Abstract:
:We elucidated genomic and transcriptomic changes that accompany the evolution of melanoma from pre-malignant lesions by sequencing DNA and RNA from primary melanomas and their adjacent precursors, as well as matched primary tumors and regional metastases. In total, we analyzed 230 histopathologically distinct areas of melanocytic neoplasia from 82 patients. Somatic alterations sequentially induced mitogen-activated protein kinase (MAPK) pathway activation, upregulation of telomerase, modulation of the chromatin landscape, G1/S checkpoint override, ramp-up of MAPK signaling, disruption of the p53 pathway, and activation of the PI3K pathway; no mutations were specifically associated with metastatic progression, as these pathways were perturbed during the evolution of primary melanomas. UV radiation-induced point mutations steadily increased until melanoma invasion, at which point copy-number alterations also became prevalent.
journal_name
Cancer Celljournal_title
Cancer cellauthors
Shain AH,Joseph NM,Yu R,Benhamida J,Liu S,Prow T,Ruben B,North J,Pincus L,Yeh I,Judson R,Bastian BCdoi
10.1016/j.ccell.2018.06.005subject
Has Abstractpub_date
2018-07-09 00:00:00pages
45-55.e4issue
1eissn
1535-6108issn
1878-3686pii
S1535-6108(18)30262-9journal_volume
34pub_type
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