Biochimica et Biophysica Acta
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Sphingolipid metabolites have emerged playing important roles in the pathogenesis of nonalcoholic fatty liver disease, whereas the underlying mechanism remains largely unknown. In the present study, we provide both in vitro and in vivo evidence showing a pathogenic role of sphingosine kinase 1 (...
Cerium oxide (CeO2) and Ce-doped nanostructured materials (NMs) are being seen as innovative therapeutic tools due to their exceptional antioxidant effects; nevertheless their bio-applications are still in their infancy. TiO2, Ce-TiO2 and CeO2-TiO2 NMs were synthesized by a bottom-up microemulsi...
Galactose oxidase (GaO) selectively oxidizes the primary hydroxyl of galactose to a carbonyl, facilitating targeted chemical derivatization of galactose-containing polysaccharides, leading to renewable polymers with tailored physical and chemical properties. Here we investigate the impact of a f...
Resistance to all known antibiotics is a growing concern worldwide, and has renewed the interest in antimicrobial peptides, a structurally diverse class of amphipathic molecules that essentially act on the bacterial membrane. Propelled by the antimicrobial potential of this compound class, we ha...
The interactions between three triterpene saponins: α-hederin, hederacoside C and ammonium glycyrrhizate with model lipids: cholesterol and dipalmitoylphosphatidylcholine (DPPC) are described. The oleanolic acid-type saponins (α-hederin and hederacoside C) were shown to form 1:1 complexes with l...
Cell-penetrating peptides (CPPs) have been extensively studied because of their ability to deliver various cargo molecules, which are often potential therapeutic agents. However, in most cases, the exact entry mechanism of CPPs is still unknown. In this study, we focused our attention on the mem...
Sphingomyelin is an important constituent of mammalian cell membranes. Its molecular structure is N-acyl-d-erythro-sphingosylphosphorylcholine. The N-acyls in sphingomyelin often contain 16-24 carbons that are mostly saturated chains; however, the monounsaturated 24:1(Δ15c) acyl chain is also co...
The location, orientation, order and dynamics of cholesterol in model membranes have been well characterized, therefore cholesterol is an ideal molecule for developing new methods for studying structured molecules undergoing rapid axially symmetric reorientation. The use of (13)C filtering via s...
Efficient liposome disruption inside the cells is a key for success with any type of drug delivery system. The efficacy of drug delivery is currently evaluated by direct visualization of labeled liposomes internalized by cells, not addressing objectively the release and distribution of the drug....