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Vitamin D-binding Protein-Loaded PLGA Nanoparticles Suppress Alzheimer's Disease-Related Pathology in 5XFAD Mice

Seong Gak Jeon, Moon-Yong Cha, Jin-Il Kim, Tae Woong Hwang, Kyoung Ah Kim, Tae Hyoung Kim, Ki Chang Song, Jwa-Jin Kim, Minho Moon

Nanomedicine. 2019 Apr;17:297-307.

PMID: 30794963

Abstract:

The aggregation and accumulation of amyloid beta (Aβ) peptide is believed to be the primary cause of Alzheimer's disease (AD) pathogenesis. Vitamin D-binding protein (DBP) can attenuate Aβ aggregation and accumulation. A biocompatible polymer poly (D,L-lactic acid-co-glycolic acid) (PLGA) can be loaded with therapeutic agents and control the rate of their release. In the present study, a PLGA-based drug delivery system was used to examine the therapeutic effects of DBP-PLGA nanoparticles in Aβ-overexpressing (5XFAD) mice. DBP was loaded into PLGA nanoparticles and the characteristics of the DBP-PLGA nanoparticles were analyzed. Using a thioflavin-T assay, we observed that DBP-PLGA nanoparticles significantly inhibited Aβ aggregation in vitro. In addition, we found that intravenous injection of DBP-PLGA nanoparticles significantly attenuated the Aβ accumulation, neuroinflammation, neuronal loss and cognitive dysfunction in the 5XFAD mice. Collectively, our results suggest that DBP-PLGA nanoparticles could be a promising therapeutic candidate for the treatment of AD.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
LS743143 PLGA nanoparticles PLGA nanoparticles Price
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