Developing Anti-Inflammatory Drugs Based On Inhibition Of A Human Enzyme
Funder
National Health and Medical Research Council
Funding Amount
$160,000.00
Summary
Human secretory phospholipases A2 have been associated with inflammatory diseases for many years, yet very few truly potent inhibitors of the human enzymes sPLA2 (isoforms IIa, V or X) are known due to a range of problems relating to the lipid nature of substrates, unavailability of enzymes, enzyme assays that do not correlate with in vivo data. Although there remains controversy about which enzyme is responsible in vivo for degrading membrane phospholipids to inflammatory mediators like arachid ....Human secretory phospholipases A2 have been associated with inflammatory diseases for many years, yet very few truly potent inhibitors of the human enzymes sPLA2 (isoforms IIa, V or X) are known due to a range of problems relating to the lipid nature of substrates, unavailability of enzymes, enzyme assays that do not correlate with in vivo data. Although there remains controversy about which enzyme is responsible in vivo for degrading membrane phospholipids to inflammatory mediators like arachidonate, PAF, prostaglandins, leukotrienes, etc. there is a consensus that blockade of phospholipid metabolism would represent a major advance on NSAIDs as antiinflammatory agents. No sPLA2-IIa inhibitor is available yet in man. We aim to create an attractive data package showing proof of concept for a potent new type of antiinflammatory drug. This data will give us an improved negotiating position in our commercialisation of a new drug with potential multi-billion dollar markets as diverse as arthritis, asthma, reperfusion injury, organ transplantation and many other currently intractable human ailmentsRead moreRead less
Development Of Chimeric Hepatitis B Virus Like Particles As A Vaccine Delivery Platform For Multiple HIV-1 Epitopes
Funder
National Health and Medical Research Council
Funding Amount
$139,500.00
Summary
The small envelope protein of hepatitis B virus (HBsAg) can self-assemble into highly organised viruslike particles with about 150 HBsAg-proteins forming a virus-like particle (VLP). VLPs induce an effective immune response, mainly against the exposed major antigenic site, the hydrophilic ‘a’- determinant region. To create a novel HBsAg-specific vaccine vector, foreign epitopes were inserted into the major antigenic site allowing surface orientation of the inserted sequence. Pilot studies involv ....The small envelope protein of hepatitis B virus (HBsAg) can self-assemble into highly organised viruslike particles with about 150 HBsAg-proteins forming a virus-like particle (VLP). VLPs induce an effective immune response, mainly against the exposed major antigenic site, the hydrophilic ‘a’- determinant region. To create a novel HBsAg-specific vaccine vector, foreign epitopes were inserted into the major antigenic site allowing surface orientation of the inserted sequence. Pilot studies involving the vaccination of mice with VLPs containing an epitope derived from the AIDS-virus (human immunodeficiency virus 1, HIV-1) or various hepatitis C virus-specific epitopes resulted in high titre antibody responses. This project aims for the development of a multi-component vaccine targeting a non-structural HIV-1 protein and therefore, avoiding the selective pressure directed against the structural proteins. The non-structural HIV-1 tat-protein is a multi-functional protein with an extracellular mode to sensitise uninfected cells for HIV-1 infection and to reactivate HIV-1 from quiescently infected cells. The use of eight tat-sequences is sufficient to provide coverage against 99% of HIV-1 sequences. We will develop hybrid particles that are composed of different sets of chimeric HBsAg proteins each containing a distinct tat-epitope. With this application, we aim to develop hybrid particles for the delivery of the complete set of tat-epitopes. The hybrid particles will be used for vaccination studies in mice, and the antibodies assessed by an in-vitro assay. This will lead to the development of a therapeutic and-or prophylactic HIV-1 vaccine, which could be used either for mass immunisation or in support of combination drug therapy and would have all the cost and production advantages of the widely used hepatitis B vaccine.Read moreRead less
Development Of Novel Anti-epileptic Drugs Targeting Vesicular Endocytosis
Funder
National Health and Medical Research Council
Funding Amount
$202,950.00
Summary
Our team developed a drug program targeting a novel mechanism for epilepsy treatment, neuronal synaptic vesicle endocytosis. This project will develop the most promising series of drugs. Preclinical development is advanced, lacking only efficacy data across models predictive of the spectrum of human epilepsies to enable candidate selection for clinical trials. The program will advance a totally new concept for the treatment of epilepsy.
There is an unmet need for safe and effective anti-inflammatory drugs. Because P38 MAPK intracellular signalling modulates multiple pro-inflammatory cytokine actions, it appears to be an ideal candidate pathway. P38 inhibitors have been limited by their toxicity within hepatocytes. The aim of this program therefore is to develop agents with enhanced P38 MAPK inhibitory effects as well as reduced liver toxicity based on known structure activity relationships.
Development And Biological Evaluation Of Cytokine Macrophage-migration Inhibitor (MIF) Non-Steroidal Antagonists
Funder
National Health and Medical Research Council
Funding Amount
$85,000.00
Summary
The cytokine macrophage-migration inhibitory factor (MIF) has a broad range of pro-inflammatory effects in the innate and adaptive immune system. CIA’s lab has demonstrated the potential importance of MIF in the pathology of chronic inflammation via studies in models of rheumatoid arthritis (RA). Similarly to other chronic inflammatory diseases, MIF is overexpressed in human RA, and induces activation of key pathological processes in RA cells. Moreover, antagonism of MIF with mAb profoundly inhi ....The cytokine macrophage-migration inhibitory factor (MIF) has a broad range of pro-inflammatory effects in the innate and adaptive immune system. CIA’s lab has demonstrated the potential importance of MIF in the pathology of chronic inflammation via studies in models of rheumatoid arthritis (RA). Similarly to other chronic inflammatory diseases, MIF is overexpressed in human RA, and induces activation of key pathological processes in RA cells. Moreover, antagonism of MIF with mAb profoundly inhibits models of RA and other inflammatory diseases, confirming MIF as a therapeutic target in human inflammatory disease. The X-ray crystal structure of MIF has been published and the putative active site fully characterised. We have deduced structural features of MIF that reveal aspects of the structural complementarity of host-guest affinity. This information has been used in the synthesis of new compounds to antagonise MIF. We have designed, synthesised and tested several classes of compounds, which have shown activity from milli to nano-molar levels in novel in-house in vitro bioassays.Read moreRead less
Development Of A Highly Potent, Fully Human Anti-GM-CSF Monoclonal Antibody
Funder
National Health and Medical Research Council
Funding Amount
$334,000.00
Summary
Many diseases, such as arthritis, have unwanted inflammatory reactions. Better drugs are needed to control inflammation. A powerful antibody to a significant pro-inflammatory cytokine will be generated; this antibody will be especially designed so that it will not be rejected by patients. Because of its properties it will cost the community less than similar therapeutics. Because inflammatory diseases are common many patients will benefit from our therapeutic.
Development Of An Anti-GM-CSF Antibody For Treatment Of Rheumatoid Arthritis
Funder
National Health and Medical Research Council
Funding Amount
$283,000.00
Summary
The aim of this project is to develop assays for the evaluation of the efficacy and safety of an anti-GMCSF neutralizing antibody in a Australian first-in-man clinical trial in patients with severe rheumatoid arthritis (RA). This chimeric antibody has been developed by the Ludwig Institute for Cancer Research, Melbourne Branch, in conjunction with KaloBios Pharmaceuticals, Inc., USA. It is intended to use the assays developed in this project to facilitate commercial development of this antibody, ....The aim of this project is to develop assays for the evaluation of the efficacy and safety of an anti-GMCSF neutralizing antibody in a Australian first-in-man clinical trial in patients with severe rheumatoid arthritis (RA). This chimeric antibody has been developed by the Ludwig Institute for Cancer Research, Melbourne Branch, in conjunction with KaloBios Pharmaceuticals, Inc., USA. It is intended to use the assays developed in this project to facilitate commercial development of this antibody, and result in the development of an improved treatment for this devastating disease.Read moreRead less
Development And Evaluation Of Novel Anti-inflammatory Products Derived From An Indigenous Medicinal Plant
Funder
National Health and Medical Research Council
Funding Amount
$276,598.00
Summary
This collaborative project between researchers at the University of South Australia and Indigenous traditional owners from Northern Kaanju homelands (Cape York Peninsula, Qld) will develop and evaluate products derived from the Northern Kaanju medicinal plant Dodonaea polyandra. Extracts of the plant and novel compounds isolated from it have anti-inflammatory activity. These have the potential to be used in inflammatory diseases such as dermatitis, arthritis and inflammatory bowel disease.
Development Of A Simple Chemical Test For Detecting DNA-interacting Compounds For Medical And
Funder
National Health and Medical Research Council
Funding Amount
$315,450.00
Summary
The project exploits a simple chemical reaction to detect and measure the interaction of compounds with DNA. The test will be useful in the early screening of drug candidates for genotoxicity, identifying new anticancer drugs and also find application in the environmental, cosmetic and food industries. Work will focus on establishing peak conditions for the test, determining the scope of application, testing a panel of control compounds and performing a blind study to provide proof of concept.
A New Non-invasive Diagnostic Technique Based On Detection Of Exhaled Respiratory Pathogens.
Funder
National Health and Medical Research Council
Funding Amount
$179,300.00
Summary
We developed a special collection mask and showed that the breath of people with colds or flu contains a tiny amount of virus. Currently, diagnostic samples are collected by putting a tube into the airways - this is very uncomfortable. Our masks may provide a new and more comfortable way to diagnose lung infections. We want to build better masks and ways to detect viruses and bacteria to test out this method. This may create a new test that will improve diagnosis and treatment.