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Article Publish Status: FREE
Abstract Title:

Fucoxanthin prevents H2O2-induced neuronal apoptosis via concurrently activating the PI3-K/Akt cascade and inhibiting the ERK pathway.

Abstract Source:

Food Nutr Res. 2017 ;61(1):1304678. Epub 2017 Mar 28. PMID: 28469544

Abstract Author(s):

Jie Yu, Jia-Jia Lin, Rui Yu, Shan He, Qin-Wen Wang, Wei Cui, Jin-Rong Zhang

Article Affiliation:

Jie Yu

Abstract:

Background: As a natural carotenoid abundant in chloroplasts of edible brown algae, fucoxanthin possesses various health benefits, including anti-oxidative activity in particular. Objective: In the present study, we studied whether fucoxanthin protected against hydrogen peroxide (H2O2)-induced neuronal apoptosis. Design: The neuroprotective effects of fucoxanthin on H2O2-induced toxicity were studied in both SH-SY5Y cells and primary cerebellar granule neurons. Results: Fucoxanthin significantly protected against H2O2-induced neuronal apoptosis and intracellular reactive oxygen species. H2O2 treatment led to the reduced activity of phosphoinositide 3-kinase (PI3-K)/Akt cascade and the increased activity of extracellular signal-regulated kinase (ERK) pathway in SH-SY5Y cells. Moreover, fucoxanthin significantly restored the altered activities of PI3-K/Akt and ERK pathways induced by H2O2. Both specific inhibitors of glycogen synthase kinase 3β (GSK3β) and mitogen-activated protein kinase kinase (MEK) significantly protected against H2O2-induced neuronal death. Furthermore, the neuroprotective effects of fucoxanthin against H2O2-induced neuronal death were abolished by specific PI3-K inhibitors. Conclusions: Our data strongly revealedthat fucoxanthin protected against H2O2-induced neurotoxicity via concurrently activating the PI3-K/Akt cascade and inhibiting the ERK pathway, providing support for the use of fucoxanthin to treat neurodegenerative disorders induced by oxidative stress.

Study Type : In Vitro Study

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Sayer Ji
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