Development of Liposaccharide Peptide Conjugates for Peptide Drug Delivery. We aim to adapt the Solid Phase Oligosaccharide Synthesis technology patented by Alchemia to develop methodologies that will allow the assembly of sugar, lipid and peptide units on a single solid phase resin. This synthetic technology will then be used to generate a library of liposaccharide conjugates of two model peptides (LHRH and TRH) to investigate and optimise a broadly applicable peptide drug delivery system whic ....Development of Liposaccharide Peptide Conjugates for Peptide Drug Delivery. We aim to adapt the Solid Phase Oligosaccharide Synthesis technology patented by Alchemia to develop methodologies that will allow the assembly of sugar, lipid and peptide units on a single solid phase resin. This synthetic technology will then be used to generate a library of liposaccharide conjugates of two model peptides (LHRH and TRH) to investigate and optimise a broadly applicable peptide drug delivery system which improves peptides oral absorption, metabolic stability and bioavailability.Read moreRead less
CHARGED LIPOSACCHARIDE BASED DRUG DELIVERY SYSTEM. Complexation of a drug with lipid and/or sugar units represents one of the most important of the strategies being investigated in this burgeoning field. Increasing the lipid solubility of a hydrophilic compound has been established as an important factor in improving its absorption as it is necessary for passive transport across intestinal mucosal membranes. The role of sugar unit is very important: (i) it modifies the physico-chemical propertie ....CHARGED LIPOSACCHARIDE BASED DRUG DELIVERY SYSTEM. Complexation of a drug with lipid and/or sugar units represents one of the most important of the strategies being investigated in this burgeoning field. Increasing the lipid solubility of a hydrophilic compound has been established as an important factor in improving its absorption as it is necessary for passive transport across intestinal mucosal membranes. The role of sugar unit is very important: (i) it modifies the physico-chemical properties (solubility), (ii) utilizes active transport systems (e.g. Glucose transport) and (iii) target the compound - "MAGIC BULET" (Lewis X analogues - damaged cells). There is no limit to the areas of medicine and public health that would benefit from revolutionary new technology in these areas.Read moreRead less
A combinatorial approach to creation of new epitopes with biological activity. We aim to develop and extend the Mosaic technology patented by Proxima Concepts Ltd. as a new methodolgy for dynamic combinatorial chemistry and drug delivery. The technology relies on bringing chemical structures of interest in close proximity by presenting them on the surface of a micelle type structure. These structures will also be developed at a targeted drug delivery vehicle. The technology will impact on the ....A combinatorial approach to creation of new epitopes with biological activity. We aim to develop and extend the Mosaic technology patented by Proxima Concepts Ltd. as a new methodolgy for dynamic combinatorial chemistry and drug delivery. The technology relies on bringing chemical structures of interest in close proximity by presenting them on the surface of a micelle type structure. These structures will also be developed at a targeted drug delivery vehicle. The technology will impact on the areas of drug discovery and drug delivery.Read moreRead less
BIOCATALYSTS MINED FROM CYTOCHROME P450 LIBRARIES: AN INNOVATIVE TOOL FOR ACCELERATING DRUG DEVELOPMENT. The cytochrome P450s (P450s) are a family of enzymes that are perhaps the most versatile biological catalysts known. DNA shuffling is an emerging technique that takes the genes encoding families of enzymes and creates libraries of catalysts with both improved and novel properties. We will obtain proof of concept that shuffled P450 libraries can be screened and optimized for use as biocatalys ....BIOCATALYSTS MINED FROM CYTOCHROME P450 LIBRARIES: AN INNOVATIVE TOOL FOR ACCELERATING DRUG DEVELOPMENT. The cytochrome P450s (P450s) are a family of enzymes that are perhaps the most versatile biological catalysts known. DNA shuffling is an emerging technique that takes the genes encoding families of enzymes and creates libraries of catalysts with both improved and novel properties. We will obtain proof of concept that shuffled P450 libraries can be screened and optimized for use as biocatalysts in drug development. The methodologies developed here will overcome two critical bottlenecks in current drug development: the optimisation and metabolic profiling of new drug candidates. This will yield important benefits in accelerating the optimisation and safety testing of drugs under development.Read moreRead less
Systematic evaluation of whether in vitro methods can predict in vivo opioid analgesic efficacy, safety and tolerability. It is estimated that chronic pain affects one in five individuals in the general community in Australia and worldwide, with prevalence rates correlated directly with advancing age. Chronic pain not only adversely affects the quality of life of individuals but it also places a large economic burden on our healthcare system. Development and validation of an in vitro method to ....Systematic evaluation of whether in vitro methods can predict in vivo opioid analgesic efficacy, safety and tolerability. It is estimated that chronic pain affects one in five individuals in the general community in Australia and worldwide, with prevalence rates correlated directly with advancing age. Chronic pain not only adversely affects the quality of life of individuals but it also places a large economic burden on our healthcare system. Development and validation of an in vitro method to successfully identify novel morphine-like strong analgesics with a reduced propensity for producing respiratory depression or constipation, has the potential to not only improve pain management for individuals and to reduce the economic burden of chronic pain on the Australian healthcare system, but it is also likely to produce direct economic benefits to our nation. Read moreRead less
Jet breakup of emulsions for the production of designer microparticulate drug delivery systems. Drug delivery systems are an important and growing part of the pharmaceutical and biotechnology market. The growth is estimated to be at 23% p.a. and is tied to the requirements for more precise and complex delivery profiles by highly potent drugs or vaccines (bioactives). To achieve the required level of control and precision, improved encapsulation technologies are needed to produce particles of a p ....Jet breakup of emulsions for the production of designer microparticulate drug delivery systems. Drug delivery systems are an important and growing part of the pharmaceutical and biotechnology market. The growth is estimated to be at 23% p.a. and is tied to the requirements for more precise and complex delivery profiles by highly potent drugs or vaccines (bioactives). To achieve the required level of control and precision, improved encapsulation technologies are needed to produce particles of a precise size and narrow size distribution. This project aims to develop an innovative technology for the production of superior uniformly sized particulate drug delivery systems for the delivery of the "next generation" bioactives.Read moreRead less
Lipid and Carbohydrate Based Systems to Target and Deliver Peptide Drug Candidates to Specific Cells. The demand for novel effective, orally available medicines to treat a wide range of diseases (cancer, pain - ageing Australian population) is increasing exponentially. Conjugation of peptide drug or vaccine candidates with lipids and/or sugars represents an important, novel strategy in the drug delivery and targeting field. Increasing the lipophilicity improves absorption through intestinal muco ....Lipid and Carbohydrate Based Systems to Target and Deliver Peptide Drug Candidates to Specific Cells. The demand for novel effective, orally available medicines to treat a wide range of diseases (cancer, pain - ageing Australian population) is increasing exponentially. Conjugation of peptide drug or vaccine candidates with lipids and/or sugars represents an important, novel strategy in the drug delivery and targeting field. Increasing the lipophilicity improves absorption through intestinal mucosal membranes. The carbohydrates increase the compound's aqueous solubility and can utilize active transport systems and can target the site required for its biological function. There is no limit to the areas of medicine and public health that would benefit from this revolutionary new technology.Read moreRead less
Topical peptide delivery for cosmetic and therapeutic benefits. Milk is a major Australian agricultural commodity and is now used in a number of topical products for the management of various skin conditions including chafing in babies, eczema and ageing skin. Hence, this work hopes to contribute to promoting and maintaining good health of Australians.
In addition, there is considerable research being conducted on peptide development for a range of diseases and there may be a possibility of ....Topical peptide delivery for cosmetic and therapeutic benefits. Milk is a major Australian agricultural commodity and is now used in a number of topical products for the management of various skin conditions including chafing in babies, eczema and ageing skin. Hence, this work hopes to contribute to promoting and maintaining good health of Australians.
In addition, there is considerable research being conducted on peptide development for a range of diseases and there may be a possibility of delivering these by the skin.
This work, in seeking to understand some of the fundamental determinants governing how exogenously applied peptides distribute in the skin, is also contributing to the development of Australian pharmaceutical and cosmetic industries.Read moreRead less
Targeting virulence of Pseudomonas aeruginosa by inhibiting oxidative protein folding. Our research will lead to the development of compounds with a novel anti-virulence/antibacterial mode of action for further drug development.
Novel polymeric microparticles for slow-release intrathecal delivery of analgesics. Unrelieved chronic pain is a large area of unmet medical need, adversely affecting the lives of millions of people worldwide. This project seeks to develop innovative methods for delivering a novel pain-relieving medication into the spinal fluid in close proximity to the cells that transmit pain messages to the brain. The goal is to develop a new treatment to produce prolonged periods of pain relief in those pat ....Novel polymeric microparticles for slow-release intrathecal delivery of analgesics. Unrelieved chronic pain is a large area of unmet medical need, adversely affecting the lives of millions of people worldwide. This project seeks to develop innovative methods for delivering a novel pain-relieving medication into the spinal fluid in close proximity to the cells that transmit pain messages to the brain. The goal is to develop a new treatment to produce prolonged periods of pain relief in those patients who do not obtain benefit from existing pain medications. The technology that will be developed has the potential to be applied to a broad range of analgesic drug treatments.Read moreRead less