Cited by 11Alzheimer's disease research and treatmentsMedicinal Plants and NeuroprotectionCalpain Protease Function and Regulation

RETRACTED ARTICLE: Fuzhisan, a Chinese Herbal Medicine, Inhibits Beta-Amyloid-Induced Neurotoxicity and Tau Phosphorylation Through Calpain/Cdk5 Pathway in Cultured Cortical Neurons

Zhang, Zhaoxu, Zhao, Ruiping, Tang, Ying, Wen, Shirong, Wang, Desheng, Qi, Jiping·2011·Neurochemical Research

Abstract

It has been shown that β-amyloid (Aβ) induced hyperphosphorylation of tau is implicated in the pathogenesis of Alzheimer's disease (AD), and deregulation of cyclin-dependent kinase 5 (Cdk5) activity is involved in the abnormal tau phosphorylation. The cleavage of neuron-specific Cdk5 activator, p35, to p25, mediated by calpain and calcium, deregulates Cdk5 activity and promotes neurodegeneration. Fuzhisan (FZS), a Chinese herbal complex prescription that has been used for the treatment of AD for over 15 years, is known to enhance the cognitive ability in AD patients. In this study, we investigated the neuroprotective effects and potential molecular mechanisms of FZS against Aβ(25-35)-induced toxicity in cultured cortical neurons. We revealed that FZS attenuated Aβ(25-35)-induced neurotoxicity in a dose-dependent manner. FZS inhibited Aβ(25-35)-induced activation of Cdk5 and decreased tau hyperphosphorylation although it did not directly inhibit Cdk5. In addition, FZS also blocked Aβ(25-35)-induced calcium influx, calpain activation and decreased cleavage of p35 to p25.

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Crossref · 10.1007/s11064-011-0405-6This paper is marked retracted.

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Authors
Zhang, Z., Zhao, R., Tang, Y., Wen, S., Wang, D., & Qi, J.
Affiliations
Harbin Medical University (CN)
Corresponding author
  • Wang, Desheng
  • Qi, Jiping
Venue
Neurochemical Research
Published
2011-01-18
Volume
36
Issue
5
Pages
801-811
ISSN
  • 0364-3190 (ISSN-L)
  • 1573-6903
OpenAlex
W2616672701
Cited by
11
References
38
Citations by year
2024: 1 · 2020: 2 · 2016: 1 · 2014: 1 · 2013: 1 · 2012: 3
FWCI
1.53
Type
journal article
Language
en
Status
Retracted
Open access
closed
Locations
  • Neurochemical Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Harbin Medical University
  • National Natural Science Foundation of China
  • Natural Science Foundation of Heilongjiang Province
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plants and Neuroprotection
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Calpain Protease Function and Regulation
Keywords
Chinese herbal medicine, Alzheimer's disease, amyloid-beta, tau hyperphosphorylation, cyclin-dependent kinase 5, calpain, calcium influx, neuroprotection, cortical neurons, neurotoxicity
MeSH terms
Animals, Calcium, Calpain, Cells, Cultured, Cerebral Cortex, Drugs, Chinese Herbal, Enzyme Activation, Phosphorylation, Amyloid beta-Peptides, tau Proteins, Rats, Wistar, Cyclin-Dependent Kinase 5, Rats

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