Cytotoxic and Antioxidant Activities of Imine Analogs of Trans-Resveratrol towards Murine Neuronal N2a Cells.

Fiche publication

Date publication

juillet 2022

Journal

Molecules (Basel, Switzerland)

Auteurs

Membres identifiés du Cancéropôle Est :
Dr LIZARD Gérard

Tous les auteurs :
Ksila M, Vejux A, Prost-Camus E, Durand P, Ghzaiel I, Nury T, Duprey D, Meziane S, Masmoudi-Kouki O, Latruffe N, Ghrairi T, Prost M, Lizard G, Vervandier-Fasseur D

Lien Pubmed

https://www.ncbi.nlm.nih.gov/pubmed/35897887

Résumé

-resveratrol is a natural polyphenol showing numerous biological properties, especially anti-tumoral and antioxidant activity. Among numerous resveratrol derivatives, aza-stilbenes, which bear an imine bound, show interesting biological activities. In the present study, we synthesized a series of imine analogs of -resveratrol (seven aza-stilbenes) following an easy and low-cost procedure of green chemistry. The toxicity of synthesized aza-stilbenes, which is currently unknown, was evaluated on murine neuronal N2a cells, comparatively to -resveratrol, by considering: cell density evaluated by staining with sulforhodamine 101; esterase activity, which is a criteria of cell viability, by staining with fluorescein diacetate; and transmembrane mitochondrial potential, which is known to decrease during cell death, by staining with DiOC(3) using flow cytometry. In addition, the antioxidant activity was quantified with the KRL (Kit Radicaux Libres) assay, the DPPH (2,2'-diphenyl-1-picrylhydrazyl radical) assay and the FRAP (ferric reducing antioxidant power) assay. The PAOT (Pouvoir Antioxidant Total) score was also used. The aza-stilbenes provide different cytotoxic and antioxidant activities, which are either higher or lower than those of -resveratrol. Based on their cytotoxic and antioxidant characteristics, all synthesized aza-stilbenes are distinguished from -resveratrol.