There are escalating numbers of Alzheimer�s disease sufferers. This Project aims to provide a better understanding of the fundamental process underlying the damage to brain circuitry in this condition. This proposal may provide key information regarding the relationship between the major pathological changes of Alzheimer�s disease, identifying the cellular mechanisms that are crucial to this process, and providing new avenues for therapeutic agents targeted at the earliest stage of AD.
The Role Of BDNF In Central Nervous System Myelination
Funder
National Health and Medical Research Council
Funding Amount
$478,235.00
Summary
Multiple Sclerosis (MS) is the most common neurological cause of disability in young adult Australians. The cause of MS is unknown and therapies are limited to reducing inflammation, which does not address the major problem of the disease: loss of myelin. This project directly investigates how myelin is formed and will identify key mechanisms in this process, which may eventually be developed into treatments for diseases such as MS.
Elucidation Of The Transcriptional Control Of CNS Myelination And Remyelination
Funder
National Health and Medical Research Council
Funding Amount
$570,764.00
Summary
Oligodendrocytes are the cell type in the central nervous system that produce myelin, the insulating layer around nerve cells. Loss of oligodendrocytes and myelin are key features of multiple sclerosis. This project aims to characterize how a recently identified gene (Myelin Gene Regulatory Factor) functions to promote myelination and to assess the role of the gene in myelin maintenance and repair in the adult central nervous system.
The Role Of BMP4 Signalling In Oligodendrogenesis Following Central Demyelination
Funder
National Health and Medical Research Council
Funding Amount
$360,202.00
Summary
Multiple Sclerosis (MS) is the most common neurodegenerative disease affecting young adults. It is a disease that kills myelin cells, which are necessary support cells for neurons and are critical for their function. This research investigates the role that BMPs play in myelin cell production and repair. Our aim is to identify regenerative therapeutics for MS.
Cloning And Characterisation Of A Novel Developmental Gene Involved In Myelination.
Funder
National Health and Medical Research Council
Funding Amount
$150,880.00
Summary
This project aims to identify and characterise a novel human gene involved in the formation of different organs and tissues, with an essential role in nervous system development. One of the most interesting facts of life, emerging from the completion of the Human Genome Project, is that it is not the number of genes but rather their regulation that plays the major role in evolution and determines the differences between species. The development of a human being from conception to birth is among ....This project aims to identify and characterise a novel human gene involved in the formation of different organs and tissues, with an essential role in nervous system development. One of the most interesting facts of life, emerging from the completion of the Human Genome Project, is that it is not the number of genes but rather their regulation that plays the major role in evolution and determines the differences between species. The development of a human being from conception to birth is among the most complex processes, where fine regulation of the timing and site of gene expression is crucial. We have recently identified a novel disorder where a mutation in a single gene disrupts the development and function of the eyes, the skull, the nervous, and the endocrine systems. The most disabling manifestations of the disease result from involvement of the peripheral nervous system. This is due to the failure of affected individuals to produce myelin, the insulating material that enwraps nerve fibres and facilitates the rapid conduction of nerve impulses. The mutated gene, which the project aims to identify, is likely to be involved in regulating the expression of multiple other genes essential for the early stages of myelination, as well as for the development of other tissues. The disease gene has been localised to a small interval on the long arm of chromosome 18, which does not contain any known developmental genes, suggesting that the project will provide novel information on the molecular pathways governing normal human development. As a result, the study may have important implications for understanding the general pathogenesis of disorders of the peripheral nervous system, including its common forms which affect thousand of people worldwide.Read moreRead less
Roles Of Brain-derived Neurotrophic Factor In Plasticity Of Injured Sensory Neurons
Funder
National Health and Medical Research Council
Funding Amount
$461,443.00
Summary
The fundamental problem of how nerve cells respond to a nerve injury has long been studied by neuroscientists and clinicians. After a nerve injury outside the brain or spinal cord, ie, in the periphery, some sensory nerve cells die, some regenerate to reconnect to their targets, and some sprout to make abnormal connections. Recent evidence from our lab and others indicates that the nerve sprouting is linked to chronic pain experienced by nerve-injury patients. However, how these changes occur st ....The fundamental problem of how nerve cells respond to a nerve injury has long been studied by neuroscientists and clinicians. After a nerve injury outside the brain or spinal cord, ie, in the periphery, some sensory nerve cells die, some regenerate to reconnect to their targets, and some sprout to make abnormal connections. Recent evidence from our lab and others indicates that the nerve sprouting is linked to chronic pain experienced by nerve-injury patients. However, how these changes occur still remains largely unknown. Our recent studies showed that growth factors, particularly brain-derived neurotrophic factor (BDNF) which is made by the sensory nerve cells, may play important roles in mediating these changes. This proposed project, directly evolved from our recent exciting findings, aims to further examine roles and action mechanisms of BDNF and its relatives in regulating the responses of sensory nerve cells to a nerve injury. We propose that after an injury, BDNF promotes survival of some nerve cells, enhances sensory nerve regeneration in both periphery and spinal cord, and also mediates abnormal nerve sprouting and is involved in neuropathic pain. With strong expertise and powerful tools in hand, we have designed a series of experiments to investigate the roles and action mechanisms of BDNF and its related molecules in these processes. Results from this project will help us understand mechanisms underlying the responses of nerve cells to a nerve injury, and should provide much needed information which would help in designing new methods for enhancing nerve cell survival and nerve regeneration as well as for inhibiting nerve injury-induced chronic pain in nerve-injury patients.Read moreRead less