TY - JOUR
T1 - The topography of mutational processes in breast cancer genomes
AU - Morganella, Sandro
AU - Alexandrov, Ludmil B.
AU - Glodzik, Dominik
AU - Zou, Xueqing
AU - Davies, Helen
AU - Staaf, Johan
AU - Sieuwerts, Anieta M.
AU - Brinkman, Arie B.
AU - Martin, Sancha
AU - Ramakrishna, Manasa
AU - Butler, Adam
AU - Kim, Hyung-Yong
AU - Borg, Åke
AU - Sotiriou, Christos
AU - Futreal, P. Andrew
AU - Campbell, Peter J.
AU - Span, Paul N.
AU - van Laere, Steven
AU - Lakhani, Sunil R.
AU - Eyfjord, Jorunn E.
AU - Thompson, Alastair M.
AU - Stunnenberg, Hendrik G.
AU - van de Vijver, Marc J.
AU - Martens, John W. M.
AU - Børresen-Dale, Anne-Lise
AU - Richardson, Andrea L.
AU - Kong, Gu
AU - Thomas, Gilles
AU - Sale, Julian
AU - Rada, Cristina
AU - Stratton, Michael R.
AU - Birney, Ewan
AU - Nik-Zainal, Serena
PY - 2016
Y1 - 2016
N2 - Somatic mutations in human cancers show unevenness in genomic distribution that correlate with aspects of genome structure and function. These mutations are, however, generated by multiple mutational processes operating through the cellular lineage between the fertilized egg and the cancer cell, each composed of specific DNA damage and repair components and leaving its own characteristic mutational signature on the genome. Using somatic mutation catalogues from 560 breast cancer whole-genome sequences, here we show that each of 12 base substitution, 2 insertion/deletion (indel) and 6 rearrangement mutational signatures present in breast tissue, exhibit distinct relationships with genomic features relating to transcription, DNA replication and chromatin organization. This signature-based approach permits visualization of the genomic distribution of mutational processes associated with APOBEC enzymes, mismatch repair deficiency and homologous recombinational repair deficiency, as well as mutational processes of unknown aetiology. Furthermore, it highlights mechanistic insights including a putative replication-dependent mechanism of APOBEC-related mutagenesis
AB - Somatic mutations in human cancers show unevenness in genomic distribution that correlate with aspects of genome structure and function. These mutations are, however, generated by multiple mutational processes operating through the cellular lineage between the fertilized egg and the cancer cell, each composed of specific DNA damage and repair components and leaving its own characteristic mutational signature on the genome. Using somatic mutation catalogues from 560 breast cancer whole-genome sequences, here we show that each of 12 base substitution, 2 insertion/deletion (indel) and 6 rearrangement mutational signatures present in breast tissue, exhibit distinct relationships with genomic features relating to transcription, DNA replication and chromatin organization. This signature-based approach permits visualization of the genomic distribution of mutational processes associated with APOBEC enzymes, mismatch repair deficiency and homologous recombinational repair deficiency, as well as mutational processes of unknown aetiology. Furthermore, it highlights mechanistic insights including a putative replication-dependent mechanism of APOBEC-related mutagenesis
U2 - https://doi.org/10.1038/ncomms11383
DO - https://doi.org/10.1038/ncomms11383
M3 - Article
C2 - 27136393
SN - 2041-1723
VL - 7
SP - 11383
JO - Nature communications
JF - Nature communications
ER -