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Weisheit, Isabel; Kroeger, Joseph A; Malik, Rainer; Klimmt, Julien; Crusius, Dennis; Dannert, Angelika; Dichgans, Martin; Paquet, Dominik
Cell Reports, 01/2020Journal Article
CRISPR genome editing is a promising tool for translational research but can cause undesired editing outcomes, both on target at the edited locus and off target at other genomic loci. Here, we investigate the occurrence of deleterious on-target effects (OnTEs) in human stem cells after insertion of disease-related mutations by homology-directed repair (HDR) and gene editing using non-homologous end joining (NHEJ). We identify large, mono-allelic genomic deletions and loss-of-heterozygosity escaping standard quality controls in up to 40% of edited clones. To reliably detect such events, we describe simple, low-cost, and broadly applicable quantitative genotyping PCR (qgPCR) and single-nucleotide polymorphism (SNP) genotyping-based tools and suggest their usage as additional quality controls after editing. This will help to ensure the integrity of edited loci and increase the reliability of CRISPR editing.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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