Journal
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
Volume 8, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fbioe.2020.614906
Keywords
curcumin; Alzheimer’ s disease; Aβ protein; carbon dots; Fe3O4 nanomaterial; drug delivery
Funding
- National Natural Science Foundation of China [82060599]
- Open Project of Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education [XN201911]
- Natural Science Foundation of Jiangxi Province [20202BABL213018]
- Scientific Research Fund of Jiangxi Provincial Education Department [GJJ190795, GJJ190827]
- Talents' Start-up Fund of Gannan Medical University [QD201825, QD201912]
- Research Fund of Gannan Medical University [ZD201901, YB201905, YB201931]
- Science and Technology Plan Post-subsidy Project of Ganzhou [2019-60-174]
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Alzheimer's disease (AD) is the most common neurodegenerative disease, which seriously affects human health but lacks effective treatment methods. Amyloid beta (A beta) aggregates are considered a possible target for AD treatment. Evidence is increasingly showing that curcumin (CUR) can partly protect cells from A beta-mediated neurotoxicity by inhibiting A beta aggregation. However, the efficiency of targeted cellular uptake and bioavailability of CUR is very low due to its poor stability and water-solubility. In order to better improve the cell uptake efficiency and bioavailability of CUR and reduce the cytotoxicity of high-dose CUR, a novel CUR delivery system for AD therapy has been constructed based on the employment of the Fe3O4@carbon dots nanocomposite (Fe3O4@CDs) as the carrier. CUR-Fe3O4@CDs have a strong affinity toward A beta and effectively inhibit extracellular A beta fibrillation. In addition, CUR-Fe3O4@CDs can inhibit the production of reactive oxygen species (ROS) mediated by A beta fibrils and the corresponding neurotoxicity in PC12 cells. More importantly, it can restore nerve damage and maintained neuronal morphology. These results indicate that the application of CUR-Fe3O4@CDs provides a promising platform for the treatment of AD.
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