PLGA-Nanoparticles for Intracellular Delivery of the CRISPR-Complex to Elevate Fetal Globin Expression in Erythroid Cells

نویسندگان

چکیده

Ex vivo gene editing of CD34+ hematopoietic stem and progenitor cells (HSPCs) offers great opportunities to develop new treatments for a number malignant non-malignant diseases. Efficient gene-editing in HSPCs has been achieved using electroporation and/or viral transduction deliver the CRISPR-complex, but cellular toxicity is drawback currently used methods. Nanoparticle (NP)-based strategies can further enhance potential provide delivery system application. Here, we developed CRISPR/Cas9-PLGA-NPs efficiently encapsulating Cas9 protein, single gRNA fluorescent probe. The initial ‘burst’ release was followed by sustained pattern. were taken up processed human HSPCs, without inducing cytotoxicity. Upon escape from lysosomal compartment, CRISPR/Cas9-PLGA-NPs-mediated ?-globin locus resulted elevated expression fetal hemoglobin (HbF) primary erythroid cells. development provides an attractive tool CRISPR components target could basis treatment hemoglobinopathies other genetic

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ژورنال

عنوان ژورنال: Biomaterials

سال: 2021

ISSN: ['0142-9612', '1878-5905']

DOI: https://doi.org/10.1016/j.biomaterials.2020.120580