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A DNA-fiber protocol for single molecule analysis of telomere (SMAT) length and extension events in cancer cells.

Published Web Location

https://doi.org/10.1016/j.xpro.2022.101212
Abstract

Alternative lengthening of telomeres (ALT) is a homologous recombination-based telomere maintenance mechanism. It is active in approximately 10-15% of cancers. We present a DNA-fiber protocol, combining YOYO-1 staining of genomic DNA, telomere fluorescence in situ hybridization (FISH), and EdU labeling of nascent DNA, to measure telomere extension events in ALT cancer cells. The protocol can be used to delineate ALT-mediated telomere extension. For complete details on the use and execution of this protocol, please refer to Barroso-Gonzalez et al. (2021).

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