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The Role Of 'Orphan' Transporters In Bone Homeostasis And Disease
Funder
National Health and Medical Research Council
Funding Amount
$675,668.00
Summary
Osteoclasts (OCs) are giant multinucleated cells exclusively responsible for physiological bone degradation (resorption). Excessive OC activity leads to localised bone destruction (osteolysis) as observed in patients with osteoarthritis and underlies decreased bone mass and fragility fractures that are a hallmark of osteoporosis. This project examines the role of an orphan solute carrier transporter in OC function and its potential involvement in bone disease.
Epilepsy is often poorly controlled by medication and dietary measures can be taken that reduce occurrence of epileptic seizures. Glucose control is impacted by diet and also mutations in the genes that move glucose around the body are known to cause epilepsy. Here we will be studying how the genetic and dietary control of glucose levels impacts brain function to increase seizures and to potentially reveal novel therapies.
To Biochemically Trick P-Glycoprotein (Pgp) To Target Resistance Via Lysosomal Pgp
Funder
National Health and Medical Research Council
Funding Amount
$603,848.00
Summary
We have discovered an innovative biochemical strategy whereby our novel compounds exploit and trick a part of the detoxification machinery, that is the transporter, P-glycoprotein, to specifically kill drug resistant cancer cells. Herein, we take advantage of this biochemical mechanism to design novel and safe drugs to selectively target resistant tumours.
ABCA12 – A New Regulator Of Cellular Lipid Metabolism And Inflammation
Funder
National Health and Medical Research Council
Funding Amount
$786,676.00
Summary
Dysregulation of cholesterol metabolism plays a key role in a number of diseases – from diabetes and atherosclerosis to neurological and skin disorders. Mechanisms of regulation of cholesterol metabolism are poorly understood. We have recently discovered a new pathway regulating cholesterol metabolism and in this study we will investigate molecular, cellular and physiological mechanisms of this pathway and will identify the possibilities to target it for therapeutic intervention.
Regulation From The Outside: Control Of Transport And Assembly Of Major Cell Wall Components In Mycobacteria
Funder
National Health and Medical Research Council
Funding Amount
$652,019.00
Summary
Tuberculosis (TB) kills nearly two million people each year while the causative bacterial species, Mycobacterium tuberculosis, infects one-third of the entire human population. An alarmingly high rate of TB exists in Australia's indigenous population. This proposal aims to identify and characterise essential processes that regulate synthesis of the outer coat of the bacterium, which are potential targets for new drugs for the treatment of this devastating disease.
Dynamic Trafficking Of Amino Acid Transporters At Synapses And Their Role In Regulating Neurotransmission
Funder
National Health and Medical Research Council
Funding Amount
$421,219.00
Summary
Brain cells release chemical neurotransmitters to activate their neighbours. The most abundant neurotransmitter is glutamate, which mediates most of the communication in the brain. Following release, this neurotransmitter must be rapidly recycled to prevent levels being depleted and neurotransmission failing. The subject of this grant is to understand what molecules and pathways are used to recycle glutamate in the brain, and how its supply is controlled to sustain continual brain activation.
Glycine Transport Inhibitors For The Treatment Of Pain
Funder
National Health and Medical Research Council
Funding Amount
$923,660.00
Summary
Chronic pain is particularly difficult to treat. Whilst currently used opioid drugs are effective in acute pain, they are either ineffective in chronic pain or have considerable side effects. In this project we will develop a new class of analgesics that have a different mechanism of action to traditional analgesics. It is hoped that these new drugs will provide long term pain relief without debilitating side effects.
Novel Cellular Trafficking Mechanisms For The Drug Influx Transporter, Human Organic Anion Transporting Polypeptide 1A2 (OATP1A2)
Funder
National Health and Medical Research Council
Funding Amount
$337,614.00
Summary
Human organic anion transporting polypeptides (OATPs) are membrane proteins that regulate the cellular uptake of endogenous and exogenous substances including anti-cancer drugs. OATPs strongly determine whether such drugs enter the tissues where they are required to exert their effects. This project will study novel mechanisms that we have recently identified that determine the orientation of transporters in the cells. These processes can be impaired by a common pharmacogenetic variant in indivi ....Human organic anion transporting polypeptides (OATPs) are membrane proteins that regulate the cellular uptake of endogenous and exogenous substances including anti-cancer drugs. OATPs strongly determine whether such drugs enter the tissues where they are required to exert their effects. This project will study novel mechanisms that we have recently identified that determine the orientation of transporters in the cells. These processes can be impaired by a common pharmacogenetic variant in individuals.Read moreRead less
Optimising Inhaled Polymyxins As A Vital Therapy For Pulmonary Infections: A Novel Biochemical, Molecular Imaging And Systems Pharmacology Approach
Funder
National Health and Medical Research Council
Funding Amount
$728,044.00
Summary
Lung infection is a leading cause of death in Australia and globally. Many bacterial pathogens are resistant to almost all current antibiotics. A class of ‘old’ antibiotics, polymyxins, are the last option for bacterial ‘superbugs’. Unfortunately, the current use of polymyxins is suboptimal and can cause severe kidney toxicity. This multi-disciplinary project will apply cutting-edge techniques to optimise inhaled polymyxin therapy for treatment of life-threatening pulmonary infections.
Microparticles And Selective Trait Dominance In Multidrug Resistant Cancers
Funder
National Health and Medical Research Council
Funding Amount
$478,115.00
Summary
Multidrug resistance (MDR) is the cause of treatment failure in 90% of patients with metastatic cancer. We recently discovered a novel resistance mechanism in which microparticles provide a vehicle for intercellular transfer of MDR. We now report that MP play an even more significant role in conferring MDR, by the ñre-templatingî of cancer cell traits. This has considerable potential for translation into clinical outcomes with the identification of alternative drug targets and therapeutics for t ....Multidrug resistance (MDR) is the cause of treatment failure in 90% of patients with metastatic cancer. We recently discovered a novel resistance mechanism in which microparticles provide a vehicle for intercellular transfer of MDR. We now report that MP play an even more significant role in conferring MDR, by the ñre-templatingî of cancer cell traits. This has considerable potential for translation into clinical outcomes with the identification of alternative drug targets and therapeutics for the circumvention of MDR clinically.Read moreRead less