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Pre-clinical Assessment Of Novel Growth Factor Complexes As A Topical Agent In The Treatment Of Deep
Funder
National Health and Medical Research Council
Funding Amount
$156,870.00
Summary
Healing of deep burns, unlike that of superficial injuries, often resolves with scarring. Scarring is reduced with rapid closure of burns. The CIs have discovered and patented novel growth factor complexes that stimulate the growth and migration of keratinocytes, cells derived from skin. Hence these complexes hold therapeutic potential for wounds that require rapid closure such as deep burns. This application will provide pre-clinical, proof-of-principle data to facilitate future patient trials.
Effects Of Pin Biomechanics, Coating Material And Surface Roughness On The Pin-bone Interface In External Repair
Funder
National Health and Medical Research Council
Funding Amount
$470,000.00
Summary
Some fractures require external fixation, anchored with metal pins in the bone fragments. The reatment is generally successful, although the pin tracts often loosen and become infected. This complication may jeopardise fracture healing and must be treated. The purpose of this project is to determine what aspects of pin design predispose to these problems at the pin-bone interface. Is it the way the pins are initially inserted, perhaps not tightly enough so that the pin is unstable, or perhaps to ....Some fractures require external fixation, anchored with metal pins in the bone fragments. The reatment is generally successful, although the pin tracts often loosen and become infected. This complication may jeopardise fracture healing and must be treated. The purpose of this project is to determine what aspects of pin design predispose to these problems at the pin-bone interface. Is it the way the pins are initially inserted, perhaps not tightly enough so that the pin is unstable, or perhaps too tight, causing microcracks in the bone? Is it the material of the pin, which might be improved with a bioactive coating? Is it the surface roughness which causes different responses of bone cells? Would it help to have an antibiotic pin? This proposal is designed to answer these questions. The biomechanics of the pin will first be studied with computer models and then tested in the laboratory. The loosening and infection associated with different types of pin will then be studied biologically. The results of the study will clarify the roles of pin biomechanics, coating and surface roughness, leading to improvements in design and better outcomes in fracture patients.Read moreRead less
Activated Protein C As A Promoter Of Wound Healing
Funder
National Health and Medical Research Council
Funding Amount
$391,650.00
Summary
The healing of wounds is a complex process involving a number of stages, including coagulation, inflammation, remodelling and finally development of full strength skin. Impaired wound healing and-or skin ulcers occur in patients with peripheral arterial occlusive disease, deep vein thrombosis, diabetes, pressure sores and burns. Despite intense investigation, the precise mechanisms associated with impaired healing are poorly understood. APC is a serine protease that plays a central role in physi ....The healing of wounds is a complex process involving a number of stages, including coagulation, inflammation, remodelling and finally development of full strength skin. Impaired wound healing and-or skin ulcers occur in patients with peripheral arterial occlusive disease, deep vein thrombosis, diabetes, pressure sores and burns. Despite intense investigation, the precise mechanisms associated with impaired healing are poorly understood. APC is a serine protease that plays a central role in physiological anticoagulation. APC potently activates gelatinase A, an enzyme that plays a prominent role during the remodelling phase of wound healing and angiogenesis. Our preliminary experiments provide very strong evidence that APC accelerates wound healing using both cultured cells and a rat skin wounding model. There are three aims to this study. The first will use cell culture techniques to investigate the mechanisms of action of APC during wound healing. Secondly, we will expand our pilot studies on the effect of APC as a promoter of wound healing in vivo. These studies will examine the exact dosing and timing regime for APC, using a rat wound healing model. In addition, we will test the effect of APC on slow healing wounds, present in diabetic rats. Thirdly, we will determine whether APC is quantitatively or functionally deficient in human wound fluid derived from slow-healing wounds compared to wounds that heal normally. This is the first time that APC has been implicated in wound healing. It is envisaged that this work will ultimately lead to a novel topical treatment of APC to accelerate slow-healing wounds.Read moreRead less
Development Of Monoclonal Antibody Therapy For Treating Wounds
Funder
National Health and Medical Research Council
Funding Amount
$573,354.00
Summary
Chronic wounds, diabetic ulcers, injuries in response to trauma, burns and scalds form a medical need which will only expand as the population ages and the diabetic epidemic grows. In our studies, we have shown that Flightless I (Flii), an actin-remodelling protein, is a negative regulator of wound healing. We are developing monoclonal antibodies as a new therapy for reducing Flii levels in wounds which leads to improved wound repair outcomes.
Development Of Flightless Antibody Therapy For Treating Wounds
Funder
National Health and Medical Research Council
Funding Amount
$194,071.00
Summary
Chronic wounds, diabetic ulcers, injuries in response to trauma, burns and scalds form a medical need which will only expand as the population ages and the diabetic epidemic grows. In our studies, we have shown that Flightless I (FliI), an actin-remodelling protein, is a negative regulator of incisional wound healing. We are now developing a new antibody therapy to reduce FliI levels in wounds thereby leading to improved wound repair outcomes.
Pre-clinical Evaluation Of Nano-membrane Dressings To Promote Wound Healing
Funder
National Health and Medical Research Council
Funding Amount
$188,600.00
Summary
This project will investigate whether a novel type of wound dressing can promote faster wound healing and reduce scarring. Time taken to heal is one of the best predictors of whether a wound will heal with significant scarring. The faster wounds heal the better. We have identified a new dressing with specific nano-scale pores that may promote faster healing. This dressing will be tested in the best model of human wound healing with the potential to progress to clinical trials if successful.
Development And Pre-clinical Evaluation Of A Novel Wound Dressing Treatment For Chronic Ulcers
Funder
National Health and Medical Research Council
Funding Amount
$125,040.00
Summary
Chronic leg ulcers are a common, painful and costly reality for many Australians, impacting on sufferers' mobility, social interactions and overall quality of life. This research is directed at developing a novel cost-effective wound dressing for treatment of this condition. This will be achieved through neutralising the ulcer's toxic proteolytic environment through an interactive wound dressing. This then will allow the body's own cells to promote wound healing.
Novel Methods For Promoting Organ Development And Growth
Funder
National Health and Medical Research Council
Funding Amount
$390,203.00
Summary
A revolutionary new therapy for treatment of growth restricted fetuses and premature babies is being developed through the administration of Colony Stimulating Factor (CSF-1). We have evidence that CSF-1 therapy can promote kidneys and lungs to continue development and maturation after birth. This exciting new finding allows for the application of CSF-1 therapy for both the treatment of premature babies and unborn babies with kidney defects.
Development Of Modified IGF-binding Proteins As Novel Anti-cancer Chemotherapeutics
Funder
National Health and Medical Research Council
Funding Amount
$77,375.00
Summary
We propose to enhance the effectiveness of current anti-cancer treatments by co-administering a protein to sequester growth factors that promote the resistance of cancer cells to chemotherapy. We aim to achieve improved destruction of breast and colorectal cancers but with reduced adverse side effects. Our in vitro data show the effectiveness of this novel co-therapeutic which is a modified form of a natural carrier protein for these growth factors. This application seeks funding to enable proof ....We propose to enhance the effectiveness of current anti-cancer treatments by co-administering a protein to sequester growth factors that promote the resistance of cancer cells to chemotherapy. We aim to achieve improved destruction of breast and colorectal cancers but with reduced adverse side effects. Our in vitro data show the effectiveness of this novel co-therapeutic which is a modified form of a natural carrier protein for these growth factors. This application seeks funding to enable proof of concept in vivo in order to attract commercial funding for clinical trials.Read moreRead less