Structure optimization of dendritic lipopeptide based gene vectors with the assistance from molecular dynamic simulation

Journal of Materials Chemistry. B, Materials for Biology and Medicine
Hong LiangYu Nie

Abstract

Disulfide modified lipopeptide assemblies with an arginine-rich dendritic periphery provide a promising platform for effective gene transfer. Dendritic arginine peptides that mimic the cell-penetrating peptides of a virus envelope are vital for complexation, interaction with physical barriers, and final gene release. Here, we report three lipopeptides with different-generation dendritic peripheries (R1LS, R2LS and R3LS), each of which contains a dioleoyl-l-lysinate hydrophobic tail. Such molecules were proven to self-assemble in aqueous solution with different morphologies, sizes, and surface zeta potentials. R2LS and R3LS assemblies showed spherical and spindle shapes with zeta potentials of 27.2 and 32.8 mV, respectively. They exhibited complete condensation of pDNA at a low N/P ratio, while R1LS assemblies displayed a fiber pattern with a relatively low electric potential of 10.9 mV with poor DNA binding ability. In a cellular viability experiment, R1LS and R2LS have no significant cytotoxicity even at high dosage, while R3LS showed conspicuous toxicity. As a gene vector, R2LS presented high gene transfection efficiency either in the presence or the absence of serum, which was 58.7% greater than liposome 2000 and PEI in the ...Continue Reading

References

Apr 18, 2002·Proceedings of the National Academy of Sciences of the United States of America·Jean M J Fréchet
Aug 16, 2002·Pharmaceutical Research·Bernd H ZinselmeyerIjeoma F Uchegbu
Dec 21, 2007·Proceedings of the National Academy of Sciences of the United States of America·Henry D Herce, Angel E Garcia
Feb 7, 2008·The Journal of Physical Chemistry. B·Yuri S VelichkoMonica Olvera de la Cruz
Nov 21, 2009·FEBS Letters·Nathan SchmidtGerard C L Wong
Jan 12, 2010·Current Opinion in Structural Biology·Siyang SunMichael G Rossmann
Jul 28, 2010·Journal of Controlled Release : Official Journal of the Controlled Release Society·Martin Piest, Johan F J Engbersen
Sep 25, 2010·Chemical Society Reviews·Sukumaran Santhosh BabuTakashi Nakanishi
Oct 16, 2010·Journal of Controlled Release : Official Journal of the Controlled Release Society·Kui LuoZhongwei Gu
Feb 24, 2011·Journal of the American Chemical Society·One-Sun LeeGeorge C Schatz
Apr 18, 2013·Nature Communications·Valentina BagnacaniRocco Ungaro
Feb 27, 2015·Chemical Reviews·Guocan YuFeihe Huang
May 23, 2015·Biomaterials·Viola B Morris, Vinod Labhasetwar
May 14, 2016·Journal of Controlled Release : Official Journal of the Controlled Release Society·Jisang YooYeu-Chun Kim
Jul 18, 2017·Bioorganic & Medicinal Chemistry Letters·Zhipeng KeWei Xiao
Jul 28, 2017·Journal of Computational Chemistry·Titus Adrian Beu, Alexandra Farcaş
Aug 23, 2017·Chemical Society Reviews·Matthew J Webber, Robert Langer
Nov 11, 2017·Biomacromolecules·Jonathan O'Keeffe AhernWenxin Wang
Nov 21, 2017·Chemical Society Reviews·Serge MignaniJean-Pierre Majoral
Jan 26, 2018·The Journal of Physical Chemistry. B·Mojca SeručnikBarbara Hribar-Lee
Jul 26, 2018·Journal of Molecular Recognition : JMR·Farideh Badalkhani-KhamsehNasser L Hadipour
Apr 14, 2018·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Yi LinBin He
Sep 21, 2015·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Xianghui XuZhongwei Gu

❮ Previous
Next ❯

Methods Mentioned

BETA
transfection
column chromatography
silica column chromatography
dynamic light scattering
transmission electron microscopy
electrophoresis
nuclear magnetic resonance

Software Mentioned

Material Studio
DS ) Visualizer
Excel
Dmol3
pcff
Discovery Studio (
Materials Studio

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.