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Polyethylenimine based magnetic nanoparticles mediated non-viral CRISPR/Cas9 system for genome editing

SS. Rohiwal, N. Dvorakova, J. Klima, M. Vaskovicova, F. Senigl, M. Slouf, E. Pavlova, P. Stepanek, D. Babuka, H. Benes, Z. Ellederova, K. Stieger,

. 2020 ; 10 (1) : 4619. [pub] 20200312

Language English Country Great Britain

Document type Journal Article, Research Support, Non-U.S. Gov't

Persistent link   https://www.medvik.cz/link/bmc20028385

Clustered regularly interspaced short palindromic repeats-associated protein (CRISPR/Cas9) system has become a revolutionary tool for gene editing. Since viral delivery systems have significant side effects, and naked DNA delivery is not an option, the nontoxic, non-viral delivery of CRISPR/Cas9 components would significantly improve future therapeutic delivery. In this study, we aim at characterizing nanoparticles to deliver plasmid DNA encoding for the CRISPR-Cas system in eukaryotic cells in vitro. CRISPR/Cas9 complexed polyethylenimine (PEI) magnetic nanoparticles (MNPs) were generated. We used a stable HEK293 cell line expressing the traffic light reporter (TLR-3) system to evaluate efficient homology- directed repair (HDR) and non-homologous end joining (NHEJ) events following transfection with NPs. MNPs have been synthesized by co-precipitation with the average particle size around 20 nm in diameter. The dynamic light scattering and zeta potential measurements showed that NPs exhibited narrow size distribution and sufficient colloidal stability. Genome editing events were as efficient as compared to standard lipofectamine transfection. Our approach tested non-viral delivery of CRISPR/Cas9 and DNA template to perform HDR and NHEJ in the same assay. We demonstrated that PEI-MNPs is a promising delivery system for plasmids encoding CRISPR/Cas9 and template DNA and thus can improve safety and utility of gene editing.

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$a Dvorakova, N $u The PIGMOD center, Institute of Animal Physiology and Genetics, v. v. i., The Czech Academy of Sciences, Libechov, Czech Republic.
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$a Klima, J $u The PIGMOD center, Institute of Animal Physiology and Genetics, v. v. i., The Czech Academy of Sciences, Libechov, Czech Republic.
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$a Vaskovicova, M $u The PIGMOD center, Institute of Animal Physiology and Genetics, v. v. i., The Czech Academy of Sciences, Libechov, Czech Republic.
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$a Senigl, F $u Institute of Molecular Genetics, The Czech Academy of Sciences, Praha 4, Czech Republic.
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$a Slouf, M $u Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic.
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$a Pavlova, E $u Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic.
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$a Ellederova, Z $u The PIGMOD center, Institute of Animal Physiology and Genetics, v. v. i., The Czech Academy of Sciences, Libechov, Czech Republic. ellederova@iapg.cas.cz.
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$a Stieger, K $u Department of Ophthalmology, Justus-Liebig-University, 35392, Giessen, Germany. Knut.stieger@augen.med.uni-giessen.de.
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