Dataset Information

Knockout of the CEP290 gene in human induced pluripotent stem cells.

ABSTRACT: CEP290 is a principal component of the primary cilium and is important for the proper function of ciliated cells. CEP290 mutations have been linked to numerous ciliopathies, with a wide range of phenotypic severities, but with poor genotype:phenotype correlation. Here we have used CRISPR/Cas9 technology to target the CEP290 gene and generate a line of induced pluripotent stem cells that lack detectable CEP290 expression, but retain a normal karyotype and differentiation potential. This line of cells will be useful for the study of disorders resulting from CEP290 mutations.

SUBMITTER: Fogerty J

PROVIDER: S-EPMC8127132 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature

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Knockout of the CEP290 gene in human induced pluripotent stem cells.

Fogerty Joseph J Perkins Brian D BD

Stem cell research 20210211

CEP290 is a principal component of the primary cilium and is important for the proper function of ciliated cells. CEP290 mutations have been linked to numerous ciliopathies, with a wide range of phenotypic severities, but with poor genotype:phenotype correlation. Here we have used CRISPR/Cas9 technology to target the CEP290 gene and generate a line of induced pluripotent stem cells that lack detectable CEP290 expression, but retain a normal karyotype and differentiation potential. This line of c ...[more]

PMID: 33626495

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Project description:BackgroundThe application of CRISPR/Cas9 technology in human induced pluripotent stem cells (hiPSC) holds tremendous potential for basic research and cell-based gene therapy. However, the fulfillment of these promises relies on the capacity to efficiently deliver exogenous nucleic acids and harness the repair mechanisms induced by the nuclease activity in order to knock-out or repair targeted genes. Moreover, transient delivery should be preferred to avoid persistent nuclease activity and to decrease the risk of off-target events. We recently developed bacteriophage-chimeric retrovirus-like particles that exploit the properties of bacteriophage coat proteins to package exogenous RNA, and the benefits of lentiviral transduction to achieve highly efficient, non-integrative RNA delivery in human cells. Here, we investigated the potential of bacteriophage-chimeric retrovirus-like particles for the non-integrative delivery of RNA molecules in hiPSC for CRISPR/Cas9 applications.ResultsWe found that these particles efficiently convey RNA molecules for transient expression in hiPSC, with minimal toxicity and without affecting the cell pluripotency and subsequent differentiation. We then used this system to transiently deliver in a single step the CRISPR-Cas9 components (Cas9 mRNA and sgRNA) to generate gene knockout with high indel rate (up to 85%) at multiple loci. Strikingly, when using an allele-specific sgRNA at a locus harboring compound heterozygous mutations, the targeted allele was not altered by NHEJ/MMEJ, but was repaired at high frequency using the homologous wild type allele, i.e., by interallelic gene conversion.ConclusionsOur results highlight the potential of bacteriophage-chimeric retrovirus-like particles to efficiently and safely deliver RNA molecules in hiPSC, and describe for the first time genome engineering by gene conversion in hiPSC. Harnessing this DNA repair mechanism could facilitate the therapeutic correction of human genetic disorders in hiPSC.

Dataset Information

Knockout of the CEP290 gene in human induced pluripotent stem cells.

Publications

Knockout of the CEP290 gene in human induced pluripotent stem cells.

Similar Datasets

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