14050-42-1Relevant articles and documents
New class of squalene-based releasable nanoassemblies of paclitaxel, podophyllotoxin, camptothecin and epothilone A
Borrelli, Stella,Christodoulou, Michael S.,Ficarra, Ilaria,Silvani, Alessandra,Cappelletti, Graziella,Cartelli, Daniele,Damia, Giovanna,Ricci, Francesca,Zucchetti, Massimo,Dosio, Franco,Passarella, Daniele
, p. 179 - 190 (2014)
The present study reports the preparation of a novel class of squalene conjugates with paclitaxel, podophyllotoxin, camptothecin and epothilone A. The obtained compounds are characterized by a squalene tail that makes them able to self-assemble in water,
Design and characterization of Squalene-Gusperimus nanoparticles for modulation of innate immunity
Navarro Chica, Carlos E.,de Haan, Bart J.,Faas,Smink, Alexandra M.,Sierra, Ligia,de Vos, Paul,López, Betty L.
, (2020/10/02)
Immunosuppressive drugs are widely used for the treatment of autoimmune diseases and to prevent rejection in organ transplantation. Gusperimus is a relatively safe immunosuppressive drug with low cytotoxicity and reversible side effects. It is highly hydrophilic and unstable. Therefore, it requires administration in high doses which increases its side effects. To overcome this, here we encapsulated gusperimus as squalene-gusperimus nanoparticles (Sq-GusNPs). These nanoparticles (NPs) were obtained from nanoassembly of the squalene gusperimus (Sq-Gus) bioconjugate in water, which was synthesized starting from squalene. The size, charge, and dispersity of the Sq-GusNPs were optimized using the response surface methodology (RSM). The colloidal stability of the Sq-GusNPs was tested using an experimental block design at different storage temperatures after preparing them at different pH conditions. Sq-GusNPs showed to be colloidally stable, non-cytotoxic, readily taken up by cells, and with an anti-inflammatory effect sustained over time. We demonstrate that gusperimus was stabilized through its conjugation with squalene and subsequent formation of NPs allowing its controlled release. Overall, the Sq-GusNPs have the potential to be used as an alternative in approaches for the treatment of different pathologies where a controlled release of gusperimus could be required.
Nanolipid-trehalose conjugates and nano-assemblies as putative autophagy inducers
Colombo, Eleonora,Biocotino, Michele,Frapporti, Giulia,Randazzo, Pietro,Christodoulou, Michael S.,Piccoli, Giovanni,Polito, Laura,Seneci, Pierfausto,Passarella, Daniele
, (2019/09/10)
The disaccharide trehalose is an autophagy inducer, but its pharmacological application is severely limited by its poor pharmacokinetics properties. Thus, trehalose was coupled via suitable spacers with squalene (in 1:2 and 1:1 stoichiometry) and with betulinic acid (1:2 stoichiometry), in order to yield the corresponding nanolipid-trehalose conjugates 1-Sq-mono, 2-Sq-bis and 3-Be-mono. The conjugates were assembled to produce the corresponding nano-assemblies (NAs) Sq-NA1, Sq-NA2 and Be-NA3. The synthetic and assembly protocols are described in detail. The resulting NAs were characterized in terms of loading and structure, and tested in vitro for their capability to induce autophagy. Our results are presented and thoroughly commented upon.
