RETRACTED ARTICLE: Fuzhisan, a Chinese Herbal Medicine, Inhibits Beta-Amyloid-Induced Neurotoxicity and Tau Phosphorylation Through Calpain/Cdk5 Pathway in Cultured Cortical Neurons
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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Fuzhisan demonstrated a neuroprotective effect by inhibiting Aβ(25-35)-induced activation of cyclin-dependent kinase 5, calcium influx, calpain activation and tau hyperphosphorylation.
“Fuzhisan (FZS), a herbal drug, demonstrated a neuroprotective effect by inhibiting Aβ (25–35)-induced activation of cyclin-dependent kinase 5, calcium influx, calpain activation and tau hyperphosphorylation [18].”
From Indian Medicinal Herbs and Formulations for Alzheimer’s Disease, from Traditional Knowledge to Scientific Assessment (2020) · cites this paper as [18]
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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
- Update notices
- retraction (2012-02-22)
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- 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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