Abstract:
:During the last 20 years, an expanding body of research has elucidated the central role of amyloid precursor protein (APP) processing and amyloid beta peptide (Abeta) production in the risk, onset, and progression of the neurodegenerative disorder Alzheimer's disease (AD), the most common form of dementia. Ongoing research is establishing a greater level of detail for our understanding of the normal functions of APP, its proteolysis products, and the mechanisms by which this processing occurs. The importance of this processing machinery in normal cellular function, such as Notch processing, has revealed specific concerns about targeting APP processing for therapeutic purposes. Aspects of AD that are now well studied include direct and indirect genetic and other risk factors for AD, APP processing, and Abeta production. Emerging from these studies is the particular importance of the long form of Abeta, Abeta42. Elevated Abeta42 levels, as well as particularly the elevation of the ratio of Abeta42 to the shorter major form Abeta40, has been identified as important in early events in the pathogenesis of AD. The specific pathological importance of Abeta42 has drawn attention to seeking drugs that will selectively lower the levels of this peptide through reduced production or increased clearance while allowing normal protein processing to remain substantially intact. An increasing variety of compounds that modulate APP processing to reduce Abeta levels are being identified, some with Abeta42 selectivity. Such compounds are now reaching clinical evaluation to determine how they may be of benefit in the treatment of AD.
journal_name
Pharmacol Therjournal_title
Pharmacology & therapeuticsauthors
Findeis MAdoi
10.1016/j.pharmthera.2007.06.006subject
Has Abstractpub_date
2007-11-01 00:00:00pages
266-86issue
2eissn
0163-7258issn
1879-016Xpii
S0163-7258(07)00143-Xjournal_volume
116pub_type
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更新日期:1996-01-01 00:00:00
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更新日期:2012-06-01 00:00:00
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更新日期:2004-09-01 00:00:00
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更新日期:2007-03-01 00:00:00
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