Reconstructing evolutionary trajectories of mutation signature activities in cancer using TrackSig
The type and genomic context of cancer mutations depend on their causes. These causes have been characterized using signatures that represent mutation types that co-occur in the same tumours. However, it remains unclear how mutation processes change during cancer evolution due to the lack of reliabl...
| Main Authors: | , , , , , , , , , |
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| Andre forfattere: | |
| Format: | Journal article |
| Sprog: | English |
| Udgivet: |
Springer Nature
2020
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| _version_ | 1826294735966306304 |
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| author | Rubanova, Y Shi, R Harrigan, CF Li, R Wintersinger, J Sahin, N Deshwar, A PCAWG Evolution and Heterogeneity Working Group Morris, Q PCAWG Consortium |
| author2 | Wedge, DC |
| author_facet | Wedge, DC Rubanova, Y Shi, R Harrigan, CF Li, R Wintersinger, J Sahin, N Deshwar, A PCAWG Evolution and Heterogeneity Working Group Morris, Q PCAWG Consortium |
| author_sort | Rubanova, Y |
| collection | OXFORD |
| description | The type and genomic context of cancer mutations depend on their causes. These causes have been characterized using signatures that represent mutation types that co-occur in the same tumours. However, it remains unclear how mutation processes change during cancer evolution due to the lack of reliable methods to reconstruct evolutionary trajectories of mutational signature activity. Here, as part of the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium, which aggregated whole-genome sequencing data from 2658 cancers across 38 tumour types, we present TrackSig, a new method that reconstructs these trajectories using optimal, joint segmentation and deconvolution of mutation type and allele frequencies from a single tumour sample. In simulations, we find TrackSig has a 3–5% activity reconstruction error, and 12% false detection rate. It outperforms an aggressive baseline in situations with branching evolution, CNA gain, and neutral mutations. Applied to data from 2658 tumours and 38 cancer types, TrackSig permits pan-cancer insight into evolutionary changes in mutational processes. |
| first_indexed | 2024-03-07T03:50:16Z |
| format | Journal article |
| id | oxford-uuid:c0ff6d76-0334-441e-a8e8-694f908541f0 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:50:16Z |
| publishDate | 2020 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | oxford-uuid:c0ff6d76-0334-441e-a8e8-694f908541f02022-03-27T05:58:26ZReconstructing evolutionary trajectories of mutation signature activities in cancer using TrackSigJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c0ff6d76-0334-441e-a8e8-694f908541f0EnglishSymplectic ElementsSpringer Nature2020Rubanova, YShi, RHarrigan, CFLi, RWintersinger, JSahin, NDeshwar, APCAWG Evolution and Heterogeneity Working GroupMorris, QPCAWG ConsortiumWedge, DCDentro, SCThe type and genomic context of cancer mutations depend on their causes. These causes have been characterized using signatures that represent mutation types that co-occur in the same tumours. However, it remains unclear how mutation processes change during cancer evolution due to the lack of reliable methods to reconstruct evolutionary trajectories of mutational signature activity. Here, as part of the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium, which aggregated whole-genome sequencing data from 2658 cancers across 38 tumour types, we present TrackSig, a new method that reconstructs these trajectories using optimal, joint segmentation and deconvolution of mutation type and allele frequencies from a single tumour sample. In simulations, we find TrackSig has a 3–5% activity reconstruction error, and 12% false detection rate. It outperforms an aggressive baseline in situations with branching evolution, CNA gain, and neutral mutations. Applied to data from 2658 tumours and 38 cancer types, TrackSig permits pan-cancer insight into evolutionary changes in mutational processes. |
| spellingShingle | Rubanova, Y Shi, R Harrigan, CF Li, R Wintersinger, J Sahin, N Deshwar, A PCAWG Evolution and Heterogeneity Working Group Morris, Q PCAWG Consortium Reconstructing evolutionary trajectories of mutation signature activities in cancer using TrackSig |
| title | Reconstructing evolutionary trajectories of mutation signature activities in cancer using TrackSig |
| title_full | Reconstructing evolutionary trajectories of mutation signature activities in cancer using TrackSig |
| title_fullStr | Reconstructing evolutionary trajectories of mutation signature activities in cancer using TrackSig |
| title_full_unstemmed | Reconstructing evolutionary trajectories of mutation signature activities in cancer using TrackSig |
| title_short | Reconstructing evolutionary trajectories of mutation signature activities in cancer using TrackSig |
| title_sort | reconstructing evolutionary trajectories of mutation signature activities in cancer using tracksig |
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