Circadian Control of Heparan Sulfate Levels Times Phagocytosis of Amyloid Beta Aggregates
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Authors
Clark, Gretchen T.
Yu, Yanlei
Urban, Cooper A.
Fu, Guo
Wang, Chunyu
Zhang, Fuming
Linhardt, Robert J.
Hurley, Jennifer M.
Issue Date
2022-02-10
Type
Article
Language
ENG
Keywords
Biology , Chemistry and chemical biology , Chemical and biological engineering , Biomedical engineering
Alternative Title
Abstract
Alzheimer’s Disease (AD) is a neuroinflammatory disease characterized partly by the inability to clear, and subsequent build-up, of amyloid-beta (Aβ). AD has a bi-directional relationship with circadian disruption (CD) with sleep disturbances starting years before disease onset. However, the molecular mechanism underlying the relationship of CD and AD has not been elucidated. Myeloid-based phagocytosis, a key component in the metabolism of Aβ, is circadianly-regulated, presenting a potential link between CD and AD. In this work, we revealed that the phagocytosis of Aβ42 undergoes a daily circadian oscillation. We found the circadian timing of global heparan sulfate proteoglycan (HSPG) biosynthesis was the molecular timer for the clock-controlled phagocytosis of Aβ and that both HSPG binding and aggregation may play a role in this oscillation. These data highlight that circadian regulation in immune cells may play a role in the intricate relationship between the circadian clock and AD.
Description
PLOS Genetics, 18(2): e1009994
Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Full Citation
Circadian Control of Heparan Sulfate Levels Times Phagocytosis of Amyloid Beta Aggregates. G. T. Clark, Y. Yu, C. A. Urban, G. Fu, C. Wang, F. Zhang, R. J. Linhardt, J. M. Hurley, PLOS Genetics, 18(2): e1009994, 2022.
Publisher
Public Library of Science (PLoS)
Terms of Use
Journal
Volume
Issue
PubMed ID
DOI
ISSN
15537404
15537390
15537390