The stochastic nature of errors in next-generation sequencing of circulating cell-free DNA.
PLoS One
; 15(2): e0229063, 2020.
Article
em En
| MEDLINE
| ID: mdl-32084206
ABSTRACT
Challenges with distinguishing circulating tumor DNA (ctDNA) from next-generation sequencing (NGS) artifacts limits variant searches to established solid tumor mutations. Here we show early and random PCR errors are a principal source of NGS noise that persist despite duplex molecular barcoding, removal of artifacts due to clonal hematopoiesis of indeterminate potential, and suppression of patterned errors. We also demonstrate sample duplicates are necessary to eliminate the stochastic noise associated with NGS. Integration of sample duplicates into NGS analytics may broaden ctDNA applications by removing NGS-related errors that confound identification of true very low frequency variants during searches for ctDNA without a priori knowledge of specific mutations to target.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Limite:
Adult
/
Female
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Humans
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Male
/
Middle aged
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article