作者: Slavomira Doktorovova , Amélia M Silva , Isabel Gaivão , Eliana B Souto , João P Teixeira
DOI: 10.1002/JAT.2961
关键词:
摘要: Cationic solid lipid nanoparticles (cSLN) are colloidal carriers for genes or drugs, particularly lipophilic drugs. Several reports exist on their high efficiency, but only a few studies report the effect of cSLNs living cells. In present work, internalization, cell viability (alamar blue assay) and genotoxic potential (alkaline comet three cSLN formulations (A–C) were evaluated in HepG2 Caco-2 showed an average hydrodynamic diameter (z-ave) 141–222 nm, zeta-potential 55.0–72.5 mV polidispersity indices (PdI) 0.336–0.421. Dispersion physiological buffers increased z-ave PdI. 0.01 mg ml–1 unaffected viability, 1.0 mg ml–1 significantly decreased it, being cSLN-C (Compritol-based) most toxic affected. DNA damage was not by 0.1 mg ml–1 observed at cSLN-C. Thus, no genotoxicity is to be expected concentrations that do reduce viability. Copyright © 2013 John Wiley & Sons, Ltd.