scholarly journals PEGylated dendrimer-entrapped gold nanoparticles with low immunogenicity for targeted gene delivery

RSC Advances ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 1265-1273 ◽  
Author(s):  
Bei Xu ◽  
Aijun Li ◽  
Xinxin Hao ◽  
Rui Guo ◽  
Xiangyang Shi ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Gene Delivery ◽  
Transfection Efficiency ◽  
Gene Transfection ◽  
Targeted Gene Delivery

The designed Au DENPs-PEG-FA compacts pDNA into cells to enhance gene transfection efficiency.

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.

Biosynthetic nanobubbles for targeted gene delivery by focused ultrasound

Nanoscale ◽  
2019 ◽  
Vol 11 (31) ◽  
pp. 14757-14768 ◽  
Author(s):  
Baihetiya Tayier ◽  
Zhiting Deng ◽  
Yu Wang ◽  
Wei Wang ◽  
Yuming Mu ◽  
...  
Keyword(s):  
Gene Delivery ◽  
Focused Ultrasound ◽  
Transfection Efficiency ◽  
Gene Transfection ◽  
Targeted Gene Delivery

Cationic biosynthetic nanobubbles combined with ultrasound lead to significantly improved gene transfection efficiency.

Receptor-Mediated Gene Delivery Using Chitosan Derivatives In Vitro and In Vivo

2007 ◽  
Vol 342-343 ◽  
pp. 449-452 ◽  
Author(s):  
Tae Hee Kim ◽  
Hua Jin ◽  
Hyun Woo Kim ◽  
Myung Haing Cho ◽  
Jae Woon Nah ◽  
...  
Keyword(s):  
Gene Delivery ◽  
Delivery System ◽  
Transfection Efficiency ◽  
Viral Gene ◽  
Gene Delivery System ◽  
Targeted Gene Delivery ◽  
Cell Specificity ◽  
Selective Delivery

The key strategy for the advancement of gene therapy is the development of an efficient targeted gene delivery system into cells. The targeted gene delivery system is especially important in non-viral gene transfer which shows the relatively low transfection efficiency. It also opens the possibility of selective delivery of therapeutic plasmids to specific tissues. Chitosan has been considered to be a good candidate for gene delivery system, since it is already known as a biocompatible, biodegradable, and low toxic material with high cationic potential. However, low specificity and low transfection efficiency of chitosan need to be overcome prior to clinical trial. In this study, we focused on the chemical modification of chitosan for enhancement of cell specificity and transfection efficiency. Also, the potential of clinical application was investigated.

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.

scholarly journals Interaction kinetics of peptide lipids-mediated gene delivery

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Yinan Zhao ◽  
Tianyi Zhao ◽  
Yanyan Du ◽  
Yingnan Cao ◽  
Yang Xuan ◽  
...  
Keyword(s):  
Gene Delivery ◽  
Transfection Efficiency ◽  
Gene Transfection ◽  
Endosomal Escape ◽  
Late Endosomes ◽  
Key Factor ◽  
Interaction Kinetics ◽  
Dna Release

Abstract Background During the course of gene transfection, the interaction kinetics between liposomes and DNA is speculated to play very important role for blood stability, cellular uptake, DNA release and finally transfection efficiency. Results As cationic peptide liposomes exhibited great gene transfer activities both in vitro and in vivo, two peptide lipids, containing a tri-ornithine head (LOrn3) and a mono-ornithine head (LOrn1), were chosen to further clarify the process of liposome-mediated gene delivery in this study. The results show that the electrostatically-driven binding between DNA and liposomes reached nearly 100% at equilibrium, and high affinity of LOrn3 to DNA led to fast binding rate between them. The binding process between LOrn3 and DNA conformed to the kinetics equation: y = 1.663631 × exp (− 0.003427x) + 6.278163. Compared to liposome LOrn1, the liposome LOrn3/DNA lipoplex exhibited a faster and more uniform uptake in HeLa cells, as LOrn3 with a tri-ornithine peptide headgroup had a stronger interaction with the negatively charged cell membrane than LOrn1. The efficient endosomal escape of DNA from LOrn3 lipoplex was facilitated by the acidity in late endosomes, resulting in broken carbamate bonds, as well as the “proton sponge effect” of the lipid. Conclusions The interaction kinetics is a key factor for DNA transfection efficiency. This work provided insights into peptide lipid-mediated DNA delivery that could guide the development of the next generation of delivery systems for gene therapeutics.

scholarly journals Combining Hyaluronic Acid with Chitosan Enhances Gene Delivery

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Ana V. Oliveira ◽  
Diogo B. Bitoque ◽  
Gabriela A. Silva
Keyword(s):  
Hyaluronic Acid ◽  
Gene Delivery ◽  
Transfection Efficiency ◽  
Gene Transfection ◽  
Retinal Pigment ◽  
Retinal Pigment Epithelial Cells ◽  
Nonviral Vectors ◽  
Anionic Polymer ◽  
Dna Release

The low gene transfer efficiency of chitosan-DNA polyplexes is a consequence of their high stability and consequent slow DNA release. The incorporation of an anionic polymer is believed to loosen chitosan interactions with DNA and thus promote higher transfection efficiencies. In this work, several formulations of chitosan-DNA polyplexes incorporating hyaluronic acid were prepared and characterized for their gene transfection efficiency on both HEK293 and retinal pigment epithelial cells. The different polyplex formulations showed morphology, size, and charge compatible with a role in gene delivery. The incorporation of hyaluronic acid rendered the formulations less stable, as was the goal, but it did not affect the loading and protection of the DNA. Compared with chitosan alone, the transfection efficiency had a 4-fold improvement, which was attributed to the presence of hyaluronic acid. Overall, our hybrid chitosan-hyaluronic acid polyplexes showed a significant improvement of the efficiency of chitosan-based nonviral vectorsin vitro, suggesting that this strategy can further improve the transfection efficiency of nonviral vectors.

Receptor-Mediated Gene Delivery Using Chitosan Derivatives In Vitro and In Vivo

2007 ◽  
Vol 539-543 ◽  
pp. 641-646 ◽  
Author(s):  
Tae Hee Kim ◽  
Jin Hua ◽  
Hyun Woo Kim ◽  
Myung Haing Cho ◽  
Jae Woon Nah ◽  
...  
Keyword(s):  
Gene Delivery ◽  
Delivery System ◽  
Transfection Efficiency ◽  
Viral Gene ◽  
Gene Delivery System ◽  
Targeted Gene Delivery ◽  
Cell Specificity ◽  
Selective Delivery

The development of an efficient targeted gene delivery system into cells is an important strategy for the advancement of gene therapy. The targeted gene delivery system is especially important in non-viral gene transfer which shows the relative low transfection efficiency. And it also opens the possibility of selective delivery of therapeutic plasmids to specific tissues. Chitosan has been considered to be a good candidate for gene delivery system, since it is already known as a biocompatible, biodegradable, and low toxic material with high cationic potential. However, low specificity and low transfection efficiency of chitosan need to be overcome prior to clinical trial. In this study, we focused on the chemical modification of chitosan for enhancement of cell specificity and transfection efficiency.

An acoustic field-based conformal transfection system for improving gene delivery efficiency

2021 ◽  
Author(s):  
Liting Xie ◽  
Jieqiong Wang ◽  
Shuai Zhao ◽  
Manlin Lai ◽  
Tian'an Jiang ◽  
...  
Keyword(s):  
Gene Delivery ◽  
Acoustic Field ◽  
Transfection Efficiency ◽  
Gene Transfection ◽  
High Specificity ◽  
Low Toxicity ◽  
Delivery Efficiency

Ultrasound-activated microbubbles destruction is a promising platform for gene delivery due to the low toxicity, non-invasiveness, and high specificity. However, the gene transfection efficiency is still low, especially for suspension...

Fabrication of aminated poly(glycidyl methacrylate)-based polymers for co-delivery of anticancer drugs and the p53 gene

2020 ◽  
Vol 8 (41) ◽  
pp. 9555-9565 ◽  
Author(s):  
Lei Li ◽  
Hongrui Tian ◽  
Jinlin He ◽  
Mingzu Zhang ◽  
Zuguang Li ◽  
...  
Keyword(s):  
Gene Delivery ◽  
Protein Aggregation ◽  
Anticancer Drugs ◽  
Glycidyl Methacrylate ◽  
Transfection Efficiency ◽  
Gene Transfection ◽  
P53 Gene

Aminated poly(glycidyl methacrylate)-based polymers for gene delivery not only can reduce toxicity and improve solubility, but can improve gene transfection efficiency and reduce protein aggregation.

Lipid-Coated Gold Nanoparticles Functionalized by Folic Acid as Gene Vectors for Targeted Gene Delivery in vitro and in vivo

ChemMedChem ◽  
2017 ◽  
Vol 12 (21) ◽  
pp. 1768-1775 ◽  
Author(s):  
Baoji Du ◽  
Xiaoxiao Gu ◽  
Xu Han ◽  
Guanyu Ding ◽  
Yuling Wang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Folic Acid ◽  
Gene Delivery ◽  
Targeted Gene Delivery ◽  
Gene Vectors
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