Silica Nanodepletors: Targeting and Clearing Alzheimer's β‐Amyloid Plaques
- Molecular Recognition Research Center Korea Institute of Science and Technology (KIST) Department of HY‐KIST Bio‐convergence Hanyang University Seoul 02792 Republic of Korea, Department of Chemistry Korea University Seoul 02841 Republic of Korea
- Department of Materials Science and Engineering Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak‐ro, Yuseong‐gu Daejeon 34141 Republic of Korea
- Biosciences Argonne National Laboratory Argonne IL 60439 USA
- Gwangju Center Korea Basic Science Institute (KBSI) Gwangju 61186 Republic of Korea
- Center for Biomaterials Biomedical Research Institute KIST Seoul 02792 Republic of Korea
- Department of Chemistry Korea University Seoul 02841 Republic of Korea
- Division of Analytical Science Korea Basic Science Institute (KBSI) Daejeon 34133 Republic of Korea
- X‐ray Science Division Argonne National Laboratory Argonne IL 60439 USA
- Center for Nanoscale Materials Argonne National Laboratory Argonne IL 60439 USA
- Molecular Recognition Research Center Korea Institute of Science and Technology (KIST) Department of HY‐KIST Bio‐convergence Hanyang University Seoul 02792 Republic of Korea
Abstract Abnormal accumulation of β‐amyloid (Aβ) peptide aggregates in the brain is a major hallmark of Alzheimer's disease (AD). Aβ aggregates interfere with neuronal communications, ultimately causing neuronal damage and brain atrophy. Much effort has been made to develop AD treatments that suppress Aβ aggregate formation, thereby attenuating Aβ‐induced neurotoxicity. Here, the design of Aβ nanodepletors consisting of ultralarge mesoporous silica nanostructures and anti‐Aβ single‐chain variable fragments, with the goal of targeting and eliminating aggregative Aβ monomers, is reported. The Aβ nanodepletors impart a notable decline in Aβ aggregate formation, resulting in significant mitigation of Aβ‐induced neurotoxicity in vitro. Furthermore, stereotaxic injections of Aβ nanodepletors into the brain of an AD mouse model system successfully suppress Aβ plaque formation in vivo up to ≈30%, suggesting that Aβ nanodepletors can serve as a promising antiamylodoisis material.
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1599932
- Journal Information:
- Advanced Functional Materials, Journal Name: Advanced Functional Materials Journal Issue: 15 Vol. 30; ISSN 1616-301X
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- Germany
- Language:
- English
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