申请人:Prana Biotechnology Ltd
公开号:US07704987B1
公开(公告)日:2010-04-27
The present invention relates to compounds which inhibit the binding of metal ions to a region in the N-terminal loop of the β-amyloid peptide which includes a cluster of histidine residues. In addition, the invention relates to pharmaceutical compositions including these compounds as the active agent, and to methods of treatment involving the administration of these compounds. The compounds of the invention are useful in the treatment of Alzheimer's Disease and other amyloid-related conditions. In a first aspect the present invention provides a compound which interacts with the β-amyloid peptide in such a way that the N-terminal loop of the peptide (amino acid residues 1-15) is blocked or destabilised, thereby inhibiting the binding of one or more metal ions to at least one histidine residue within the N-terminal loop. Preferably the compound inhibits binding of Cu2+, Zn2+ and Fe3+ ions, but not Mg2+ or Ca2+ ions.
本发明涉及抑制金属离子与β-淀粉样肽N-末端环的结合的化合物,该环包括组氨酸残基簇。此外,本发明涉及包括这些化合物作为活性剂的药物组合物,以及涉及涉及这些化合物的给药治疗方法。本发明的化合物可用于治疗阿尔茨海默病和其他与淀粉样相关的疾病。在第一个方面,本发明提供一种与β-淀粉样肽相互作用的化合物,使得肽的N-末端环(氨基酸残基1-15)被阻塞或不稳定,从而抑制金属离子与N-末端环内至少一个组氨酸残基的结合。最好的情况下,该化合物抑制Cu2+、Zn2+和Fe3+离子的结合,但不抑制Mg2+或Ca2+离子的结合。