University Of Tasmania

File(s) under permanent embargo

Astrocytes in Alzheimer's Disease: Emerging Roles in Calcium Dysregulation and Synaptic Plasticity

journal contribution
posted on 2023-05-17, 03:20 authored by Vincent, AJ, Robert GasperiniRobert Gasperini, Lisa FoaLisa Foa, David SmallDavid Small
Alzheimer’s disease (AD) is caused by the accumulation of amyloid (A ), which induces progressive decline in learning, memory, and other cognitive functions. A is a neurotoxic protein that disrupts calcium signaling in neurons and alters synaptic plasticity. These effects lead to loss of synapses, neural network dysfunction, and inactivation of neuronal signaling. However, the precise mechanism by which A causes neurodegeneration is still not clear, despite decades of intensive research. The role of astrocytes in early cognitive decline is a major component of disease pathology that has been poorly understood. Recent research suggests that astrocytes are not simply passive support cells for neurons, but are active participants in neural information processing in the brain. A can disrupt astrocytic calcium signaling and gliotransmitter release, processes that are vital for astrocyteneuron communication. Therefore, astrocyte dysfunction may contribute to the earliest neuronal deficits in AD. Here we discuss emerging concepts in glial biology and the implications of astrocyte dysfunction on neurodegeneration in AD.


Publication title

Journal of Alzheimer's Disease








Menzies Institute for Medical Research


I O S Press

Place of publication


Rights statement

Copyright © 2010 IOS Press

Repository Status

  • Restricted

Socio-economic Objectives

Clinical health not elsewhere classified