Article (Scientific journals)
An evaluation of the self-assembly enhancing properties of cell-derived hexameric amyloid-β.
Vadukul, Devkee M.; Vrancx, Céline; Burguet, Pierre et al.
2021In Scientific Reports, 11 (1), p. 11570
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Abstract :
[en] A key hallmark of Alzheimer's disease is the extracellular deposition of amyloid plaques composed primarily of the amyloidogenic amyloid-β (Aβ) peptide. The Aβ peptide is a product of sequential cleavage of the Amyloid Precursor Protein, the first step of which gives rise to a C-terminal Fragment (C99). Cleavage of C99 by γ-secretase activity releases Aβ of several lengths and the Aβ42 isoform in particular has been identified as being neurotoxic. The misfolding of Aβ leads to subsequent amyloid fibril formation by nucleated polymerisation. This requires an initial and critical nucleus for self-assembly. Here, we identify and characterise the composition and self-assembly properties of cell-derived hexameric Aβ42 and show its assembly enhancing properties which are dependent on the Aβ monomer availability. Identification of nucleating assemblies that contribute to self-assembly in this way may serve as therapeutic targets to prevent the formation of toxic oligomers.
Disciplines :
Chemistry
Author, co-author :
Vadukul, Devkee M.
Vrancx, Céline
Burguet, Pierre  ;  Université de Liège - ULiège > Département de chimie (sciences) > Laboratoire de spectrométrie de masse (L.S.M.)
Contino, Sabrina
Suelves, Nuria
Serpell, Louise C.
Quinton, Loïc  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie biologique
Kienlen-Campard, Pascal
Language :
English
Title :
An evaluation of the self-assembly enhancing properties of cell-derived hexameric amyloid-β.
Publication date :
2021
Journal title :
Scientific Reports
eISSN :
2045-2322
Publisher :
Nature Publishing Group, London, United Kingdom
Volume :
11
Issue :
1
Pages :
11570
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 August 2021

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