Direct, Genome-wide Assessment of DNA Mutations in Single Cells
Overview
Affiliations
DNA mutations are the inevitable consequences of errors that arise during replication and repair of DNA damage. Because of their random and infrequent occurrence, quantification and characterization of DNA mutations in the genome of somatic cells has been difficult. Random, low-abundance mutations are currently inaccessible by standard high-throughput sequencing approaches because they cannot be distinguished from sequencing errors. One way to circumvent this problem and simultaneously account for the mutational heterogeneity within tissues is whole genome sequencing of a representative number of single cells. Here, we show elevated mutation levels in single cells from Drosophila melanogaster S2 and mouse embryonic fibroblast populations after treatment with the powerful mutagen N-ethyl-N-nitrosourea. This method can be applied as a direct measure of exposure to mutagenic agents and for assessing genotypic heterogeneity within tissues or cell populations.
Concurrent analysis of genome and transcriptome in one single cell.
Heid J, Cutler R, Lee M, Vijg J, Maslov A BMC Res Notes. 2024; 17(1):267.
PMID: 39285281 PMC: 11403997. DOI: 10.1186/s13104-024-06927-0.
Methods and applications of genome-wide profiling of DNA damage and rare mutations.
Pfeifer G, Jin S Nat Rev Genet. 2024; 25(12):846-863.
PMID: 38918545 PMC: 11563917. DOI: 10.1038/s41576-024-00748-4.
Somatic mutations in aging and disease.
Ren P, Zhang J, Vijg J Geroscience. 2024; 46(5):5171-5189.
PMID: 38488948 PMC: 11336144. DOI: 10.1007/s11357-024-01113-3.
Analyzing somatic mutations by single-cell whole-genome sequencing.
Zhang L, Lee M, Maslov A, Montagna C, Vijg J, Dong X Nat Protoc. 2023; 19(2):487-516.
PMID: 37996541 PMC: 11406548. DOI: 10.1038/s41596-023-00914-8.
Maslov A, Vijg J Curr Opin Genet Dev. 2023; 83:102132.
PMID: 37931583 PMC: 10841402. DOI: 10.1016/j.gde.2023.102132.