  • Hydrazones / pharmacology
  • Hydrazones / therapeutic use
  • Jumonji Domain-Containing Histone Demethylases / antagonists & inhibitors*
  • Jumonji Domain-Containing Histone Demethylases / metabolism
  • Lung Neoplasms / drug therapy*
  • Lung Neoplasms / genetics
  • Lung Neoplasms / pathology
  • Methylation
  • Mice
  • Neoadjuvant Therapy
  • Pyrimidines / adverse effects
  • Pyrimidines / pharmacology
  • Pyrimidines / therapeutic use
  • Taxoids / pharmacology
  • Taxoids / therapeutic use*
  • Transcription, Genetic / drug effects

Substances

  • Aminopyridines
  • Antineoplastic Agents
  • Benzazepines
  • Bridged-Ring Compounds
  • Enzyme Inhibitors
  • GSK-J4
  • Histones
  • Hydrazones
  • JIB-04
  • Pyrimidines
  • Taxoids
  • taxane
  • Carboplatin
  • Jumonji Domain-Containing Histone Demethylases
  • KDM3B protein, human