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Neogenin Regulates Progenitor Division And Interneuron Migration In The Developing Forebrain
Funder
National Health and Medical Research Council
Funding Amount
$526,878.00
Summary
In humans, mutations in genes controlling the production of new neurons in the embryonic brain result in severe disruption of the adult cortex. This project tests the hypothesis that one cell surface molecule, Neogenin, regulates the birth of new neurons and their subsequent travels through the developing brain to form the neocortex. The outcome of these studies will provide fundamental insights into the aberrant processes that underlie human mental retardation, epilepsy, dyslexia and autism.
Experience-dependent Maturation And Plasticity Of The Cerebral Cortex Mediating Schizophrenia-like Endophenotypes
Funder
National Health and Medical Research Council
Funding Amount
$384,199.00
Summary
We will use genetic mouse models of schizophrenia to understand how specific abnormal behaviours are caused, focusing on cells and molecules within the brain. We will investigate how the gene mutations disrupts communication between, and production of, brain cells (neurons), and the role of mental and physical activity. The results of this project will not only have implications for understanding schizophrenia, but also for other brain disorders involving cognitive problems, such as dementia.
Molecular Mechanisms Mediating Experience-dependent Cellular Plasticity And Cognitive Deficits In Huntingtons Disease
Funder
National Health and Medical Research Council
Funding Amount
$550,387.00
Summary
We will use a genetic mouse model of Huntington's disease (HD), to understand how cognitive disorders (dementia) are caused, focusing on cells and molecules within the brain. We will investigate how the HD gene mutation disrupts communication between brain cells (neurons), as well as disrupting production of new cells (via adult neural stem cells). The results of this project will not only have implications for treating HD but also for other diseases involving dementia, such as Alzheimer's.
Development And Refinement Of Neural Connections In The Adult Brain In Health And Disease
Funder
National Health and Medical Research Council
Funding Amount
$8,061,596.00
Summary
Our group will use innovative approaches such as advanced imaging and cell-sorting and development of animal models to determine how new neurons are generated, how they travel to different parts of the brain and how they integrate into the existing brain circuitry. These discoveries will point to new ways in which to treat brain damage both during ageing and during pathology. Since team members have previously been involved in progressing molecular discovery to clinical trials, we are also in a ....Our group will use innovative approaches such as advanced imaging and cell-sorting and development of animal models to determine how new neurons are generated, how they travel to different parts of the brain and how they integrate into the existing brain circuitry. These discoveries will point to new ways in which to treat brain damage both during ageing and during pathology. Since team members have previously been involved in progressing molecular discovery to clinical trials, we are also in a good position to exploit these discoveries in partnership with the biopharmaceutical industry.Read moreRead less
Epigenetic Determination Of Neuronal Vulnerability And Neurodegenerative Disease
Funder
National Health and Medical Research Council
Funding Amount
$617,857.00
Summary
Neurons are faced with diverse forms of stress everyday. Neural diseases exacerbate this stress, causing interference to genes that normally allow neurons to function correctly. As a result, neurons die, and severe loss can result in diseases such as dementia. We have discovered new molecular factors in neurons that insulate their genes from stress, thereby protecting neuron function and health. The proposed research will exploit these mechanisms to better protect neurons from disease.
Decoding Mechanisms Of Brain-intestinal Communication
Funder
National Health and Medical Research Council
Funding Amount
$640,210.00
Summary
Obesity is a worldwide concern to human health. Research into how fat is regulated in the body may provide new therapeutic options. It is not well understood how signals from the brain control fat storage. We have recently identified a gene that is important for the communication between the brain and the intestine in the control of fat levels. As such, our work will enable us to better understand this phenomenon.
Cracking The Epigenetic Code: Understanding The Mechanisms Of Memory Associated With Anxiety-related Disorders And Their Treatment
Funder
National Health and Medical Research Council
Funding Amount
$640,210.00
Summary
The primary goal of my research programme is to elucidate how the epigenome coordinates experience-dependent gene expression underlying associative learning and memory using paradigms relevant for understanding fear-related anxiety disorders. My research on DNA modifications and newly emerging findings in the realm of RNA biology is changing the way we think about gene-environment interactions, the broader impact of which will most certainly continue to be felt for years to come.
Controlling The Development And Function Of Hindbrain Commissures In Vertebrate Animals: The Role Of Robo3 Receptor
Funder
National Health and Medical Research Council
Funding Amount
$393,834.00
Summary
Commissural axons connect and coordinate activity between neurons of the left and right sides of the central nervous system. In the forebrain, formation of commissural axons is determined by guidance factors at the midline between the two hemispheres, and abnormalities in guidance can cause developmental malformations. The aims of this project are to elucidate function of the Robo/Slit family of molecules in regulating axon guidance of commissural neurons, particularly in the corpus callosum.
Factors Predisposing To Post Operative Epilepsy In Patients With Supratentorial Gliomas
Funder
National Health and Medical Research Council
Funding Amount
$66,550.00
Summary
Tumour associated epilepsy, a common, disabling problem for patients with brain tumours called gliomas is often refractory to medical treatment and the mechanisms by which gliomas cause seizures are unknown. This is the first extensive observational study looking at molecular factors within the brain such as Hyperpolarization ion channels, glutamate uptake receptors and ADAM22 genes that may help determine which patients with gliomas will develop epilepsy and which ones will not.
Detection And Manipulation Of Neuronal Activities With A Synthetic Optogenetic Activity-reporting Transcription System
Funder
National Health and Medical Research Council
Funding Amount
$391,012.00
Summary
Functional brain mapping is important for understanding mental illnesses such as depression, attention deficit hyperactivity disorders and post-traumatic stress disorders. Current techniques for functional brain mapping are limited and not suitable for large-scale studies. The proposed project will generate new tools that can be used to map activated neurocircuitry in laboratory model organisms and will enhance our ability to design effective treatments for mental illnesses.