The Interaction of Lingo-1 and Amyloid Precursor Protein

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The Interaction of Lingo-1 and Amyloid Precursor Protein

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Title: The Interaction of Lingo-1 and Amyloid Precursor Protein
Author: de Laat, Rian C.
Abstract: Proteolytic cleavage of amyloid precursor protein (APP) generates the amyloid β peptide (Aβ), the main component of cortical and subcortical plaques in Alzheimer's disease (AD). APP can be processed at the cell surface or within endosomes after endocytosis, and via an amyloidogenic or non-amyloidogenic pathway. Along the amyloidogenic pathway, APP is first cleaved by β-secretase followed by γ-secretase to produce Aβ. The non-amyloidogenic pathway involves cleavage by α-secretase and then γ-secretase. Aβ generation is thought to occur in a variety of organelles where APP, β- and γ-secretase reside. Proteins that regulate endocytosis and trafficking can thus control the qualitative proteolysis of APP, and consequently may be associated with pathophysiology of AD. One such protein is Lingo-1, which promotes APP trafficking to the lysosome and concomitant degradation, independent of the secretory pathway. In this manner, Lingo-1 may function as a control mechanism for APP levels.
Description: Thesis (Ph.D.)--University of Washington, 2012
Author requested restriction: No embargo

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