Decoding molecular programs in melanoma brain metastases

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Josefine Radke - , University of Greifswald, Charité – Universitätsmedizin Berlin, German Cancer Research Center (DKFZ) (Author)
  • Elisa Schumann - , German Cancer Research Center (DKFZ), Charité – Universitätsmedizin Berlin (Author)
  • Julia Onken - , German Cancer Research Center (DKFZ), Charité – Universitätsmedizin Berlin (Author)
  • Randi Koll - , German Cancer Research Center (DKFZ), Charité – Universitätsmedizin Berlin (Author)
  • Güliz Acker - , Charité – Universitätsmedizin Berlin (Author)
  • Bohdan Bodnar - , Charité – Universitätsmedizin Berlin (Author)
  • Carolin Senger - , Charité – Universitätsmedizin Berlin (Author)
  • Sascha Tierling - , Saarland University (Author)
  • Markus Möbs - , Charité – Universitätsmedizin Berlin (Author)
  • Peter Vajkoczy - , Charité – Universitätsmedizin Berlin (Author)
  • Anna Vidal - , University of Veterinary Medicine Vienna (Author)
  • Sandra Högler - , University of Veterinary Medicine Vienna (Author)
  • Petra Kodajova - , University of Veterinary Medicine Vienna (Author)
  • Dana Westphal - , Department of Dermatology, National Center for Tumor Diseases Dresden (Author)
  • Friedegund Meier - , Department of Dermatology, National Center for Tumor Diseases Dresden (Author)
  • Frank Heppner - , Charité – Universitätsmedizin Berlin, German Cancer Research Center (DKFZ) (Author)
  • Susanne Kreuzer-Redmer - , University of Veterinary Medicine Vienna (Author)
  • Florian Grebien - , University of Veterinary Medicine Vienna (Author)
  • Karsten Jürchott - , Charité – Universitätsmedizin Berlin (Author)
  • Torben Redmer - , University of Veterinary Medicine Vienna (Author)

Abstract

Melanoma brain metastases (MBM) variably respond to therapeutic interventions; thus determining patient’s prognosis. However, the mechanisms that govern therapy response are poorly understood. Here, we use a multi-OMICS approach and targeted sequencing (TargetSeq) to unravel the programs that potentially control the development of progressive intracranial disease. Molecularly, the expression of E-cadherin (Ecad) or NGFR, the BRAF mutation state and level of immune cell infiltration subdivides tumors into proliferative/pigmented and invasive/stem-like/therapy-resistant irrespective of the intracranial location. The analysis of MAPK inhibitor-naive and refractory MBM reveals switching from Ecad-associated into NGFR-associated programs during progression. NGFR-associated programs control cell migration and proliferation via downstream transcription factors such as SOX4. Moreover, global methylome profiling uncovers 46 differentially methylated regions that discriminate BRAFmut and wildtype MBM. In summary, we propose that the expression of Ecad and NGFR sub- classifies MBM and suggest that the Ecad-to-NGFR phenotype switch is a rate-limiting process which potentially indicates drug-response and intracranial progression states in melanoma patients.

Details

Original languageEnglish
Article number7304
JournalNature communications
Volume13
Issue number1
Publication statusPublished - Dec 2022
Peer-reviewedYes

External IDs

PubMed 36435874
ORCID /0000-0003-4340-0402/work/145223808
ORCID /0000-0003-4340-9706/work/145224723