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Isolation and Characterization of Heparan Sulfate Containing Amyloid Precursor Protein Degradation Products

Mani, Katrin LU orcid (2022) In Methods in Molecular Biology 2303. p.279-288
Abstract

Numerous studies indicate that heparan sulfate proteoglycans (HSPGs) participate in a network of complex molecular events involving amyloid precursor protein (APP) processing and formation, oligomerization, intracellular targeting, clearance, and propagation of amyloid β in Alzheimer’s disease (AD). A mutual functional interplay between recycling glypican-1 and APP processing has been demonstrated where the HS released from glypican-1 by a Cu/NO-ascorbate-dependent reaction forms a conjugate with APP degradation products and undergoes an endosome-nucleus-autophagosome co-trafficking. HS has been shown to display contradictory and dual effects in AD involving both prevention and promotion of amyloid β formation. It is therefore important... (More)

Numerous studies indicate that heparan sulfate proteoglycans (HSPGs) participate in a network of complex molecular events involving amyloid precursor protein (APP) processing and formation, oligomerization, intracellular targeting, clearance, and propagation of amyloid β in Alzheimer’s disease (AD). A mutual functional interplay between recycling glypican-1 and APP processing has been demonstrated where the HS released from glypican-1 by a Cu/NO-ascorbate-dependent reaction forms a conjugate with APP degradation products and undergoes an endosome-nucleus-autophagosome co-trafficking. HS has been shown to display contradictory and dual effects in AD involving both prevention and promotion of amyloid β formation. It is therefore important to identify the source, detailed structural features as well as factors that favor formation of the neuroprotective forms of HS. Here, a method for isolation and identification of HS-containing APP degradation products has been described. The method is based on isolation of radiolabeled HS followed by identification of accompanying APP degradation products by SDS-PAGE and Western blotting.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Alzheimer’s disease, Amyloid β, Glypican-1, Heparan sulfate
host publication
Methods in Molecular Biology
series title
Methods in Molecular Biology
volume
2303
pages
10 pages
publisher
Humana Press
external identifiers
  • pmid:34626386
  • scopus:85117145188
ISSN
1064-3745
1940-6029
DOI
10.1007/978-1-0716-1398-6_22
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2022, Springer Science+Business Media, LLC, part of Springer Nature.
id
7962cb7d-3098-41d0-8218-0e0db8105ab2
date added to LUP
2021-11-01 13:41:08
date last changed
2024-04-06 12:18:26
@inbook{7962cb7d-3098-41d0-8218-0e0db8105ab2,
  abstract     = {{<p>Numerous studies indicate that heparan sulfate proteoglycans (HSPGs) participate in a network of complex molecular events involving amyloid precursor protein (APP) processing and formation, oligomerization, intracellular targeting, clearance, and propagation of amyloid β in Alzheimer’s disease (AD). A mutual functional interplay between recycling glypican-1 and APP processing has been demonstrated where the HS released from glypican-1 by a Cu/NO-ascorbate-dependent reaction forms a conjugate with APP degradation products and undergoes an endosome-nucleus-autophagosome co-trafficking. HS has been shown to display contradictory and dual effects in AD involving both prevention and promotion of amyloid β formation. It is therefore important to identify the source, detailed structural features as well as factors that favor formation of the neuroprotective forms of HS. Here, a method for isolation and identification of HS-containing APP degradation products has been described. The method is based on isolation of radiolabeled HS followed by identification of accompanying APP degradation products by SDS-PAGE and Western blotting.</p>}},
  author       = {{Mani, Katrin}},
  booktitle    = {{Methods in Molecular Biology}},
  issn         = {{1064-3745}},
  keywords     = {{Alzheimer’s disease; Amyloid β, Glypican-1; Heparan sulfate}},
  language     = {{eng}},
  pages        = {{279--288}},
  publisher    = {{Humana Press}},
  series       = {{Methods in Molecular Biology}},
  title        = {{Isolation and Characterization of Heparan Sulfate Containing Amyloid Precursor Protein Degradation Products}},
  url          = {{http://dx.doi.org/10.1007/978-1-0716-1398-6_22}},
  doi          = {{10.1007/978-1-0716-1398-6_22}},
  volume       = {{2303}},
  year         = {{2022}},
}