title: Transition-metal-substituted polyoxometalate derivatives as functional anti-amyloid agents for Alzheimer's disease.
abstract: Inhibitions of amyloid β (Aβ) aggregation and Aβ-haem peroxidase-like activity have received much attention because these two symptoms can be the primary targets of therapeutic strategies for Alzheimer's disease (AD). Recently, our group found that polyoxometalate (POM) with a Wells-Dawson structure can efficiently inhibit Aβ aggregation. However, the interaction between POMs and Aβ is robust, but still needs to improve Aβ binding affinity. More importantly, it is unclear whether POMs can cross the blood-brain barrier and decrease Aβ-haem peroxidase-like activity. Here we show that our designed series of transition metal-functionalized POM derivatives with a defined histidine-chelated binding site have much better Aβ inhibition and peroxidase-like activity inhibition effects than the parent POM. More intriguingly, we show that these compounds can cross the blood-brain barrier and are metabolized after 48 h. Our work provides insights into the design, synthesis and screening of inorganic metal compounds as multifunctional therapeutic agents against AD.
authors.affiliation: Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
authors.forename: Nan
authors.initials: N
authors.lastname: Gao
authors.affiliation: Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
authors.forename: Hanjun
authors.initials: H
authors.lastname: Sun
authors.affiliation: Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Dong
authors.affiliation: Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
authors.forename: Jinsong
authors.initials: J
authors.lastname: Ren
authors.affiliation: Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
authors.forename: Taicheng
authors.initials: T
authors.lastname: Duan
authors.affiliation: Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
authors.forename: Can
authors.initials: C
authors.lastname: Xu
authors.affiliation: Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
authors.forename: Xiaogang
authors.initials: X
authors.lastname: Qu
mesh_terms: D000544:Alzheimer Disease / Q000188:drug therapy* / Q000378:metabolism*; D016229:Amyloid beta-Peptides / Q000037:antagonists & inhibitors* / Q000378:metabolism; D000818:Animals; D001813:Blood-Retinal Barrier / Q000378:metabolism; D066298:In Vitro Techniques; D051379:Mice; D013050:Spectrometry, Fluorescence; D028561:Transition Elements / Q000737:chemistry*; D017973:Tungsten Compounds / Q000737:chemistry* / Q000627:therapeutic use*; D000099294:Polyoxometalates
chemical_list: D016229:Amyloid beta-Peptides; D028561:Transition Elements; D017973:Tungsten Compounds; C102296:polyoxometalate I; D000099294:Polyoxometalates