The water transport system in astrocytes–Aquaporins

Z Zhou, J Zhan, Q Cai, F Xu, R Chai, K Lam, Z Luan… - Cells, 2022 - mdpi.com
Highlights (AQPs) are transmembrane proteins responsible for fast water movement across
cell membranes, including those of astrocytes. The expression and subcellular localization …

Astrocytes as master modulators of neural networks: Synaptic functions and disease‐associated dysfunction of astrocytes

JA Stogsdill, CC Harwell… - Annals of the New York …, 2023 - Wiley Online Library
Astrocytes are the most abundant glial cell type in the central nervous system and are
essential to the development, plasticity, and maintenance of neural circuits. Astrocytes are …

Emerging roles for dynamic aquaporin-4 subcellular relocalization in CNS water homeostasis

MM Salman, P Kitchen, A Halsey, MX Wang… - 2022 - academic.oup.com
Aquaporin channels facilitate bidirectional water flow in all cells and tissues. AQP4 is highly
expressed in astrocytes. In the CNS, it is enriched in astrocyte endfeet, at synapses, and at …

Loss of perivascular aquaporin-4 localization impairs glymphatic exchange and promotes amyloid β plaque formation in mice

M Simon, MX Wang, O Ismail, M Braun… - Alzheimer's research & …, 2022 - Springer
Background Slowed clearance of amyloid β (Aβ) is believed to underlie the development of
Aβ plaques that characterize Alzheimer's disease (AD). Aβ is cleared in part by the …

Genetic variation in Aquaporin-4 moderates the relationship between sleep and brain Aβ-amyloid burden

SR Rainey-Smith, GN Mazzucchelli… - Translational …, 2018 - nature.com
The glymphatic system is postulated to be a mechanism of brain Aβ-amyloid clearance and
to be most effective during sleep. Ablation of the astrocytic end-feet expressed water …

Astrocytes in the regulation of cerebrovascular functions

M Cohen‐Salmon, L Slaoui, N Mazaré, A Gilbert… - Glia, 2021 - Wiley Online Library
Astrocytes are the most numerous type of neuroglia in the brain and have a predominant
influence on the cerebrovascular system; they control perivascular homeostasis, the integrity …

Aqp4 stop codon readthrough facilitates amyloid-β clearance from the brain

D Sapkota, C Florian, BM Doherty, KM White… - Brain, 2022 - academic.oup.com
Alzheimer's disease is initiated by the toxic aggregation of amyloid-β. Immunotherapeutics
aimed at reducing amyloid beta are in clinical trials but with very limited success to date …

Cx43 carboxyl terminal domain determines AQP4 and Cx30 endfoot organization and blood brain barrier permeability

A Cibelli, R Stout, A Timmermann, L de Menezes… - Scientific reports, 2021 - nature.com
The neurovascular unit (NVU) consists of cells intrinsic to the vessel wall, the endothelial
cells and pericytes, and astrocyte endfeet that surround the vessel but are separated from it …

Cerebral microcirculation, perivascular unit, and glymphatic system: role of aquaporin-4 as the gatekeeper for water homeostasis

J Szczygielski, M Kopańska, A Wysocka… - Frontiers in …, 2021 - frontiersin.org
In the past, water homeostasis of the brain was understood as a certain quantitative
equilibrium of water content between intravascular, interstitial, and intracellular spaces …

Multifaceted roles of aquaporins in the pathogenesis of Alzheimer's Disease

K Yamada - International journal of molecular sciences, 2023 - mdpi.com
The central nervous system is highly dependent on water, and disturbances in water
homeostasis can have a significant impact on its normal functions. The regulation of water …