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Novel Insights Into The Pathobiology Of Alphavirus Infections
Funder
National Health and Medical Research Council
Funding Amount
$583,477.00
Summary
Ross River virus and chikungunya virus cause muscle and joint pain that can persist for a long time. This project looks at factors in the human host that affect the disease severity, with the aim of finding new treatments.
Cancers of the skin are the most common tumours in humans, and their diagnosis and treatment impose the largest costs on Australia’s cancer budget. While much has been learned about the roles of sunlight and skin type as risk factors for skin cancer, relatively little is known about the genes conferring risk. This study will compare the genetic profiles of over 6000 patients with skin cancer to 3000 people without skin cancer to pinpoint the genes responsible for skin cancer.
Understanding the basic biology of cells will allow us to pinpoint key mechanisms and molecules that underpin multiple diseases and are targets for treatments. The broad aims of this research program include the development of new therapies for chronic inflammatory diseases, understanding how proteins are sorted and trafficked inside cells in processes that are essential to immunity and cancer biology, and identifying new intracellular targets to block bacterial invasion and infectious diseases.
Polarized Trafficking Of E-cadherin In Epithelial Cells.
Funder
National Health and Medical Research Council
Funding Amount
$515,564.00
Summary
The cell adhesion protein E-cadherin is expressed in all epithelial tissues of the body where it has essential functions during development and in the adult in establishing and maintaining polarized cell monolayers. E-cadherin is also a vital tumour suppressor, its normal function guarantees that cells or even early tumours cannot metastasise; in contrast E-cadherin is always lost or malfunctions in malignant tumours. Earlier studies showed that E-cadherin is constantly moved, or trafficked, to ....The cell adhesion protein E-cadherin is expressed in all epithelial tissues of the body where it has essential functions during development and in the adult in establishing and maintaining polarized cell monolayers. E-cadherin is also a vital tumour suppressor, its normal function guarantees that cells or even early tumours cannot metastasise; in contrast E-cadherin is always lost or malfunctions in malignant tumours. Earlier studies showed that E-cadherin is constantly moved, or trafficked, to and from the surface of epithelial cells. This trafficking has dual roles, firstly in delivering newly-made E-cadherin to the surface where it functions and secondly, in regulating its adhesive function. Our research in this project is focussed on the molecules and intracellular compartments that control the delivery of E-cadherin to the cell surface. E-cadherin must be sorted in order to be delivered to the correct side of the cell. Having previously discovered the sorting signal in E-cadherin, we will now identify the cognate adaptor protein(s) that accomplish this sorting. New imaging techniques allow us to study protein trafficking inside live cells. Such studies have recently revealed that E-cadherin passes through a recycling endosome compartment on its way to the cell surface. This unexpected route, and the structure and role of the recycling endosome will now be studied in detail in live cells. Finally we will compare the sorting and trafficking of E-cadherin with the closely-related N-cadherin protein, to determine whether there are inherent differences in their trafficking that could explain their opposite roles in tumour cells, where N-cadherin is substituted for E-cadherin and allows metastatic behaviour. These studies will provide important information for understanding the adhesive and tumour suppressive roles of E-cadherin. In addition our findings will generate information fundamental to our understanding of cell polarity and protein sorting.Read moreRead less
Functional Contribution Of Fetal Microchimeric Cells In Transgenic Models Of Maternal Tissue Repair In And After Pregnancy
Funder
National Health and Medical Research Council
Funding Amount
$542,462.00
Summary
Fetal stem cells cross into the mother during pregnancy and persist lifelong in her tissues. To determine whether helpful or harmful, we will study how these cells contribute to healing both after acute injury and in chronic genetic models like brittle-bone disease and muscular dystrophy. This research will inform long-term consequences of pregnancy, important for women's health and longevity, and help develop a promising form of stem cell therapy.
Physiologically-based Pharmacokinetics And Pharmacodynamics Of Therapeutic Stem Cells For Liver Disease
Funder
National Health and Medical Research Council
Funding Amount
$848,710.00
Summary
This project focuses on the challenging area of effective and optimal dosing cell-based therapy for liver diseases. We will investigate the fate and therapeutic effects of natural, modified and artificial therapeutic cells in the body and in liver regions using a physiologically-based kinetic model. Our key goal is advance cell therapy by providing a better understanding and dosing guidelines.
Investigating Post-transcriptional Gene Regulation In Cancer
Funder
National Health and Medical Research Council
Funding Amount
$645,205.00
Summary
In this program, I will enhance our understanding of cancer gene regulation and provide novel avenues for the treatment of aggressive tumours. Using own data and that from collaborators, I will determine patterns of gene regulation in blood cancers and identify markers that predict disease outcome. I aim to understand how gene regulation can transform healthy cells into tumour cells and whether personalised treatment can kill tumour cells more effectively and prevent relapse and metastasis.
Functional Dyspepsia: Characterisation Of The Immunopathology And Testing A Novel Therapeutic Strategy.
Funder
National Health and Medical Research Council
Funding Amount
$739,604.00
Summary
Dyspepsia, unexplained stomach discomfort and pain, is a common and costly problem; few effective treatments exist and the causes are unknown. We have found that the numbers of a type of immune cell, the eosinophil, are increased in the top of the small bowel in patients with dyspepsia. This study will explore the mechanisms that lead to increased eosinophils and then test the effectiveness of a treatment to suppress this overactive immune response which could rapidly change clinical practice.