scholarly journals Lysine-based amino-functionalized lipids for gene transfection: 3D phase behaviour and transfection performance

2018 ◽  
Vol 20 (25) ◽  
pp. 17393-17405 ◽  
Author(s):  
Stephanie Tassler ◽  
Dorota Pawlowska ◽  
Christopher Janich ◽  
Julia Giselbrecht ◽  
Simon Drescher ◽  
...  
Keyword(s):  
Cell Lines ◽  
Gene Transfection ◽  
Cationic Lipids ◽  
Phase Behaviour ◽  
Viral Gene ◽  
Aqueous Dispersions ◽  
Lipid Mixtures

New cationic lipids designed for non-viral gene transfection form lamellar and non-lamellar mesophases in aqueous dispersions. The lipid mixtures with DNA show a panoply of mesophases. Surprisingly, the lamellar lipoplex with OO10 has the best transfection performance in different cell lines.

Synthesis and gene transfection activity of cyclen-based cationic lipids with asymmetric acyl-cholesteryl hydrophobic tails

2014 ◽  
Vol 12 (21) ◽  
pp. 3484-3492 ◽  
Author(s):  
Bao-Quan Liu ◽  
Wen-Jing Yi ◽  
Ji Zhang ◽  
Qiang Liu ◽  
Yan-Hong Liu ◽  
...  
Keyword(s):  
Gene Transfection ◽  
Cationic Lipids ◽  
Viral Gene ◽  
Gene Vectors

Novel cyclen-based cationic lipids with asymmetric acyl-cholesteryl hydrophobic tails were synthesized and applied as non-viral gene vectors.

Comparison of the efficiency and toxicity of sonoporation with branched polyethylenimine-mediated gene transfection in various cultured cell lines

2008 ◽  
Vol 16 (10) ◽  
pp. 773-779 ◽  
Author(s):  
Chang S. Yoon ◽  
Hye S. Jung ◽  
Tae K. Kim ◽  
Min J. Kwon ◽  
Mi K. Kim ◽  
...  
Keyword(s):  
Cell Lines ◽  
Gene Transfection ◽  
Cultured Cell ◽  
Branched Polyethylenimine

scholarly journals Growth of immortal simian virus 40 tsA-transformed human fibroblasts is temperature dependent.

1989 ◽  
Vol 9 (7) ◽  
pp. 3093-3096 ◽  
Author(s):  
R L Radna ◽  
Y Caton ◽  
K K Jha ◽  
P Kaplan ◽  
G Li ◽  
...  
Keyword(s):  
Cell Lines ◽  
Human Fibroblasts ◽  
Simian Virus 40 ◽  
Simian Virus ◽  
T Antigen ◽  
Cellular Aging ◽  
Cellular Growth ◽  
Viral Gene ◽  
Large T Antigen ◽  
Temperature Dependent

Simian virus 40 (SV40)-mediated transformation of human fibroblasts offers an experimental system for studying both carcinogenesis and cellular aging, since such transformants show the typical features of altered cellular growth but still have a limited life span in culture and undergo senescence. We have previously demonstrated (D. S. Neufeld, S. Ripley, A. Henderson, and H. L. Ozer, Mol. Cell. Biol. 7:2794-2802, 1987) that transformants generated with origin-defective mutants of SV40 show an increased frequency of overcoming senescence and becoming immortal. To clarify further the role of large T antigen, we have generated immortalized transformants by using origin-defective mutants of SV40 encoding a heat-labile large T antigen (tsA58 transformants). At a temperature permissive for large-T-antigen function (35 degrees C), the cell line AR5 had properties resembling those of cell lines transformed with wild-type SV40. However, the AR5 cells were unable to proliferate or form colonies at temperatures restrictive for large-T-antigen function (39 degrees C), demonstrating a continuous need for large T antigen even in immortalized human fibroblasts. Such immortal temperature-dependent transformants should be useful cell lines for the identification of other cellular or viral gene products that induce cell proliferation in human cells.

scholarly journals Aliphatic Quaternary Ammonium Functionalized Nanogels for Gene Delivery

Pharmaceutics ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1964
Author(s):  
Huaiying Zhang ◽  
Damla Keskin ◽  
Willy H. de Haan-Visser ◽  
Guangyue Zu ◽  
Patrick van Rijn ◽  
...  
Keyword(s):  
Gene Delivery ◽  
Tertiary Amine ◽  
Quaternary Ammonium ◽  
Gene Transfection ◽  
Genetic Material ◽  
Cationic Lipid ◽  
Endosomal Escape ◽  
Hereditary Diseases ◽  
Viral Gene

Gene therapy is a promising treatment for hereditary diseases, as well as acquired genetic diseases, including cancer. Facing the complicated physiological and pathological environment in vivo, developing efficient non-viral gene vectors is needed for their clinical application. Here, poly(N-isopropylacrylamide) (p(NIPAM)) nanogels are presented with either protonatable tertiary amine groups or permanently charged quaternized ammonium groups to achieve DNA complexation ability. In addition, a quaternary ammonium-functionalized nanogel was further provided with an aliphatic moiety using 1-bromododecane to add a membrane-interacting structure to ultimately facilitate intracellular release of the genetic material. The ability of the tertiary amine-, quaternized ammonium-, and aliphatic quaternized ammonium-functionalized p(NIPAM) nanogels (i.e., NGs, NGs-MI, and NGs-BDD, respectively) to mediate gene transfection was evaluated by fluorescence microscopy and flow cytometry. It is observed that NGs-BDD/pDNA complexes exhibit efficient gene loading, gene protection ability, and intracellular uptake similar to that of NGs-MI/pDNA complexes. However, only the NGs-BDD/pDNA complexes show a notable gene transfer efficiency, which can be ascribed to their ability to mediate DNA escape from endosomes. We conclude that NGs-BDD displays a cationic lipid-like behavior that facilitates endosomal escape by perturbing the endosomal/lysosomal membrane. These findings demonstrate that the presence of aliphatic chains within the nanogel is instrumental in accomplishing gene delivery, which provides a rationale for the further development of nanogel-based gene delivery systems.

scholarly journals Phase behaviour of three-component lipid mixtures

2005 ◽  
Vol 17 (31) ◽  
pp. S2951-S2956 ◽  
Author(s):  
S Komura ◽  
H Shirotori ◽  
P D Olmsted
Keyword(s):  
Phase Behaviour ◽  
Lipid Mixtures

scholarly journals Cationic lipids with a cyclen headgroup: synthesis and structure–activity relationship studies as non-viral gene vectors

RSC Advances ◽  
2017 ◽  
Vol 7 (30) ◽  
pp. 18681-18689 ◽  
Author(s):  
De-Chun Chang ◽  
Yi-Mei Zhang ◽  
Ji Zhang ◽  
Yan-Hong Liu ◽  
Xiao-Qi Yu
Keyword(s):  
Gene Delivery ◽  
Structure Activity Relationship ◽  
Cationic Lipids ◽  
Activity Relationship ◽  
Viral Gene ◽  
Structure Activity Relationships ◽  
Structure Activity ◽  
Gene Delivery Vectors ◽  
Gene Vectors ◽  
Viral Gene Delivery

The structure–activity relationships of cyclen-based cationic lipids as non-viral gene delivery vectors were studied and clarified.

Cholesterol derived cationic lipids as potential non-viral gene delivery vectors and their serum compatibility

2016 ◽  
Vol 26 (10) ◽  
pp. 2401-2407 ◽  
Author(s):  
Jia Ju ◽  
Meng-Lei Huan ◽  
Ning Wan ◽  
Yi-Lin Hou ◽  
Xi-Xi Ma ◽  
...  
Keyword(s):  
Gene Delivery ◽  
Cationic Lipids ◽  
Viral Gene ◽  
Gene Delivery Vectors ◽  
Viral Gene Delivery
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