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Published October 2018 | public
Journal Article

Specific Glycosaminoglycan Chain Length and Sulfation Patterns Are Required for Cell Uptake of Tau vs. α-Synuclein and β-Amyloid Aggregates

Abstract

Transcellular propagation of protein aggregate "seeds" has been proposed to mediate the progression of neurodegeneraive diseases in tauopathies and α-synucleinopathies. We previously reported that tau and α-synuclein aggregates bind heparan sulfate proteoglycans (HSPGs) on the cell surface, promoting cellular uptake and intracellular seeding. However, the specificity and binding mode of these protein aggregates to HSPGs remain unknown. Here, we measured direct binding to modified heparins to determine the size and sulfation requirements for tau, α-synuclein, and β-amyloid (Aβ) aggregate binding to glycosaminoglycans (GAGs).

Additional Information

© 2018 American Neurological Association. Issue Online: 05 October 2018; Version of Record online: 05 October 2018. Manuscript accepted: 01 January 2018.

Additional details

Created:
August 19, 2023
Modified:
October 18, 2023