Abstract
Amyloid fibres are stable, persistent and highly ordered aggregates of mis-folded protein that accumulate in tissues and are a prominent feature of the pathology of a wide range of human diseases. The presumed role of amyloid as a causative factor of tissue damage is based largely on guilt by association. However, growing understanding of the nature of amyloid, its formation by a nucleated growth mechanism from destabilised and partially unfolded precursors and its persistence at sites of deposition has provided the foundation for the development of approaches to inhibit amyloid formation and enable its clearance. In spite of intensive study, our understanding of the detailed structure of amyloid itself remains incomplete although crossed-β structure is clearly a common constituent. On the other hand detailed structural understanding of transthyretin, β-secretase and serum amyloid P component is contributing to the design of small molecule compounds to target amyloid. Thyroxin mimetics stabilise the native tetrameric protein structure. β-secretase inhibitors will limit the production of the amyloidogenic Aβ1-42 polypeptide. Compounds that crosslink serum amyloid P component rapidly deplete the plasma and amyloid-βound pool of this protein. The efficacy of these compounds as drugs to prevent formation or enable removal of amyloid will provide a stringent test of the amyloid hypothesis of disease.
Keywords: Amyloid Diseases, tetrameric protein, serum amyloid
Current Drug Targets
Title: Perspectives for Drug Intervention in Amyloid Diseases
Volume: 5 Issue: 2
Author(s): Simon Kolstoe and Steve Wood
Affiliation:
Keywords: Amyloid Diseases, tetrameric protein, serum amyloid
Abstract: Amyloid fibres are stable, persistent and highly ordered aggregates of mis-folded protein that accumulate in tissues and are a prominent feature of the pathology of a wide range of human diseases. The presumed role of amyloid as a causative factor of tissue damage is based largely on guilt by association. However, growing understanding of the nature of amyloid, its formation by a nucleated growth mechanism from destabilised and partially unfolded precursors and its persistence at sites of deposition has provided the foundation for the development of approaches to inhibit amyloid formation and enable its clearance. In spite of intensive study, our understanding of the detailed structure of amyloid itself remains incomplete although crossed-β structure is clearly a common constituent. On the other hand detailed structural understanding of transthyretin, β-secretase and serum amyloid P component is contributing to the design of small molecule compounds to target amyloid. Thyroxin mimetics stabilise the native tetrameric protein structure. β-secretase inhibitors will limit the production of the amyloidogenic Aβ1-42 polypeptide. Compounds that crosslink serum amyloid P component rapidly deplete the plasma and amyloid-βound pool of this protein. The efficacy of these compounds as drugs to prevent formation or enable removal of amyloid will provide a stringent test of the amyloid hypothesis of disease.
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Cite this article as:
Kolstoe Simon and Wood Steve, Perspectives for Drug Intervention in Amyloid Diseases, Current Drug Targets 2004; 5 (2) . https://dx.doi.org/10.2174/1389450043490622
DOI https://dx.doi.org/10.2174/1389450043490622 |
Print ISSN 1389-4501 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-5592 |
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