Identification Of Germline Variation That Predicts Progression Free Survival Following Chemotherapy For Advanced Ovarian Cancer
Funder
National Health and Medical Research Council
Funding Amount
$633,156.00
Summary
Women diagnosed with ovarian cancer typically undergo surgery, followed by chemotherapy. However, the efficacy of chemotherapy varies widely, with some women responding well, whilst others are exposed to the toxic effects of a treatment that does them little good. We aim to identify the genes which explain why there are differences in response. This will lead to more individualised chemotherapy and improved outcomes for women with ovarian cancer.
Improving Oesophageal Adenocarcinoma Outcomes Through Understanding Genomics And Treatment Toxicity.
Funder
National Health and Medical Research Council
Funding Amount
$1,013,282.00
Summary
Oesophageal adenocarcinoma is an aggressive cancer, as most patients will not survive for more than 5 years. Therefore we need to find better ways to treat patients. In this study we will identify the DNA mutations in oesophageal cancers that were part of clinical trial. The data allow us to determine why some tumours responded well to therapy, and why some patients had serious side effects to the treatment. The results will help inform on selection of therapy for future patients.
Examination Of The Molecular Pharmacology Of Anthracyclines Induced Via Their Interaction With Iron
Funder
National Health and Medical Research Council
Funding Amount
$618,401.00
Summary
Anthracyclines are highly effective anti-cancer drugs, but their use is limited by toxic effects on the heart. This is thought to be due to these drugs directly binding iron (Fe). Indeed, we showed that anthracyclines induced marked changes in the way heart cells utilise Fe (DR1-3, 38; Mol. Pharmacol. 2002, 2003, 2004, 2005). We were the first to show that anthracyclines prevent Fe release from the criticial Fe storage protein ferritin. This prevents the use of Fe for vital processes eg. DNA and ....Anthracyclines are highly effective anti-cancer drugs, but their use is limited by toxic effects on the heart. This is thought to be due to these drugs directly binding iron (Fe). Indeed, we showed that anthracyclines induced marked changes in the way heart cells utilise Fe (DR1-3, 38; Mol. Pharmacol. 2002, 2003, 2004, 2005). We were the first to show that anthracyclines prevent Fe release from the criticial Fe storage protein ferritin. This prevents the use of Fe for vital processes eg. DNA and haem synthesis. Hence, this effect probably contributes to the cytotoxic activity of anthracyclines on the heart. We showed that novel drugs developed in my lab that bind Fe called chelators show high activity in animals (DR4) and prevent anthracycline-mediated Fe accumulation in ferritin. Importantly, Fe chelators have been shown to inhibit anthracycline-mediated cardiotoxicity. Indeed, the clinically used cardioprotective agent, ICRF-187, is actually an Fe chelator (5, DR6). However, ICRF-187 is not totally successful in terms of its cardioprotective effects and can cause myelosuppression (5, DR6). While the clinically used chelator, desferrioxamine (DFO), can prevent anthracycline-mediated cardiotoxicity, its poor membrane permeability limits its effectiveness. Our chelators are highly permeable and overcome the disadvantages of DFO (DR4). Thus, they are vital to examine for preventing anthracycline-mediated cardiotoxicity. In this proposal we will examine the changes in Fe metabolism induced by anthracyclines and test the hypothesis that novel Fe chelators may prevent the cardiotoxicity of these agents. We also aim to be the first to assess if preparation of anthracyclines which cannot bind iron prevents their cardiotoxicity. This will be done by preparing metal complexes of these drugs which prevent Fe-binding eg. anthracycline-zinc complexes. These studies are important for the development of less cardiotoxic forms of these very useful anti-tumour agents.Read moreRead less
Benefit Of 2D-strain Surveillance In Improving Cardiovascular Outcomes In Cancer Patients Undergoing Cardiotoxic Chemotherapy
Funder
National Health and Medical Research Council
Funding Amount
$2,391,979.00
Summary
Cancer survivors are susceptible to heart failure (HF) caused by heart muscle damage from chemotherapy. The current testing for this problem is based on a measure that cannot identify minor changes of cardiac function. Cardiac strain is a sensitive new marker of cardiac function which is predictive of overt dysfunction & HF. This study seeks to identify whether strain can be used to assign treatments that lead to improved cardiac function and are eventually associated with a reduction in HF.
Pharmacology Of Potential Anti-Tumour Agents: Iron Chelators Of The BpT Class
Funder
National Health and Medical Research Council
Funding Amount
$585,455.00
Summary
Pharmacology of Potential Anti-Tumour Agents: Iron Chelators of the BpT Class Cancer cells have a high iron requirement for DNA synthesis and many clinical trials showed Fe chelators are effective anti-cancer drugs. Their potential to act as anti-tumour agents has been confirmed by the entrance of Triapine into widespread NCI clinical trials. In this NHMRC Renewal, we will perform pharmacological and preclinical studies to promote the development of BpT chelators as novel anti-tumour agents.
Mitochondrially targeted anti-cancer drugs modulate the mitochondrial genome. Successful cancer management requires novel therapeutical approaches. This project will test the effect of a new class of compounds that target mitochondria, the powerhouse of the cells, where they suppress expression of mitochondrial genes. By this mechanism, cancers that are resistant to apoptosis induction can be inhibited.
Targeting the delivery of cytotoxic agents to tumour cells using novel minicells as drug delivery vehicles and engineered, bispecific antibodies. Cancer persists as a major cause of morbidity and mortality globally. A major problem is the non-specific action of drugs used for treatment. The minicell is a drug delivery vehicle, capable of packaging a variety of drugs. The project will develop tumour-specific antibodies that will target minicells to tumours, improving cancer survival rates.
EGFR-directed radioimmunotherapy combined with chemotherapy and DNA repair inhibition: development towards clinical application for aggressive cancers. Pancreatic ductal adenocarcinoma (PDAC) and triple negative breast cancer (TNBC) are aggressive diseases which lack effective therapies in clinical use. A novel and curative therapy was developed against PDAC and TNBC which involves targeted radiotherapy combined with chemotherapy and DNA damage response inhibition. This project will develop a “p ....EGFR-directed radioimmunotherapy combined with chemotherapy and DNA repair inhibition: development towards clinical application for aggressive cancers. Pancreatic ductal adenocarcinoma (PDAC) and triple negative breast cancer (TNBC) are aggressive diseases which lack effective therapies in clinical use. A novel and curative therapy was developed against PDAC and TNBC which involves targeted radiotherapy combined with chemotherapy and DNA damage response inhibition. This project will develop a “preclinical data package” comprising a biological rationale and preclinical evidence of safety and efficacy that together would justify an early phase clinical trial. This package includes the choice of formulations, mechanism of action and safety studies. This development will have an immediate impact for PDAC and TNBC patients and a future impact on other EGFR-positive cancers.Read moreRead less
Caged lanthanides for use in photo-dynamic therapy and near infra-red imaging. The early detection and effective treatment of cancer are two critical factors which determine survivability. This project will provide improved drugs for photo-dynamic therapy and develop emissive probes for near infra-red imaging to allow better discrimination between healthy and diseased tissue and improve subsequent treatment.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE110100174
Funder
Australian Research Council
Funding Amount
$800,000.00
Summary
Innovative synchrotron science - program for access to the Australian National Beamline Facility and cutting-edge beamlines at international synchrotrons. Synchrotron science dramatically affects the community through the innovative scientific, engineering and medical research outcomes it produces. This program for access to synchrotron beamlines is aimed at enhancing Australia's high international standing in synchrotron science and will have many flow-on effects in areas such as health and ind ....Innovative synchrotron science - program for access to the Australian National Beamline Facility and cutting-edge beamlines at international synchrotrons. Synchrotron science dramatically affects the community through the innovative scientific, engineering and medical research outcomes it produces. This program for access to synchrotron beamlines is aimed at enhancing Australia's high international standing in synchrotron science and will have many flow-on effects in areas such as health and industry.Read moreRead less