Cell Reports (May 2017)

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

  • Maithili P. Dalvi,
  • Lei Wang,
  • Rui Zhong,
  • Rahul K. Kollipara,
  • Hyunsil Park,
  • Juan Bayo,
  • Paul Yenerall,
  • Yunyun Zhou,
  • Brenda C. Timmons,
  • Jaime Rodriguez-Canales,
  • Carmen Behrens,
  • Barbara Mino,
  • Pamela Villalobos,
  • Edwin R. Parra,
  • Milind Suraokar,
  • Apar Pataer,
  • Stephen G. Swisher,
  • Neda Kalhor,
  • Natarajan V. Bhanu,
  • Benjamin A. Garcia,
  • John V. Heymach,
  • Kevin Coombes,
  • Yang Xie,
  • Luc Girard,
  • Adi F. Gazdar,
  • Ralf Kittler,
  • Ignacio I. Wistuba,
  • John D. Minna,
  • Elisabeth D. Martinez

DOI
https://doi.org/10.1016/j.celrep.2017.04.077
Journal volume & issue
Vol. 19, no. 8
pp. 1669 – 1684

Abstract

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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.

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