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EphA2 And EphA3 Maintain Tumour Initiating Cells And Are Therapeutic Targets In Brain Cancer
Funder
National Health and Medical Research Council
Funding Amount
$612,860.00
Summary
High-grade glioma (HGG) is the most common adult brain cancer; current treatments have increased survival times by months only. Our studies have shown brain cancer specific expression of a family of cell surface proteins called Eph receptors. Furthermore we have shown targeting these receptors with Eph antibodies leads to a significant reduction in brain cancer tumour growth. We now propose to test targeting these receptors in combination to achieve greater responses with minimal side effects.
Antibody-based Inhibition Of ADAM10 As Cancer Immunotherapy
Funder
National Health and Medical Research Council
Funding Amount
$652,788.00
Summary
Despite our advances in understanding the molecular basis of cancer, treatments for metastatic cancers are limited, emphasising an urgent need for strategies targeting several oncogenic pathways. We generated monoclonal antibodies effectively blocking the activity of ADAM10, an oncogenic cell surface protease that activates tumour growth, invasion and metastasis through multiple pathways. Here we describe the strategies that progress these antibodies as lead therapeutics for clinical testing.
Therapeutic Potential Of Inhibiting Eph/ephrin Signalling To Repair The Vascular Endothelium In Septic Shock
Funder
National Health and Medical Research Council
Funding Amount
$664,734.00
Summary
Septic shock is a life-threatening condition usually caused by bacterial infection in the bloodstream. More than 5000 people, including 500 children, die from sepsis each year in Australia. Worldwide, it is the most significant cause of death in children. Sepsis is associated with leakage of fluid and proteins through the cells lining the blood vessels. This project will develop and test a novel treatment for sepsis which focuses on reducing this leakage by blocking the Eph/ephrin proteins.
EphA3, A Novel Target For Leukaemia Stem Cell Therapy
Funder
National Health and Medical Research Council
Funding Amount
$616,992.00
Summary
Patients with acute myeloid leukaemia often respond to therapy, but many relapse due to “leukemic stem cells” (LSC), the few cells in the original leukaemia which survive therapy. We focus on a protein (EphA3) which sits on LSCs and helps them interact with their environment. Disrupting this interaction may make these cells vulnerable to therapy. We aim to determine the function of EphA3 on LSCs and optimise the therapeutic use of an antibody against EphA3 which is currently in clinical trial.
EphA3 Is A Marker Of Glioma Stem/progenitor Cells And A Potential Target For Therapy.
Funder
National Health and Medical Research Council
Funding Amount
$585,860.00
Summary
EphA3 is a cell surface marker which is enriched on glioma ‘propagating’ stem cells (GSCs) and furthermore has a functional role in regulating GSC differentiation and fate determination. EphA3 therefore provides a novel therapeutic target for high-grade glioma.
Inhibiting Tumour Growth By Targeting EphA3 And Disrupting Tumour Stromal And Vascular Microenvironment
Funder
National Health and Medical Research Council
Funding Amount
$645,136.00
Summary
Tumours consist of cancer cells, tumour blood vessels and connective tissue, all of which are different to normal tissues. Many of the cells making up tumour vessels and connective tissue are recruited, during initial growth and subsequent spreading of tumours, from the bone marrow. Our research will examine the presence and function of the EphA3 receptor on these cells during tumour development and assess how our anti-EphA3 antibody inhibits tumour growth by targeting stroma and vasculature.
A Breakdown Of Cortical Homeostasis In Depression: A Focus On The Anterior Cingulate
Funder
National Health and Medical Research Council
Funding Amount
$625,629.00
Summary
Major depressive disorders affect 20% of the Australian population. Some symptoms of major depressive disorders arise because of a dysfunction of the human brain, particularly the cortex. Our studies show there are biochemical changes in the anterior cingulate cortex in people with mood disorders. We will now extend our studies to show there is a breakdown in the balance between neurotransmitter and neuroinflammation pathways in the anterior cingulate cortex in major depressive disorders.
Rational Co-targeting Of G Protein-coupled Receptors As A Novel Approach Towards Treating Neuropsychiatric Disorders
Funder
National Health and Medical Research Council
Funding Amount
$620,399.00
Summary
Schizophrenia is a common mental disorder with multiple symptoms. Current therapeutics only treat some of these symptoms. This project will focus on two important brain proteins implicated in schizophrenia. With the hypothesis that the rational targeting of these two proteins will lead to the design of more effective medicines for treatment of schizophrenia we will develop novel methods to selectively and simultaneously and target these two proteins.
Investigating The Impact Of Coincident Modulation Of Adenosine And Glutamate Receptors On Neuronal Activity – Implications For CNS Drug Discovery
Funder
National Health and Medical Research Council
Funding Amount
$648,447.00
Summary
Dementia in particular Alzheimer's disease, is one of the leading causes of death. There remains a need for new drugs to treat both symptoms and disease progression. Two receptors in the brain, the adenosine A1 (A1AR) and metabotropic glutamate 5 (mGlu5) are suggested to be promising new drug targets for dementia. In order to better develop drugs that target these receptors, we will develop a better understanding of activity of these receptors under conditions of health and disease.
Understanding Novel Drug Binding Pockets At G Protein-coupled Receptors
Funder
National Health and Medical Research Council
Funding Amount
$425,538.00
Summary
Cell-surface proteins exhibit multiple secondary binding sites for which only synthetic drugs have been identified so far. My hypothesis is that these secondary binding sites are common to most proteins because they are primarily targeted by largely yet unidentified endogenously released molecules that can modify the biology of these proteins.