Treatment Of Genetic Liver Disease By Homologous Recombination In Vivo, Coupled With A Pharmoco-genetic Strategy For Selective Expansion Of Genetically Repaired Hepatocytes
Funder
National Health and Medical Research Council
Funding Amount
$920,836.00
Summary
This project seeks to exploit recent advancements in our ability to precisely “edit” and correct mutations underlying human genetic diseases. To improve therapeutic efficiencies of the system, we will deliver the technology using highly efficient virus-based systems and apply a novel post-repair selection process to preferentially repopulate the liver with gene-repaired cells. Demonstration of the strategy in a humanised mouse model will provide important preclinical data for human applications.
Targeting CD4-positive Cells For Anti-HIV Gene Therapy
Funder
National Health and Medical Research Council
Funding Amount
$356,646.00
Summary
Treatment of HIV early following infection is thought to be important for maximising the quality of life of patients. Conventional therapy has had some success in early intervention but resistance invariably develops. This application proposes to develop a gene therapy approach to elimiate HIV infected cells by introducing a suicide gene into those cells that harbor the virus. The advantage of this approach is the limited toxicity that is associated with gene therapies as well as the ability to ....Treatment of HIV early following infection is thought to be important for maximising the quality of life of patients. Conventional therapy has had some success in early intervention but resistance invariably develops. This application proposes to develop a gene therapy approach to elimiate HIV infected cells by introducing a suicide gene into those cells that harbor the virus. The advantage of this approach is the limited toxicity that is associated with gene therapies as well as the ability to target specific cell-types. It is proposed to genetically modify a strain of adenovirus to introduce a gene that will kill cells that it infects that also contain HIV. This is a novel approach and potentially may be an important treatment in the future. Anti-HIV gene therapy may also be useful in addition to the more conventional treatments.Read moreRead less
Site-specific Integration Of Functional Genomic Loci: Applications In Gene Therapy
Funder
National Health and Medical Research Council
Funding Amount
$442,664.00
Summary
Gene therapy strategies have traditionally focused on the delivery of therapeutic genes by viral vectors. Mindful of the limitations and potential problems of viral gene delivery, non-specific viral integration and limited transgene expression, this investigation will explore the delivery and site-specific integration of large genomic fragments into human stem cells. It is anticipated this approach will avoid some of the problems associated with poor gene expression and insertional oncogenesis.
Reconstitution Of B-cell Ontogeny In Btk-deficient Patient-derived CD34+ Cells In A Humanised Mouse Model: The Foundations For An Australian XLA Gene Therapy Trial
Funder
National Health and Medical Research Council
Funding Amount
$678,652.00
Summary
Gene therapy targeting the bone marrow has broad therapeutic potential in the management of genetic diseases, viral infections and cancers involving blood cells. In this proposal we plan to obtain bone marrow cells from patients with X-linked agammaglobulinaemia and show that their cells can be genetically repaired in the test tube and, when transferred back into a specialised mouse models, reconstitute the immune system. The results have the potential to underpin a human clinical trial.
Minimally-invasive Gene Delivery Of A Novel Inhibitor Of Retinal Angiogenesis
Funder
National Health and Medical Research Council
Funding Amount
$883,883.00
Summary
Excessive growth of blood vessels in the eye causes vision loss and can only be treated with lasers or painful and frequent injections into the eye. Vasostatin is a specific inhibitor of angiogenesis and a promising agent for the management of ocular neovascularisation. We will provide pre-clinical evidence that gene delivery of vasostatin-like peptides is an effective therapeutic strategy and it has potential to revolutionize the current ophthalmic care of age-related macular degeneration.
Enhanced And Highly Specific Delivery Of Small Interfering RNA And Oligonucleotides As Therapeutics For Gene Silencing
Funder
National Health and Medical Research Council
Funding Amount
$311,860.00
Summary
This proposal aims to develop glyco-nanocarriers for the efficient and specific delivery of siRNA/oligonucleotides to treat liver diseases. Complex glycopolymer architectures developed here will protect desired genes from enzymatic degradation and will deliver the gene to the liver specifically for therapy, hence providing a solution towards nucleic acid therapy.
The Use Of Gene-Silencing Nanodrugs To Inhibit Lung Cancer Growth
Funder
National Health and Medical Research Council
Funding Amount
$452,950.00
Summary
Lung cancer accounts for the most cancer deaths worldwide. This research proposal will use state-of-the-art nanomedicines designed to penetrate lung tumours and suppress a gene which drives cancer growth and resistance to chemotherapy drugs. Our results could underpin new approaches that revolutionise more effective and less toxic treatments for a highly lethal malignancy.
Functional Restoration Of OTC Deficient Primary Human Hepatocytes In A Xenograft Model Using An AAV Vector Uniquely Configured For Impending Clinical Trial Use.
Funder
National Health and Medical Research Council
Funding Amount
$235,525.00
Summary
The aim of this project is to acquire preclinical data which will underpin an international gene therapy trial for severe ornithine transcarbamylase (OTC) deficiency, the most prevalent urea cycle defect in infants and children. In most severe cases, liver transplantation is required for long term survival. We, with colleagues at Stanford University, have recently developed a novel gene therapy tool for optimal targeting of human liver cells which will be tested in a humanised mouse model.
Development Of A Novel Hybrid RAAV/transposon Gene Delivery System For Life-long Correction Of Metabolic Liver Disease In Infants And Children
Funder
National Health and Medical Research Council
Funding Amount
$505,897.00
Summary
The immense potential of gene therapy for the treatment of genetic liver disease has been confirmed by recent success in a clinical trial for Haemophilia in adult males, and therapeutic benefit in other adult trials is imminent using the same technology. In the young, however, ongoing growth of the liver causes the therapeutic benefit to be short-lived. To address this problem we are developing a powerful new hybrid technology capable of conferring life-long benefit on infants and children.