Decoding molecular programs in melanoma brain metastases
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
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 language | English |
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Article number | 7304 |
Journal | Nature communications |
Volume | 13 |
Issue number | 1 |
Publication status | Published - Dec 2022 |
Peer-reviewed | Yes |
External IDs
PubMed | 36435874 |
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ORCID | /0000-0003-4340-0402/work/145223808 |
ORCID | /0000-0003-4340-9706/work/145224723 |