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    Human genome-edited hematopoietic stem cells phenotypically correct Mucopolysaccharidosis type I

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    Author
    Gomez-Ospina, N.
    Scharenberg, S.G.
    Aurelian, L.
    Date
    2019
    Journal
    Nature Communications
    Publisher
    Nature Publishing Group
    Type
    Article
    
    Metadata
    Show full item record
    See at
    https://doi.org/10.1038/s41467-019-11962-8
    Abstract
    Lysosomal enzyme deficiencies comprise a large group of genetic disorders that generally lack effective treatments. A potential treatment approach is to engineer the patient’s own hematopoietic system to express high levels of the deficient enzyme, thereby correcting the biochemical defect and halting disease progression. Here, we present an efficient ex vivo genome editing approach using CRISPR-Cas9 that targets the lysosomal enzyme iduronidase to the CCR5 safe harbor locus in human CD34+ hematopoietic stem and progenitor cells. The modified cells secrete supra-endogenous enzyme levels, maintain long-term repopulation and multi-lineage differentiation potential, and can improve biochemical and phenotypic abnormalities in an immunocompromised mouse model of Mucopolysaccharidosis type I. These studies provide support for the development of genome-edited CD34+ hematopoietic stem and progenitor cells as a potential treatment for Mucopolysaccharidosis type I. The safe harbor approach constitutes a flexible platform for the expression of lysosomal enzymes making it applicable to other lysosomal storage disorders. Copyright 2019, The Author(s).
    Sponsors
    This work was supported by the Stanford's Child Health Research Institute (CHRI), the National Organization of Rare Disorders (NORD), the Thrasher Research Fund, the National Institute of Neurological Disorders and Stroke (NINDS, 1K08NS102398-01 to N.G-O), and in part by the Cancer Prevention and Research Institute of Texas (RR140081 and RR170721 to G.B.).
    Keyword
    Hematopoietic Stem Cells
    Mucopolysaccharidoses--therapy
    Identifier to cite or link to this item
    https://www.scopus.com/inward/record.uri?eid=2-s2.0-85071896825&doi=10.1038%2fs41467-019-11962-8&partnerID=40&md5=cd1f9923ad62048338cc2dbfeeee8a84; http://hdl.handle.net/10713/10897
    ae974a485f413a2113503eed53cd6c53
    10.1038/s41467-019-11962-8
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    UMB Open Access Articles 2019

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