Self-assembling Janus dendritic polymer for gene delivery with low cytotoxicity and high gene transfection efficiency

2016 ◽  
Vol 4 (39) ◽  
pp. 6462-6467 ◽  
Author(s):  
Sheng-Gang Ding ◽  
Lei Yu ◽  
Long-Hai Wang ◽  
Lin-Ding Wang ◽  
Zhi-Qiang Yu ◽  
...  
Keyword(s):  
Gene Delivery ◽  
Transfection Efficiency ◽  
Gene Transfection ◽  
Dendritic Polymer ◽  
Self Assembling ◽  
High Gene ◽  
Low Cytotoxicity

Polycations have high DNA condensing ability, low immunogenicity, and great adaptability, which make them promising for gene delivery.

Development of new self-assembled cationic amino liposomes for efficient gene delivery

2020 ◽  
Vol 8 (11) ◽  
pp. 3021-3025 ◽  
Author(s):  
Yihang Wu ◽  
Yue Xiong ◽  
Ling Wang ◽  
Quanming Zhou ◽  
Linxian Li ◽  
...  
Keyword(s):  
Gene Delivery ◽  
Transfection Efficiency ◽  
Self Assembling ◽  
Efficient Gene ◽  
Self Assembled ◽  
Low Cytotoxicity

A library of lipidoids self-assembling to liposomes exhibits excellent transfection efficiency in HEK 293T cells and mESCs with low cytotoxicity.

scholarly journals Aromatic Thioacetal-Bridged ROS-Responsive Nanoparticles as Novel Gene Delivery Vehicles

Molecules ◽  
2018 ◽  
Vol 23 (8) ◽  
pp. 2061 ◽  
Author(s):  
Guo-Qing Lin ◽  
Wen-Jing Yi ◽  
Qiang Liu ◽  
Xue-Jun Yang ◽  
Zhi-Gang Zhao
Keyword(s):  
Gene Delivery ◽  
Transfection Efficiency ◽  
Gene Transfection ◽  
Zeta Potentials ◽  
Sar Studies ◽  
Gene Delivery Vectors ◽  
Efficient Gene ◽  
Delivery Vehicles ◽  
Low Cytotoxicity

In this report, a series of polycations are designed and synthesized by conjugating reactive oxygen species (ROS)-responsive thioacetal-linkers to low molecular weight (LMW) polyethylenimine (PEI) via ring-opening polymerization. Their structure–activity relationships (SARs) as gene delivery vectors are systematically studied. Although the MWs of the target polymers are only ~9 KDa, they show good DNA binding ability. The formed polyplexes, which are stable toward serum but decomposed under ROS-conditions, have appropriate sizes (180~300 nm) and positive zeta-potentials (+35~50 mV). In vitro experiments reveal that these materials have low cytotoxicity, and higher transfection efficiency (TE) than controls. Furthermore, the title polymers exhibit excellent serum tolerance. With the present of 10% serum, the TE of the polymers even increases up to 10 times higher than 25 KDa PEI and 9 times higher than Lipofectamine 2000. The SAR studies also reveal that electron-withdrawing groups on the aromatic ring in 4a may benefit to balance between the DNA condensation and release for efficient gene transfection.

scholarly journals Aminated β-Cyclodextrin-Modified-Carboxylated Magnetic Cobalt/Nanocellulose Composite for Tumor-Targeted Gene Delivery

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Thayyath Sreenivasan Anirudhan ◽  
Sylaja Raveendran Rejeena
Keyword(s):  
Gene Delivery ◽  
Transfection Efficiency ◽  
Gene Transfection ◽  
Luciferase Expression ◽  
High Dose ◽  
Targeted Gene Delivery ◽  
Life Threatening ◽  
High Gene ◽  
Good Biocompatibility ◽  
Potential Biodegradability

Gene therapy is a new kind of medicine, which uses genes as drugs in order to treat life threatening diseases. In the present work, a nonviral vector, aminated β-cyclodextrin-modified-carboxylated magnetic cobalt/nanocellulose composite (ACDC-Co/NCC), was synthesized for efficient transfection of genes into tumour cells. The synthesized ACDC-Co/NCC was characterized by means of FTIR, XRD, SEM, and ESR techniques. DNA condensing ability of ACDC-Co/NCC was found to be increased with increase in amount of ACDC-Co/NCC and 84.9% of DNA (1.0 μg/mL) inclusion was observed with 6.0 μg/mL of ACDC-Co/NCC. The cytotoxicity of ACDC-Co/NCC was observed to be minimal, even at higher concentration, with respect to the model transfecting agent, poly(ethyleneimine) (PEI). 88.2% of the gene was transfected at high dose of DNA, as indicated by the highest luciferase expression. These results indicated that ACDC-Co/NCC might be a promising candidate for gene delivery with the characteristics of good biocompatibility, potential biodegradability, minimal cytotoxicity, and relatively high gene transfection efficiency.

Combination of poly(ethylenimine) and chitosan induces high gene transfection efficiency and low cytotoxicity

2008 ◽  
Vol 105 (1) ◽  
pp. 65-68 ◽  
Author(s):  
Qing-Qing Zhao ◽  
Jin-Liang Chen ◽  
Min Han ◽  
Wen-Quan Liang ◽  
Yasuhiko Tabata ◽  
...  
Keyword(s):  
Transfection Efficiency ◽  
Gene Transfection ◽  
High Gene ◽  
Low Cytotoxicity

PGMA-based gene carriers with lipid molecules

2016 ◽  
Vol 4 (8) ◽  
pp. 1233-1243 ◽  
Author(s):  
Chen Xu ◽  
Bingran Yu ◽  
Hao Hu ◽  
Muhammad Naeem Nizam ◽  
Wei Yuan ◽  
...  
Keyword(s):  
Gene Therapy ◽  
Transfection Efficiency ◽  
Gene Transfection ◽  
Tumor Treatment ◽  
Gene Carriers ◽  
High Gene ◽  
Low Cytotoxicity

A series of effective cationic conjugations of lipid molecules with low cytotoxicity and high gene transfection efficiency were readily designed for gene therapy and tumor treatment.

Synthesis and Characterization of Polyethylenimine-Graft-Poly(L-Lactide-Co-Glycolide) Block Copolymers for Gene Delivery

2007 ◽  
Vol 342-343 ◽  
pp. 521-524
Author(s):  
Oju Jeon ◽  
Su Jin Song ◽  
Min Hyung Lee ◽  
Sang Woo Seo ◽  
Cha Yong Choi ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Gene Delivery ◽  
Transfection Efficiency ◽  
Gene Transfection ◽  
Gel Permeation Chromatography ◽  
Copolymer Composition ◽  
High Gene ◽  
Good Biocompatibility ◽  
Delivery Vehicles

Polyethylenimine-graft-poly(L-lactide-co-glycolide) (PEI-g-PLGA) block copolymers were prepared by a ring-opening polymerization of L-lactide and glycolide using PEI as a macroinitiator and stannous octoate as a catalyst in dimethylformamide at 100 °C. The molecular structure of the block copolymers was evaluated with 1H-NMR, and the molecular weight of the block copolymers was determined with gel permeation chromatography. The thermal properties were investigated using differential scanning calorimetery and thermogravimetric analysis. The zetapotential of the pDNA/copolymer complexes was evaluated with dynamic laser light scattering. Cytotoxicity and gene transfection efficiency of PEI-g-PLGA were tested in vitro using human embryonic kidney 293 cell culture. The pDNA/copolymer complexes (N/P = 10) showed a lower zeta-potential than pDNA/PEI25kDa complex, suggesting the lower toxicity of the pDNA/copolymer complexes. The copolymer composition was found to significantly affect the gene transfection efficiency of the pDNA/copolymer complexes. The copolymers with lower contents of PLGA showed higher gene transfection efficiency. These results indicate that these block copolymers are promising candidates for gene delivery vehicles, featuring good biocompatibility, potential biodegradability, and relatively high gene transfection efficiency.

A general strategy to achieve ultra-high gene transfection efficiency using lipid-nanoparticle composites

Biomaterials ◽  
2014 ◽  
Vol 35 (28) ◽  
pp. 8261-8272 ◽  
Author(s):  
Raviraj Vankayala ◽  
Chi-Shiun Chiang ◽  
Jui-I. Chao ◽  
Chiun-Jye Yuan ◽  
Shyr-Yeu Lin ◽  
...  
Keyword(s):  
Transfection Efficiency ◽  
Gene Transfection ◽  
General Strategy ◽  
Lipid Nanoparticle ◽  
High Gene ◽  
Nanoparticle Composites

Defined pH-sensitive nanogels as gene delivery platform for siRNA mediated in vitro gene silencing

2017 ◽  
Vol 5 (11) ◽  
pp. 2328-2336 ◽  
Author(s):  
Mathias Dimde ◽  
Falko Neumann ◽  
Felix Reisbeck ◽  
Svenja Ehrmann ◽  
Jose Luis Cuellar-Camacho ◽  
...  
Keyword(s):  
Gene Delivery ◽  
Gene Silencing ◽  
Transfection Efficiency ◽  
Genetic Material ◽  
Ph Sensitive ◽  
Carrier System ◽  
High Transfection Efficiency ◽  
Delivery Platform ◽  
Low Cytotoxicity

An advanced cationic carrier system which combines high transfection efficiency with low cytotoxicity and a control over the release of the encapsulated genetic material by the reduction of the multivalent architecture upon pH triggered degradation was developed.

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