Whole-genome sequencing of acral melanoma reveals genomic complexity and diversity

Felicity Newell*, James S. Wilmott, Peter A. Johansson, Katia Nones, Venkateswar Addala, Pamela Mukhopadhyay, Natasa Broit, Carol M. Amato, Robert Van Gulick, Stephen H. Kazakoff, Ann Marie Patch, Lambros T. Koufariotis, Vanessa Lakis, Conrad Leonard, Scott Wood, Oliver Holmes, Qinying Xu, Karl Lewis, Theresa Medina, Rene GonzalezRobyn P.M. Saw, Andrew J. Spillane, Jonathan R. Stretch, Robert V. Rawson, Peter M. Ferguson, Tristan J. Dodds, John F. Thompson, Georgina V. Long, Mitchell P. Levesque, William A. Robinson, John V. Pearson, Graham J. Mann, Richard A. Scolyer, Nicola Waddell, Nicholas K. Hayward

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    97 Citations (Scopus)

    Abstract

    To increase understanding of the genomic landscape of acral melanoma, a rare form of melanoma occurring on palms, soles or nail beds, whole genome sequencing of 87 tumors with matching transcriptome sequencing for 63 tumors was performed. Here we report that mutational signature analysis reveals a subset of tumors, mostly subungual, with an ultraviolet radiation signature. Significantly mutated genes are BRAF, NRAS, NF1, NOTCH2, PTEN and TYRP1. Mutations and amplification of KIT are also common. Structural rearrangement and copy number signatures show that whole genome duplication, aneuploidy and complex rearrangements are common. Complex rearrangements occur recurrently and are associated with amplification of TERT, CDK4, MDM2, CCND1, PAK1 and GAB2, indicating potential therapeutic options.

    Original languageEnglish
    Article number5259
    JournalNature Communications
    Volume11
    Issue number1
    DOIs
    Publication statusPublished - 1 Dec 2020

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