Silica Nanodepletors: Targeting and Clearing Alzheimer's beta-Amyloid Plaques
Journal Article
·
· Advanced Functional Materials (Online)
Abnormal accumulation of beta-amyloid (A beta) peptide aggregates in the brain is a major hallmark of Alzheimer's disease (AD). A beta aggregates interfere with neuronal communications, ultimately causing neuronal damage and brain atrophy. Much effort has been made to develop AD treatments that suppress A beta aggregate formation, thereby attenuating A beta-induced neurotoxicity. Here, the design of A beta nanodepletors consisting of ultralarge mesoporous silica nanostructures and anti-A beta single-chain variable fragments, with the goal of targeting and eliminating aggregative A beta monomers, is reported. The A beta nanodepletors impart a notable decline in A beta aggregate formation, resulting in significant mitigation of A beta-induced neurotoxicity in vitro. Furthermore, stereotaxic injections of A beta nanodepletors into the brain of an AD mouse model system successfully suppress A beta plaque formation in vivo up to approximate to 30%, suggesting that A beta nanodepletors can serve as a promising antiamylodoisis material.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- Korea Institute of Science and Technology (KIST); National Research Foundation (NRF) of Korea; USDOE Office of Science - Office of Basic Energy Sciences
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1660950
- Journal Information:
- Advanced Functional Materials (Online), Journal Name: Advanced Functional Materials (Online) Journal Issue: 15 Vol. 30; ISSN 1616-3028
- Country of Publication:
- United States
- Language:
- English
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