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Journal article

Completing a genomic characterisation of microscopic tumour samples with copy number

Abstract:

Background: Genomic insights in settings where tumour sample sizes are limited to just hundreds or even tens of cells hold great clinical potential, but also present significant technical challenges. We previously developed the DigiPico sequencing platform to accurately identify somatic mutations from such samples.

Results: Here, we complete this genomic characterisation with copy number. We present a novel protocol, PicoCNV, to call allele-specific somatic copy number alterations from picogram quantities of tumour DNA. We find that PicoCNV provides exactly accurate copy number in 84% of the genome for even the smallest samples, and demonstrate its clinical potential in maintenance therapy.

Conclusions: PicoCNV complements our existing platform, allowing for accurate and comprehensive genomic characterisations of cancers in settings where only microscopic samples are available.

Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1186/s12859-023-05576-7

Authors

More by this author
Institution:
University of Oxford
Division:
MSD
Department:
Women's & Reproductive Health
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MSD
Department:
Women's & Reproductive Health
Role:
Author
ORCID:
0009-0006-5530-760X
More by this author
Institution:
University of Oxford
Division:
MSD
Department:
Radcliffe Department of Medicine
Sub department:
RDM-Weatherall Inst of Molecular Medicine
Role:
Author


Publisher:
BioMed Central
Journal:
BMC Bioinformatics More from this journal
Volume:
24
Issue:
1
Article number:
453
Place of publication:
England
Publication date:
2023-11-30
Acceptance date:
2023-11-21
DOI:
EISSN:
1471-2105
ISSN:
1471-2105
Pmid:
38036971


Language:
English
Keywords:
Pubs id:
1575681
Local pid:
pubs:1575681
Deposit date:
2025-01-16
ARK identifier:

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