Protective and anti-oxidative effects of curcumin and resveratrol on Aβ-oligomer-induced damage in the SH-SY5Y cell line

Haibo Yu, Toru Yamashita, Xiao Hu, Zhihong Bian, Xinrang Hu, Tian Feng, Koh Tadokoro, Ryuta Morihara, Koji Abe

Research output: Contribution to journalArticlepeer-review

Abstract

Alzheimer's disease (AD) is a degenerative disorder characterized by the loss of synapses and neurons in the brain, and results in the accumulation of amyloid-based neurotic plaques. Amyloid-β oligomers (AβO) are widely accepted as the main neurotoxin that induces oxidative stress and neuronal loss in AD. In this study, an oxidative stress model of the neuroblastoma SH-SY5Y cell line exposed to AβO was established to simulate an AD cell model. Exposure to AβO significantly reduced the viability of cultured SH-SY5Y cells (p < 0.05) and significantly increased intracellular reactive oxygen species (ROS) (p < 0.01). AβO exposure also induced oxidative stress in SH-SY5Y cells. Furthermore, AβO significantly increased the level of hyperphosphorylation of tau at sites T181 and T205 in SH-SY5Y cells (p < 0.01). Using edaravone, a free radical scavenger with neuroprotective properties, as the control, the possible protective and anti-oxidative effects of curcumin (40 μM) and resveratrol (20 μM) were evaluated. The results suggest that curcumin and resveratrol decreased ROS generation, attenuated oxidative stress, inhibited tau hyperphosphorylation, and protected SH-SY5Y cells from AβO damage. Both curcumin and resveratrol are promising supplements or medicine as therapeutic agents for the treatment of AD.

Original languageEnglish
Article number120356
JournalJournal of the neurological sciences
Volume441
DOIs
Publication statusPublished - Oct 15 2022

Keywords

  • Alzheimer's disease (AD)
  • Amyloid-β oligomer (AβO)
  • Anti-oxidative
  • SH-SY5Y cells
  • Supplement

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

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