The Complementary Effects Of Matrilins And WARP On Chondrogenesis Through TGF-beta Signaling
Funder
National Health and Medical Research Council
Funding Amount
$327,428.00
Summary
Osteoarthritis (OA), characterized by degeneration of articular cartilage matrix structure, is one of the most common types of arthritis. Although it is known that aging is a leading factor, the exact cause of degeneration of articular cartilage is not well understood. In order to aid the discovery of treatments and diagnostic tools for this joint disease, understanding functional and mechanistic properties of cartilage specific proteins, namely matrilins and WARP, is essential.
Molecular Mechanisms Of Disease In The Collagen VI-related Muscular Dystrophies
Funder
National Health and Medical Research Council
Funding Amount
$519,715.00
Summary
The inherited muscular dystrophies are an important cause of disability in Australia. This project concentrates on the second most common group of congenital muscular dystrophies - those caused by mutations in collagen VI and its interacting partners. We will determine how mutations affect the structure of the protein and how the muscle is disrupted by the mutations. This work will open the way for research into potential therapies. We will also find new genes that cause muscular dystrophy.
Smart Synthetic Biomaterial Provides An Appropriate Microenvironment For Bone Tissue Regeneration
Funder
National Health and Medical Research Council
Funding Amount
$337,946.00
Summary
The demand for synthetic biomaterials to repair lost or diseased bone is rapidly growing and placing a major burden on national health budgets. But the synthetic scaffolds currently in use are far from optimal. My aim is to determine the underlying mechanisms by which synthetic biomaterials promote bone regeneration, in order to develop better scaffolds. This would improve health outcomes for recipients of bone graft substitutes as well as reduce individual and national healthcare costs.
Oxidation Of Arterial Extracellular Matrix By Myeloperoxidase-derived Oxidants
Funder
National Health and Medical Research Council
Funding Amount
$183,266.00
Summary
It is well established that changes occur in the composition and nature of the extracellular matrix present in the artery wall during the development of atherosclerosis. The changes that occur in this matrix affect both the mechanical and physical properties of the arterial wall (e.g. its ability to cope with the high pressures genrated by the pumping of blood from the heart) and the adhesion of cells. It is well established that certain key cell types do not adhere well, or grow properly, on al ....It is well established that changes occur in the composition and nature of the extracellular matrix present in the artery wall during the development of atherosclerosis. The changes that occur in this matrix affect both the mechanical and physical properties of the arterial wall (e.g. its ability to cope with the high pressures genrated by the pumping of blood from the heart) and the adhesion of cells. It is well established that certain key cell types do not adhere well, or grow properly, on altered or damaged matrix and this can result in either the loss of key cell types from the artery wall (e.g. loss of endothelial cells) and - or the proliferation and invasion of cells from other sources (e.g. smooth muscle cell invasion into the intimal space). There is circumstantial evidence that some of these changes occur via the formation of oxidants by the heme enzyme myeloperoxidase which is released from activated white cells. In this study we will employ recently developed analytical techniques to examine the nature of the alterations that are present in atherosclerotic plaques in comparison to normal human artery samples, and investigate the mechanisms by which such alterations arise. We will seek evidence for, or against, the involvement of myeloperoxidase-derived oxidants in the observed changes using specific markers which we have developed for the presence of such damage. This information will allow the rational design of strategies to interfere with the progression of atherosclerosis, which is the major killer of Australians.Read moreRead less
Harnessing The Extracellular Matrix To Fight Obesity-induced Cognitive Impairment
Funder
National Health and Medical Research Council
Funding Amount
$645,205.00
Summary
The health burden of obesity in Australia is great, but the detrimental impact of obesity on brain function is not yet understood. This research program takes an innovative approach to define how obesity changes non-neuronal brain components that regulate neuroplasticity and protect neurons from damage. Outcomes will define new mechanisms to prevent obesity-induced cognitive impairment and critical knowledge gain leading to novel therapeutic approaches and policy changes to improve health.
The Collagen-rich Matrix As A Driver Of Breast Cancer Progression And Resistance To Therapy
Funder
National Health and Medical Research Council
Funding Amount
$702,230.00
Summary
The extracellular matrix or 'matrix' surrounds all cells and is very important in controlling cell behaviour. In cancer, the matrix is dramatically altered, making cancer more aggressive. We recently developed a new way to study the matrix in breast cancer, and have analysed the matrix at different stages (Early/Mid/Late). We have uncovered exciting new matrix targets associated with more aggressive tumours. This project will validate their potential as therapeutic targets in breast cancer.
Defective Cell Migration As A Mechanism Of Dysregulated Asthmatic Airway Repair
Funder
National Health and Medical Research Council
Funding Amount
$616,712.00
Summary
Injury of the airway epithelium (cells lining the airways) is normally repaired by a process involving the deposition of specific proteins by the airway epithelial cells, promoting them to attach and migrate to cover the injury. These cells appear to be abnormal in asthmatics, in that they fail to repair. By studying specimens from healthy, allergic and asthmatic children we will determine the factors that influence the ability of these cells to repond to an injury in a normal manner specificall ....Injury of the airway epithelium (cells lining the airways) is normally repaired by a process involving the deposition of specific proteins by the airway epithelial cells, promoting them to attach and migrate to cover the injury. These cells appear to be abnormal in asthmatics, in that they fail to repair. By studying specimens from healthy, allergic and asthmatic children we will determine the factors that influence the ability of these cells to repond to an injury in a normal manner specifically through their ability to migrate.Read moreRead less