Highly Efficient and Marker-free Genome Editing of Human Pluripotent Stem Cells by CRISPR-Cas9 RNP and AAV6 Donor-Mediated Homologous Recombination.
Cell Stem Cell
; 24(5): 821-828.e5, 2019 05 02.
Article
en En
| MEDLINE
| ID: mdl-31051134
ABSTRACT
Genome editing of human pluripotent stem cells (hPSCs) provides powerful opportunities for in vitro disease modeling, drug discovery, and personalized stem cell-based therapeutics. Currently, only small edits can be engineered with high frequency, while larger modifications suffer from low efficiency and a resultant need for selection markers. Here, we describe marker-free genome editing in hPSCs using Cas9 ribonucleoproteins (RNPs) in combination with AAV6-mediated DNA repair template delivery. We report highly efficient and bi-allelic integration frequencies across multiple loci and hPSC lines, achieving mono-allelic editing frequencies of up to 94% at the HBB locus. Using this method, we show robust bi-allelic correction of homozygous sickle cell mutations in a patient-derived induced PSC (iPSC) line. Thus, this strategy shows significant utility for generating hPSCs with large gene integrations and/or single-nucleotide changes at high frequency and without the need for introducing selection genes, enhancing the applicability of hPSC editing for research and translational uses.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Dependovirus
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Células Madre Pluripotentes
/
Sistemas CRISPR-Cas
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Proteína 9 Asociada a CRISPR
/
Genotipo
Tipo de estudio:
Diagnostic_studies
Límite:
Humans
Idioma:
En
Revista:
Cell Stem Cell
Año:
2019
Tipo del documento:
Article
País de afiliación:
Estados Unidos