Volume 9, Issue 3 (Vol.9 No.3 Oct 2020)                   rbmb.net 2020, 9(3): 297-308 | Back to browse issues page


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Vakilian H, Andres Rojas E, Habibi Rezaei L, Behmanesh M. Fabrication and Optimization of Linear PEI-Modified Crystal Nanocellulose as an Efficient Non-Viral Vector for In-Vitro Gene Delivery. rbmb.net. 2020; 9 (3) :297-308
URL: http://rbmb.net/article-1-398-en.html
Nano biotechnology Department, Faculty of Bioscience, Tarbiat Modares University, Tehran, Iran & Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
Abstract:   (412 Views)
Background: One of the major challenges in gene therapy is producing gene carriers that possess high transfection efficiency and low cytotoxicity (1). To achieve this purpose, crystal nanocellulose (CNC) -based nanoparticles grafted with polyethylenimine (PEI) have been developed as an alternative to traditional viral vectors to eliminate potential toxicity and immunogenicity.

Methods: In this study, CNC-PEI10kDa (CNCP) nanoparticles were synthetized and their transfection efficiency was evaluated and compared with linear cationic PEI10kDa (PEI) polymer in HEK293T (HEK) cells. Synthetized nanoparticles were characterized with AFM, FTIR, DLS, and gel retardation assays. In-vitro gene delivery efficiency by nano-complexes and their effects on cell viability were determined with fluorescent microscopy and flow cytometry.

Results: Prepared CNC was oxidized with sodium periodate and its surface cationized with linear PEI. The new CNCP nano-complex showed different transfection efficiencies at different nanoparticle/plasmid ratios, which were greater than those of PEI polymer. CNPC and Lipofectamine were similar in their transfection efficiencies and effect on cell viability after transfection.

Conclusions: CNCP nanoparticles are appropriate candidates for gene delivery. This result highlights CNC as an attractive biomaterial and demonstrates how its different cationized forms may be applied in designing gene delivery systems.
Full-Text [PDF 452 kb]   (108 Downloads)    
Type of Article: Original Article | Subject: Molecular Biology
Received: 2019/09/2 | Accepted: 2019/09/2 | Published: 2020/12/1

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