4.7 Article

Nano-encapsulation using macrocyclic carbohydrate polymers (β-cyclodextrins) of Periploca angustifolia extract: Physical stability and protective effect against cadmium-induced alterations in HepG2 cells

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ELSEVIER
DOI: 10.1016/j.ijbiomac.2018.12.044

关键词

beta-Cyclodextrins; Nano-encapsulation; Periploca angustifolia phenolic extract

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  1. Department of Biology in Faculty of Sciences of Sfax (Tunisia)

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The nano-encapsulation of Periploca angustifolia phenolic extract using the macrocyclic carbohydrate polymers (beta-cyclodextrins) is a most approach compared with other encapsulation methods. In this work, the beta-Cyclodextrins-PAE complex stability has been evaluated by advanced analytical methods and techniques including HPLC, FTIR and XRD. The results showed that CdCl2 treatment caused a significant decrease in cell viability. The CdCl2-induced damage in the HepG2 cells were significantly ameliorated (p < 0.001) by treatment of the PAE and beta-Cyclodextrins-PAE complex. Thus, pretreatment with 100 mu g mL(-1) of beta-Cyclodextrins-PAE complex significantly protect HepG2 cells against cytotoxicity induced by cadmium exposure more effectively than PAE only. However, Cd-intoxication significantly (p < 0.001) increased these enzymes activity. Additionally, reactive oxygen species generation was significantly decreased when cells were treated with nano-encapsulation PAE. The levels of supernatant antioxidant parameters including superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and GSH were significantly (p < 0.001) decreased in Cd-treated cells with concomitant enhancement of lipid peroxidation. In addition, beta-Cyclodextrins-PAE pretreatment significantly (p < 0.01) inhibited Cd-exposure activated the apoptotic pathway caspace-3 and caspace-9. This effect may be due to the ability of beta-Cyclodextrins molecules to enhance stability and permeability properties. (C) 2018 Published by Elsevier B.V.

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