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- W4323033383 abstract "Nanomaterial exposure can cause replication stress and genomic instability in cells. The degree of instability depends on the chemistry, size, and concentration of the nanomaterials, the time of exposure, and the exposed cell type. Several established methods have been used to elucidate how endogenous/exogenous agents impact global replication. However, replicon-level assays, such as the DNA fiber assay, are imperative to understand how these agents influence replication initiation, terminations, and replication fork progression. Knowing this allows one to understand better how nanomaterials increase the chances of mutation fixation and genomic instability. We used RAW 264.7 macrophages as model cells to study the replication dynamics under graphene oxide nanoparticle exposure. Here, we demonstrate the basic protocol for the DNA fiber assay, which includes pulse labeling with nucleotide analogs, cell lysis, spreading the pulse-labeled DNA fibers onto slides, fluorescent immunostaining of the nucleotide analogs within the DNA fibers, imaging of the replication intermediates within the DNA fibers using confocal microscopy, and replication intermediate analysis utilizing a computer-assisted scoring and analysis (CASA) software." @default.
- W4323033383 created "2023-03-04" @default.
- W4323033383 date "2023-03-04" @default.
- W4323033383 modified "2023-09-23" @default.
- W4323033383 title "JoVE Video Dataset" @default.
- W4323033383 doi "https://doi.org/10.3791/64903-v" @default.
- W4323033383 hasPublicationYear "2023" @default.
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