Circuit Breaker: Investigating The Regulatory Circuits Controlling Expression Of Drug Efflux Pumps In The Nosocomial Pathogen Acinetobacter Baumannii
Funder
National Health and Medical Research Council
Funding Amount
$515,244.00
Summary
Hospital-acquired infections caused by drug resistant pathogenic bacteria cost billions of dollars and increase patient pain and morbidity. This research will study the genes controlling multidrug efflux pumps in a major hospital-acquired bacterial pathogen, Acinetobacter baumannii. These efflux pumps make the bacteria resistant to antimicrobials by pumping them out of the cell. The results will allow us to better track drug resistant strains and will inform treatment options.
The Molecular Basis For Manganese Uptake By Pathogenic Bacteria.
Funder
National Health and Medical Research Council
Funding Amount
$632,949.00
Summary
Bacterial antimicrobial resistance is an increasing threat to human health. At this point in time, there is an urgent, fundamental need for the development of new antimicrobial strategies. Bacterial infection involves a constant tug-of-war between the pathogen and the human host for the essential nutrients of life, including trace metal nutrients such as Mn. This project seeks to understand the machinery for Mn uptake by pathogenic bacteria as a target for novel antibacterial design.
The Molecular Mechanism Of Ion-coupled Transport In The Brain
Funder
National Health and Medical Research Council
Funding Amount
$441,407.00
Summary
Cells in the brain communicate through chemical signals called neurotransmitters. Neurotransmitter transporters reside in the membranes of cells and are responsible for regulating levels of these chemicals in the brain. They play an important role in the normal function of the human brain but their dysfunction is responsible for many diseases including Alzheimer's disease and motor neuron disease. It is crucial to understand how these proteins work in both normal and disease states.
Prof Parton is a cell biologist studying how the plasma membrane functions in health and in disease. These studies have provided new insights into potential vehicles that can be used to introduce therapeutic agents into cells.
Membrane Trafficking Of BACE1 And Amyloid Precursor Protein In Primary Neurons And The Production Of Abeta Amyloid Peptides
Funder
National Health and Medical Research Council
Funding Amount
$705,984.00
Summary
The development of Alzheimer’s disease results from the generation of toxic peptides by the cleavage of a membrane protein by an enzyme called BACE. A key feature of which regulates the generation of toxic peptides involves the movement of BACE between compartments in the cell by a process known as membrane transport. Our recent work has identified the itinerary of BACE in the cell. The studies here will reveal the molecular machinery of the BACE pathway in neurons. This fundamental informati
A Targeted Nutrient-depletion Approach To Tackle Prostate Cancer
Funder
National Health and Medical Research Council
Funding Amount
$408,388.00
Summary
Prostate cancer is the most prevalent male specific cancer, and has a similar incidence to breast cancer in women. We are studying the role of protein pumps that control the amount of nutrients taken into and out of cancer cells. We are aiming to structurally determine LAT1 and LAT3, two nutrient pumps important for cancer progression, and to use these structures as a platform for drug design where the intention is to drugs 'starve’ the cancer by restricting nutrient uptake.
Membrane Trafficking Of The ?-secretase, BACE1, And The Generation Of Alzheimer's Disease A? Amyloid Peptides
Funder
National Health and Medical Research Council
Funding Amount
$465,704.00
Summary
Alzheimer’s disease results from the production of toxic neuropeptides by the action of an enzyme called BACE. The generation of toxic peptides requires the movement or trafficking of BACE between different cell compartments. This research will reveal the molecular machinery of the BACE transport pathway. This new knowledge will provide a strategy to develop drugs to inhibit BACE activity and the production of the toxic peptide, which would be of significant benefit to patients and families.