Optimization of cationic lipid mediated gene transfer: structure-function, physico-chemical, and cellular studies

Marie Carrière¹, Isabelle Tranchant, Pierre-Antoine Niore

¹Laboratoire de Chimie Bioorganique et de Biotechnologie Moléculaire et Cellulaire, UMR 7001 CNRS ENSCP, Aventis ENSCP, Paris, France.

|February 27, 2003

Summary

Researchers enhanced cationic lipid-mediated gene transfer by evaluating structure-activity relationships and introducing novel lipid structures. They focused on lipid/DNA complexes, serum effects, and intracellular trafficking for improved gene delivery systems.

Area of Science:

Biochemistry
Molecular Biology
Gene Therapy

Background:

Cationic lipids are crucial for gene delivery, forming complexes with DNA.
Enhancing the efficiency of gene transfer mediated by these lipids is a key challenge in gene therapy.
Understanding the factors influencing lipid-DNA complex formation and cellular uptake is essential.

Purpose of the Study:

To rationalize the design of cationic lipids for enhanced gene transfer.
To investigate structure-activity relationships for optimizing lipid-based gene delivery.
To explore novel cationic lipid structures and their supramolecular organization with DNA.

Main Methods:

Structure-activity relationship analysis of cationic lipids.
Characterization of lipid/DNA complex supramolecular structures.
In vitro assessment of gene transfer efficiency in the presence of serum.
Investigation of intracellular trafficking pathways of lipoplexes.

Main Results:

Identification of key structural features influencing cationic lipid-mediated gene transfer.
Elucidation of the impact of serum on the stability and function of lipid/DNA complexes.
Characterization of lipoplex intracellular trafficking dynamics.
Demonstration of improved gene transfer with novel cationic lipid designs.

Conclusions:

Rational design based on structure-activity relationships significantly enhances cationic lipid-mediated gene transfer.
Supramolecular organization and serum stability are critical parameters for efficient gene delivery.
Novel reducible cationic lipids present a promising new avenue for advanced gene therapy applications.

Related Experiment Videos

Optimization of cationic lipid mediated gene transfer: structure-function, physico-chemical, and cellular studies

Related Concept Videos

Intestinal toxicity of functionalized polystyrene nanoplastics in NOD2 models of Crohn's disease susceptibility.

Exclusive enteral nutrition containing transforming growth factor-β improves intestinal barrier function in a colitis mouse model.

Correction: Bahloul et al. Investigating the Wound-Healing Potential of a Nanoemulsion-Gel Formulation of Pituranthos tortuosus Essential Oil. Gels 2024, 10, 155.

Using simple to more robust in vitro methods based on human pulmonary models to evaluate the acute and subacute toxicity of micro- and nanoplastics derived from 3D printing materials.

First preclinical evaluation of a thermogel delivering mitomycin C: sustained local release with preserved surgical safety in a large animal model.

Toxicity of polyethylene terephthalate and polylactic acid nanoplastics, pristine and weathered in environmentally-relevant conditions, to human intestinal cells representative of genetic susceptibility to Crohn's disease.

Comparative evaluation of nephrotoxicity and antibacterial activity of free and liposomal gentamicin in rats: Biochemical, molecular and histopathological analysis.

Repurposed Axitinib delivered via lipid-extruded PEGylated liposomes: 2D/3D breast cancer cell evaluation and in-vivo pharmacokinetics.

CS-PEG-modified long-circulating tanshinone I liposomes for enhanced lipid-lowering synergy with atorvastatin and reduced adverse effects.

A quality-by-design engineering strategy for hybrid lipid-random copolymer nanoparticles optimization: methotrexate loading and effectiveness studies.

A novel quantification method for unencapsulated doxorubicin in tissues: unlocking PK/PD and TK/TD insights for pegylated liposomal doxorubicin.

Carbon monoxide-releasing vesicles provide rapid and sustained inhibition of inflammatory pain in mice.

Use of Benzene-Free Carbomer 980 in the Formulation of Metronidazole Gel 0.75% and Demonstration of Equivalence with Carbomer 940.

New structures of human formylglycine-generating enzyme reveal features important for catalysis, disease and structure-based drug design.

Domino Effect in Epimer Self-Assembly Induces Diverse Hydrogel Properties for Biomedical Applications.

Renier H-cranioplasty Modifies Skull Shape More Than Total Vault Remodeling in Nonsyndromic Scaphocephaly: Artificial Intelligence-based Study.

An investigation on in vitro bacterial cell permeabilization of a ZnII-Curcumin complex along with exploration of the possibility of FtsZ inhibition by in silico simulation.

In vitro CRISPR/Cas9-RNP cleavage of CcYUC1 in Coffea canephora.

Related Experiment Videos

Optimization of cationic lipid mediated gene transfer: structure-function, physico-chemical, and cellular studies

Area of Science:

Background:

Purpose of the Study:

Main Methods:

Main Results:

Conclusions:

Related Concept Videos

Related Articles