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Identification And Characterisation Of A Novel Parkinson's Disease Gene
Funder
National Health and Medical Research Council
Funding Amount
$556,313.00
Summary
Parkinson’s disease (PD) is a complex neurological condition affecting 100,000 Australians. The primary clinical features of PD result from the selective loss of a specific type of neuron. These neurons make up less than 1% of the over 50 million neurons within the brain, and it is currently unclear why they are preferentially lost during disease development. We have identified a novel gene that causes early onset parkinsonism. This study will characterise the gene and determine what role it pla ....Parkinson’s disease (PD) is a complex neurological condition affecting 100,000 Australians. The primary clinical features of PD result from the selective loss of a specific type of neuron. These neurons make up less than 1% of the over 50 million neurons within the brain, and it is currently unclear why they are preferentially lost during disease development. We have identified a novel gene that causes early onset parkinsonism. This study will characterise the gene and determine what role it plays in the development of PD.Read moreRead less
Determining The Role Of Parkin And PACRG In Protein Turnover
Funder
National Health and Medical Research Council
Funding Amount
$555,780.00
Summary
Alterations in the parkin gene are associated with neurodegenerative disorders such as Parkinson's disease (PD). The aim of this proposal is to characterise the function of parkin and the role it plays in disease development. We will determine the role of parkin in the brain and how loss of this function causes specific nerve cells to die. These studies will provide the means to develop novel therapeutic approaches to alleviate or prevent these disorders.
Central Muscarinic Receptors as Novel Drug Targets for Parkinson's Disease and Schizophrenia. Psychiatric and neurodegenerative disorders such as schizophrenia and Parkinson's disease are linked to alterations in the activity of neurons in the brain containing the chemical dopamine. Other types of brain neurons containing the chemical acetylcholine regulate dopamine neuron activity by acting on acetylcholine receptors located on dopamine neurons. We aim to determine how these important recepto ....Central Muscarinic Receptors as Novel Drug Targets for Parkinson's Disease and Schizophrenia. Psychiatric and neurodegenerative disorders such as schizophrenia and Parkinson's disease are linked to alterations in the activity of neurons in the brain containing the chemical dopamine. Other types of brain neurons containing the chemical acetylcholine regulate dopamine neuron activity by acting on acetylcholine receptors located on dopamine neurons. We aim to determine how these important receptors regulate dopamine neuron activity using genetically modified mice deficient in acetylcholine receptors, together with newly developed physiological methods and new acetylcholine receptor drugs. These studies will foster the design of novel acetylcholine receptor drugs as effective pharmaceutical treatments of neurological and psychiatric disorders related to brain dopamine dysfunction.Read moreRead less
Muscarinic Receptor Regulation of Dopamine Reward Pathways in the Brain. Human disorders such as schizophrenia and drug addiction are linked to alterations in the activity of neurons in the brain containing the chemical dopamine. Other types of brain neurons containing the chemical acetylcholine regulate the activity of dopamine neurons by acting on acetylcholine receptors located on dopamine neurons. We aim to examine how dopamine neuron activity is regulated by these receptors using newly de ....Muscarinic Receptor Regulation of Dopamine Reward Pathways in the Brain. Human disorders such as schizophrenia and drug addiction are linked to alterations in the activity of neurons in the brain containing the chemical dopamine. Other types of brain neurons containing the chemical acetylcholine regulate the activity of dopamine neurons by acting on acetylcholine receptors located on dopamine neurons. We aim to examine how dopamine neuron activity is regulated by these receptors using newly developed physiological methods together with a new acetylcholine receptor drug. We also aim to assess the suitability of mice genetically modified to be deficient in acetylcholine receptors as animal models of dopamine dysfunction related to schizophrenia and drug addiction.Read moreRead less
Genetic And Functional Analysis Of Brain Malformations
Funder
National Health and Medical Research Council
Funding Amount
$105,327.00
Summary
Disorders of early brain development are recognised as a significant cause of illness and disability in children. Unfortunately, the causes of these conditions are poorly understood, and treatment options are limited. It has become apparent that many of these conditions have an underlying genetic basis. This project will identify genes that regulate brain development and aid the development of improved treatment programs for brain and mind disorders.
TorsinA Mediated Dystonia, Functional Analysis And Molecular Models
Funder
National Health and Medical Research Council
Funding Amount
$479,817.00
Summary
The dystonias represent a group of movement disorders characterised by sustained muscle contraction, resulting in twisting and abnormal postures. Current treatment regimes may provide some measure of symptomatic relief, but are often unsatisfactory and limited by adverse side effects. The prevalence of dystonia is estimated at approximately 300 cases per million population. Dystonia is a complex disorder, the causes and disease mechanisms are not well understood. However, in the past 10 years se ....The dystonias represent a group of movement disorders characterised by sustained muscle contraction, resulting in twisting and abnormal postures. Current treatment regimes may provide some measure of symptomatic relief, but are often unsatisfactory and limited by adverse side effects. The prevalence of dystonia is estimated at approximately 300 cases per million population. Dystonia is a complex disorder, the causes and disease mechanisms are not well understood. However, in the past 10 years several genes have been identified that can cause dystonia. The overall aim of this proposal is to characterise a gene that causes dystonia when disrupted. Understanding the function of this gene may significantly advance our understanding of this disorder. Using these results, we aim to model dystonia in cellular and animal systems; these may provide powerful insight into the molecular pathway(s) perturbed in dystonia and a means to develop novel therapeutic approaches to alleviate or prevent the disorder.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0882701
Funder
Australian Research Council
Funding Amount
$300,000.00
Summary
Establishment of a confocal/multiphoton microscope for imaging of living systems. This facility will allow us to study the dynamic changes in living systems, from the smallest unicellular organisms in the ocean through to the sophisticated neural networks of the living brain. Not only will this imaging facility allow us to understand how living systems work, we will also be able to explore the dynamic changes that underlie human disease and injury.
Delineating the functional role of the amyloid precursor protein's copper binding domain. This study will define how the interaction between copper and the amyloid precursor protein (APP) molecule regulates copper homeostasis and APP metabolism. Since copper homeostasis is tightly regulated and vital for normal cellular function, understanding the regulation copper homeostasis is important for basic biology. Moreover, APP is directly involved in causing Alzheimer's disease and therefore underst ....Delineating the functional role of the amyloid precursor protein's copper binding domain. This study will define how the interaction between copper and the amyloid precursor protein (APP) molecule regulates copper homeostasis and APP metabolism. Since copper homeostasis is tightly regulated and vital for normal cellular function, understanding the regulation copper homeostasis is important for basic biology. Moreover, APP is directly involved in causing Alzheimer's disease and therefore understanding the interaction between APP and copper has potential benefits for community health by combating aging and Alzheimer's disease.Read moreRead less
Cracking the LIM-code: Transcription factor networks in developmental biology. Our current inability to stimulate the regeneration of nervous tissue is frustrated by a lack of detailed knowledge of the complex processes that take place at the molecular and cellular levels during development. We are determining how a group of cellular proteins that have key roles in neural development interact with each other and with DNA. With this information we are developing reagents that can be used to probe ....Cracking the LIM-code: Transcription factor networks in developmental biology. Our current inability to stimulate the regeneration of nervous tissue is frustrated by a lack of detailed knowledge of the complex processes that take place at the molecular and cellular levels during development. We are determining how a group of cellular proteins that have key roles in neural development interact with each other and with DNA. With this information we are developing reagents that can be used to probe the fundamental process of cell differentiation in the central nervous system.Read moreRead less
Glycerotoxin, a unique tool to investigate the dynamic interactions between N-type Ca2+ channels and the exo-endocytic machinery. Communication between neurons relies on exocytosis, a process in which synaptic vesicles containing a neurotransmitter release their content in the extracellular synaptic cleft. We have recently discovered a unique neurotoxin called glycerotoxin (GLTx), which selectively activates Ca2+ channels (Cav2.2), linked with the exocytic machinery in the Central Nervous System ....Glycerotoxin, a unique tool to investigate the dynamic interactions between N-type Ca2+ channels and the exo-endocytic machinery. Communication between neurons relies on exocytosis, a process in which synaptic vesicles containing a neurotransmitter release their content in the extracellular synaptic cleft. We have recently discovered a unique neurotoxin called glycerotoxin (GLTx), which selectively activates Ca2+ channels (Cav2.2), linked with the exocytic machinery in the Central Nervous System. GLTx provide a new tool to further dissect the role of Cav2.2 in controlling neurotransmitter release. GLTx also greatly facilitates synaptic vesicle recycling, suggesting an unexpected link between Cav2.2 activation and the compensatory endocytic machinery. Our goal is to investigate functional coupling between Cav2.2 and the exo- and endocytic machineries using GLTx.Read moreRead less