Microglia As Primary Drivers Of Stress-induced Changes In Neuronal Connectivity
Funder
National Health and Medical Research Council
Funding Amount
$475,781.00
Summary
Persistent exposure to stressful events can produce serious and lasting disturbances in cognitive function. Our research group has recently identified that microglia may play a very significant role in these disturbances. The studies to be undertaken in this proposal will provide fundamental knowledge on how microglia contribute to neuronal plasticity, and how microglia via their effects on neurons regulate complex cognitive behaviour.
Using Astrocytes To Protect The Brain From Injury: Investigating Mechanisms And Therapeutic Strategies.
Funder
National Health and Medical Research Council
Funding Amount
$374,310.00
Summary
Brain damage caused by hypoxia (lack of oxygen) is a common problem in babies and can lead to outcomes ranging from cerebral palsy to death. We have a limited understanding of the mechanisms that cause damage, and thus very limited treatments. This project will investigate the role of cells called astrocytes in brain injury and identify novel therapeutic strategies to prevent or reverse brain damage. The outcomes of this research will ultimately lead to new treatments for hypoxic brain injury.
Microglial Paralysis In Post-stroke Neurodegeneration: Help Or Hindrance?
Funder
National Health and Medical Research Council
Funding Amount
$512,351.00
Summary
Dementia and cognitive decline may occur months or years after a stroke, associated with delayed loss of brain cells in different brain regions. We recently discovered that the cells responsible for protection and repair of brain, called microglia, become paralysed in these regions. We will use a live-imaging microscope to determine whether the microglial paralysis causes brain cell death. We will also determine if a commonly used stroke prevention drug can worsen the microglial paralysis.
Abnormalities in cells at the back of the eye called photoreceptors are associated with at least 50% of all cases of blindness in this country.This project will examine a novel mechanism of photoreceptor death. In particular, whether abnormalties in support cells at the back of the eye cause photoreceptors to lose contact with their nutrient source and die.
Neuron To Glia Signalling: Learning How Synaptic Signalling Can Promote CNS Remyelination
Funder
National Health and Medical Research Council
Funding Amount
$609,650.00
Summary
An immature cell type in the brain, known as the oligodendrocytes progenitor cell (OPC), receives direct electrical communication from neurons. This communication regulates the behavior of the OPC, affecting its ability to divide and generate new brain cells. This project will identify the signaling molecules that guide the OPC to for this specialized contact with the nerve cell. Understanding this communication has important implications for the treatment of Multiple Sclerosis.
The Role Of Gliosis In Advanced Retinal Degeneration
Funder
National Health and Medical Research Council
Funding Amount
$457,785.00
Summary
The development of treatments that restore vision assumes that the output neurons of the retina remain intact. Yet, there is now considerable evidence that the neurons that signal from the retina to the brain are altered in those that have degenerative diseases of the retina. Here, we will examine the cause of these cellular changes in an animal model and seek to prevent the loss of output neurons. This information is crucial for the development of treatments that seeks to restore vision.
The Role Of Innate Immune Memory In The Transition From Acute To Chronic Pain
Funder
National Health and Medical Research Council
Funding Amount
$331,440.00
Summary
Chronic pain costs Australians more than $34 billion annually and is the 3rd highest Australian disease burden. It has long been thought to be a disease of the wiring of the brain. This project aims to challenge this long held belief by examining the impact of the immune system in creating chronic pain. Such work promises to provide new and better ways to prevent chronic pain, which will improve & maintain good health for all Australians.
Properties And Functions Of Reactive Astrocytes And Their Role In Neurological Disease
Funder
National Health and Medical Research Council
Funding Amount
$344,652.00
Summary
I am a developmental neuroscientist interested in the way alterations to normal brain development affect neuronal function later in life. I intend to investigate this by studying astrocytes – the cells that support and nourish brain nerve cells. In some diseases these astrocytes become stressed and instead of aiding the brain, set about destroying it. A better understanding of their action during development and disease may enable improved interventions for the treatment of many brain disorders.