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Cross-interactions between the Alzheimer Disease Amyloid-β Peptide and Other Amyloid Proteins: A Further Aspect of the Amyloid Cascade Hypothesis

机译:阿尔茨海默病淀粉样蛋白β肽与其他淀粉样蛋白之间的交叉相互作用:淀粉样蛋白级联假说的另一个方面

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摘要

Many protein folding diseases are intimately associated with accumulation of amyloid aggregates. The amyloid materials formed by different proteins/peptides share many structural similarities, despite sometimes large amino acid sequence differences. Some amyloid diseases constitute risk factors for others, and the progression of one amyloid disease may affect the progression of another. These connections are arguably related to amyloid aggregates of one protein being able to directly nucleate amyloid formation of another, different protein: the amyloid cross-interaction. Here, we discuss such cross-interactions between the Alzheimer disease amyloid-β (Aβ) peptide and other amyloid proteins in the context of what is known from in vitro and in vivo experiments, and of what might be learned from clinical studies. The aim is to clarify potential molecular associations between different amyloid diseases. We argue that the amyloid cascade hypothesis in Alzheimer disease should be expanded to include cross-interactions between Aβ and other amyloid proteins.
机译:许多蛋白质折叠疾病与淀粉样蛋白聚集物的积累密切相关。尽管有时氨基酸序列差异很大,但由不同蛋白质/肽形成的淀粉样物质具有许多结构相似性。一些淀粉样蛋白疾病构成其他淀粉样蛋白疾病的危险因素,一种淀粉样蛋白疾病的进展可能会影响另一种淀粉样蛋白疾病的进展。这些联系可以说与一种蛋白质的淀粉状蛋白聚集体有关,该聚集体能够直接成核另一种不同蛋白质的淀粉状蛋白形成:淀粉状蛋白交叉相互作用。在这里,我们讨论了阿尔茨海默氏病淀粉样蛋白β(Aβ)肽与其他淀粉样蛋白之间的这种交叉相互作用,这是从体内和体外实验中了解到的,以及可以从临床研究中学到的。目的是阐明不同淀粉样蛋白疾病之间的潜在分子关联。我们认为阿尔茨海默氏病的淀粉样蛋白级联假说应扩大到包括Aβ与其他淀粉样蛋白之间的交叉相互作用。

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