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Article Dans Une Revue Chemical Biology and Drug Design Année : 2014

Synthesis of New Lipoic Acid Conjugates and Evaluation of Their Free Radical Scavenging and Neuroprotective Activities.

Résumé

A series of new lipoic acid derivatives were designed and synthesized as multitarget ligands against Alzheimer's disease. In particular, analogues combining both lipoic acid and cysteine core structures were synthesized. The antioxidant properties of these compounds were evaluated by 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS*+) radical cation scavenging assays and ferrous ion chelation. The antioxidant potential of the synthesized compounds was also evaluated in a cellular context and compared to α-lipoic acid and its reduced form, dihydrolipoic acid. The antioxidant effects observed for these compounds in vitro confirmed the importance of free thiol functions for effective antioxidant capacities. However, these promising in vitro results were not mirrored by the antioxidant activity in T67 cell line. This suggests that multiple factors are at stake and warrant further investigations.

Domaines

Chimie organique

Dates et versions

hal-01004800 , version 1 (11-06-2014)

Identifiants

Citer

Maria Laura Bolognesi, Christian Bergamini, Romana Fato, Joël Oiry, Jean-Jacques Vasseur, et al.. Synthesis of New Lipoic Acid Conjugates and Evaluation of Their Free Radical Scavenging and Neuroprotective Activities.. Chemical Biology and Drug Design, 2014, 83 (6), pp.688-696. ⟨10.1111/cbdd.12282⟩. ⟨hal-01004800⟩
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