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Adult Stem Cell Transplantation Therapy In Parkinsonian Rat
Funder
National Health and Medical Research Council
Funding Amount
$526,517.00
Summary
Parkinson's disease is a progressive neurodegenerative disorder characterised by slowness of movement, muscle rigidity and tremor. It affects about 1% of the population at age 50 and 10% over age 80. Symptoms are caused by low levels of dopamine, a chemical in the brain that helps control movement. The symptoms increase in severity with time, leading to increasing difficulty in walking, speaking, writing, swallowing and sleeping and increasing the incidence of broken bones from falls. Parkinson' ....Parkinson's disease is a progressive neurodegenerative disorder characterised by slowness of movement, muscle rigidity and tremor. It affects about 1% of the population at age 50 and 10% over age 80. Symptoms are caused by low levels of dopamine, a chemical in the brain that helps control movement. The symptoms increase in severity with time, leading to increasing difficulty in walking, speaking, writing, swallowing and sleeping and increasing the incidence of broken bones from falls. Parkinson's disease is incurable but the symptoms can be controlled with medications that replace the lost dopamine. Medications become less effective as the disease progresses and there is need for new therapies. Worldwide the hunt is on to discover new cell transplantation therapies to replace the dopamine in the brain and to prevent degeneration of the still surviving dopamine cells. Although embryonic stem cells might be useful for such therapies, they raise the risk of tumour formation from the transplanted cells. This aim of this proposal is to test, in parkinsonian rat, a therapy in which adult stem cells from the patient are transplanted into their own brain to provide a new source of dopamine. We have discovered a new and unique source of adult stem cells, the sense organ of smell in the nose. Small samples can be taken through the nose and we can grow these adult stem cells from people of all ages, including people with Parkinson's disease. As adult stem cells they avoid the ethical issues associated with embryonic stem cell transplantation and as cells from the same patient, they are not rejected by the immune system. This is being tested in principle by a world-first clinical trial in which we are taking another cell type from the nose, growing it in the lab, and transplanting into the injured spinal cord in a search for a cure for paraplegia. This project takes the first steps to developing a new treatment for Parkinson's disease using a patient's own adult stem cells.Read moreRead less
Dementias affect a large number of Australians each year with the number of patients expected to triple by 2050. As such, there is need to develop a better model of this debilitating disorder to provide improved treatments. Mesenchymal stem cells, are relatively easy to obtain and grow, and are able to produce the key cell types in the brain. We can use these cells to identify the processes that control the production of brain cells, which will likely provide better treatment of this disease.
Identification Of Novel Regulatory Factors In Midbrain Development To Improve Cell Therapies For The Treatment Of Parkinson’s Disease
Funder
National Health and Medical Research Council
Funding Amount
$311,860.00
Summary
Cell transplantation is one of the most promising therapeutic strategies for the treatment of Parkinson’s disease. Cells are transplanted directly into the brain of the patient and can compensate for those lost to the disease. In this project we are identifying new genes that regulate the normal development of the transplanted cells in mice. We hope to use this knowledge to improve the reliability and effectiveness of the approach, bringing the therapy closer to the clinic.
MIGRATORY CHARACTERISTICS OF SKIN-DERIVED NEURAL PRECURSORS AS A NOVEL REGENERATIVE THERAPY FOR ALZHEIMER’S DISEASE
Funder
National Health and Medical Research Council
Funding Amount
$46,945.00
Summary
Memory decline in Alzheimer's disease is linked to a massive loss of neurons and the connections between these cells. Stem cell therapy has the potential to combat this neuronal loss by replenishing the brain with healthy functional neurons. This study aims to develop a new type of neural stem-like cell, termed skin-derived neural precursors, which can be isolated from a patient’s own skin. The outcomes from this work will provide the necessary data for progress into human clinical trial.
Defining Role Of Inflammatory Signals In Enhancing Motoneuron Regeneration
Funder
National Health and Medical Research Council
Funding Amount
$546,688.00
Summary
Spinal cord injury is a devastating event that has a life-long impact on the patient’s life with wide-reaching social and economic effects. In this proposal we examine how inflammatory signals boost neuronal regeneration after injury. Furthermore, we define how new neurons are able to integrate into existing spinal circuitry. Out work provides critical insight and hold keys to unlocking strategies for future restorative therapies in the brain or spinal cord.
Manipulation Of Enteric Neural Stem Cells For Cell Therapy To Treat Enteric Neuropathies
Funder
National Health and Medical Research Council
Funding Amount
$611,438.00
Summary
Cell therapy offers great promise for the treatment of motility disorders due to defects in the nerve cells in the bowel. Patient-derived cells are likely to be the best source of cells, however, patient-derived cells will require manipulation because they are likely to be defective. We will identify manipulations of stem/progenitor cells that increase their efficacy for cell transplantation.
Function Of The Lysophospholipid Receptor Family In Neuronal Stem Cells And Their Progenitors.
Funder
National Health and Medical Research Council
Funding Amount
$380,723.00
Summary
Stem cells have the potential to give rise to a vast array of differentiated cells. Neuronal stem cells (NSC) can differentiate into progenitor cells which can themselves differentiate into cells of the nervous system: neurons and macroglial cells (astrocytes, oligodendrocytes, Schwann cells). This in turn can assist in the treatment of degenerative diseases such as multiple sclerosis, Parkinson's disease, motoneuron desease etc. Our project aims to study the effects on NSC and their progenitor ....Stem cells have the potential to give rise to a vast array of differentiated cells. Neuronal stem cells (NSC) can differentiate into progenitor cells which can themselves differentiate into cells of the nervous system: neurons and macroglial cells (astrocytes, oligodendrocytes, Schwann cells). This in turn can assist in the treatment of degenerative diseases such as multiple sclerosis, Parkinson's disease, motoneuron desease etc. Our project aims to study the effects on NSC and their progenitor cells of the lysophospholipids lysophosphatidic acid (LPA) and sphingosine-1-phosphate (S1P), bioactive molecules known to play an essential role in the nervous system during development and inflammation. Our project aims to understand the mechanisms of action of these molecules in NSC maintenance, proliferation, differentiation and migration. By understanding how these molecules are able to regulate NSC biology will provide new avenues in the development of tools necessary for stem cell therapy.Read moreRead less
Enhancement Of Newborn Neuron Survival To Promote Repair Following Adult Brain Injury
Funder
National Health and Medical Research Council
Funding Amount
$555,780.00
Summary
Following brain damage tissue needs to be rebuilt and newborn nerve cells need to survive. Identification of factors that enhance the numbers and promote the survival and appropriate integration of newborn nerve cells is therefore important and over the last few years we have identified two regulatory factors that are prime candidates to enhance numbers and survival of newborn neurons following injury: the Rho pathway and suppressor of cytokine signalling-2, which we will test for effectiveness ....Following brain damage tissue needs to be rebuilt and newborn nerve cells need to survive. Identification of factors that enhance the numbers and promote the survival and appropriate integration of newborn nerve cells is therefore important and over the last few years we have identified two regulatory factors that are prime candidates to enhance numbers and survival of newborn neurons following injury: the Rho pathway and suppressor of cytokine signalling-2, which we will test for effectiveness following brain injury.Read moreRead less
Neogenin: A Regulator Of Neuronal Differentiation And Migration In The Adult Brain
Funder
National Health and Medical Research Council
Funding Amount
$334,053.00
Summary
Conditions such as Alzheimer�s and Huntington�s diseases, as well as stroke, represent a major burden of disease in Australia. One goal of modern neurobiology is to harness the brain's ability to make new neurons so that we can replace those damaged by disease or injury. We will investigate how an important developmental molecule, Neogenin, promotes the production of new neurons in the adult brain. A second goal is to show that Neogenin can be activated to promote the repair of the damaged brain ....Conditions such as Alzheimer�s and Huntington�s diseases, as well as stroke, represent a major burden of disease in Australia. One goal of modern neurobiology is to harness the brain's ability to make new neurons so that we can replace those damaged by disease or injury. We will investigate how an important developmental molecule, Neogenin, promotes the production of new neurons in the adult brain. A second goal is to show that Neogenin can be activated to promote the repair of the damaged brain.Read moreRead less
Neural Crest Stem Cell Therapy For Absence Of Intestinal Nerves In Hirschsprungs Disease
Funder
National Health and Medical Research Council
Funding Amount
$504,377.00
Summary
Hirschsprung's disease is acommon birth defect caused by failure of nerve cells to get into the colon. This results in intractable often fatal constipation. Current treatment is surgical removal of the affected colon soon after birth but often problems persist. These nerves might be rebuilt using nerve stem cells, but not all stem cells have this capacity. And is not known if this can be achieved after birth: This project will define which stem cell populations to use and in what age of bowel.