Cited by 239Alzheimer's disease research and treatmentsExtracellular vesicles in diseaseNanoparticle-Based Drug Delivery

Brain delivery of quercetin-loaded exosomes improved cognitive function in AD mice by inhibiting phosphorylated tau-mediated neurofibrillary tangles

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Qi, Yao, Guo, Lin, Jiang, Yibing, Shi, Yijie, Sui, Haijuan, Zhao, Liang·2020·Drug Delivery

Abstract

It is reported that quercetin (Que) can prevent tau pathology and induce neuroprotection by improving cognitive and functional symptoms in the treatment of Alzheimer's disease (AD). However, its clinical application has been limited due to its poor brain targeting and bioavailability. Exosomes are considered as cargo carriers for intercellular communication and especially serve as a natural and important drug brain delivery platform for achieving better treatment of central neurological diseases. Here, we developed plasma exosomes (Exo) loaded with Que (Exo-Que) to improve the drug bioavailability, enhance the brain targeting of Que and potently ameliorate cognitive dysfunction in okadaic acid (OA)-induced AD mice. Our results showed that Exo-Que improved brain targeting of Que as well as significantly enhanced bioavailability of Que. Furthermore, compared with free Que, Exo-Que better relieved the symptoms of AD by inhibiting cyclin-dependent kinase 5 (CDK5)-mediated phosphorylation of Tau and reducing formation of insoluble neurofibrillary tangles (NFTs), suggesting its therapeutic potential for better treatment of AD.

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  1. Elias D, Blot F, Otmany AE, et al. (2001). Curative treatment of peritoneal carcinomatosis arising from colorectal cancer by complete resection and intraperitoneal chemothe. Cancer 92: 71– 6. 11443611

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Authors
Qi, Y., Guo, L., Jiang, Y., Shi, Y., Sui, H., & Zhao, L.
Affiliations
Jinzhou Medical University (CN)
Corresponding author
Zhao, Liang
Venue
Drug Delivery
Published
2020-01
Volume
27
Issue
1
Pages
745-755
ISSN
  • 1071-7544 (ISSN-L)
  • 1521-0464
OpenAlex
W3025860373
Cited by
239
References
36
Citations by year
2026: 39 · 2025: 42 · 2024: 48 · 2023: 38 · 2022: 41 · 2021: 29 · 2020: 2
FWCI
16.54
Type
journal article
Language
en
Open access
Locations
  • Drug Delivery (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Natural Science Foundation of Liaoning Province (-ZD-)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
Keywords
quercetin, exosomes, Alzheimer's disease, brain drug delivery, neurofibrillary tangles, tau phosphorylation, cyclin-dependent kinase 5, cognitive impairment, plasma exosomes, drug bioavailability, neuroprotection
MeSH terms
Alzheimer Disease, Animals, Biological Availability, Brain, Cognition, Drug Carriers, Mice, Inbred C57BL, Neurons, Phosphorylation, Quercetin, Neurofibrillary Tangles, Rats, Sprague-Dawley, Neuroprotective Agents, Maze Learning, Exosomes

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