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Efficient and low cytotoxicity gene carriers based on amine-functionalized polyvinylpyrrolidone

Prado, A. D.; Civantos, A.; Martínez-Campos, E.; Levkin, Pavel A. ORCID iD icon 1; Reinecke, H.; Gallardo, A.; Elvira, C.
1 Institut für Biologische und Chemische Systeme (IBCS), Karlsruher Institut für Technologie (KIT)


Non-viral vectors are a safety tool for gene therapy to deliver therapeutic genes. Among the different non-viral vectors, polyvinylpyrrolidone (PVP), a well-known hydrosoluble, neutral, and non-toxic polymer, satisfies the requirements and becomes a suitable candidate for gene delivery. In this study, we describe the preparation of polyvinylpyrrolidones decorated with pyrrolidine, piperidine, and piperazine groups, and evaluate them in vitro as non-viral gene carriers. The properties of these new systems are compared with those of hyperbranched polyethyleneimine (PEI) used as a positive control. Their ability to complex DNA at different N/P molar ratios, from 1:1 up to 10:1, was studied through agarose gel electrophoresis and dynamic light scattering. The resulting complexes (polyplexes) were characterized and evaluated in vitro with murine fibroblast (Swiss 3T3) as non-viral gene carriers, using luciferase as the reporter gene and a calcein cytocompatibility assay. All the copolymers condensed DNA to a particle average size between 100–400 nm when used at N/P ratios of 4:1 or higher. The copolymers with piperidine groups showed higher transfection efficiency than the pyrrolidine and piperazine modified copolymers, and even higher than the positive control of PEI at N/P ratios of 4:1 or higher. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000126942
Veröffentlicht am 01.12.2020
DOI: 10.3390/polym12112724
Zitationen: 4
Zitationen: 5
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Biologische und Chemische Systeme (IBCS)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 2073-4360
KITopen-ID: 1000126942
HGF-Programm 47.01.01 (POF III, LK 01) Biol.Netzwerke u.Synth.Regulat. ITG+ITC
Erschienen in Polymers
Verlag MDPI
Band 12
Heft 11
Seiten Art.-Nr.: 2724
Vorab online veröffentlicht am 17.11.2020
Schlagwörter polyvinylpyrrolidone; cationic polymers; biomaterials; cytocompatibility; transfection
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