alexa Functional repair of CFTR by CRISPR Cas9 in intestinal stem cell organoids of cystic fibrosis patients.
Clinical Research

Clinical Research

Journal of Clinical Research & Bioethics

Author(s): Schwank G

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Single murine and human intestinal stem cells can be expanded in culture over long time periods as genetically and phenotypically stable epithelial organoids. Increased cAMP levels induce rapid swelling of such organoids by opening the cystic fibrosis transmembrane conductor receptor (CFTR). This response is lost in organoids derived from cystic fibrosis (CF) patients. Here we use the CRISPR/Cas9 genome editing system to correct the CFTR locus by homologous recombination in cultured intestinal stem cells of CF patients. The corrected allele is expressed and fully functional as measured in clonally expanded organoids. This study provides proof of concept for gene correction by homologous recombination in primary adult stem cells derived from patients with a single-gene hereditary defect.

This article was published in Cell Stem Cell and referenced in Journal of Clinical Research & Bioethics

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