Breaching membrane barriers. This project will endeavour to develop novel molecular transporters to deliver macromolecules inside cells or microorganisms. Cell membranes are barriers to macromolecules. The ability to cross these barriers and deliver biological macromolecules into cells represents a major achievement with endless opportunities to modulate pathways and to introduce biomarkers, therapeutics and research tools. The project’s novel platform technology would be based on stable cyclic ....Breaching membrane barriers. This project will endeavour to develop novel molecular transporters to deliver macromolecules inside cells or microorganisms. Cell membranes are barriers to macromolecules. The ability to cross these barriers and deliver biological macromolecules into cells represents a major achievement with endless opportunities to modulate pathways and to introduce biomarkers, therapeutics and research tools. The project’s novel platform technology would be based on stable cyclic peptides to deliver genes, proteins, probes or biomarkers into distinct cell types that can monitor or modulate specific pathways and be translated into new knowledge and specific industrial applications.Read moreRead less
Plant peptides as modulators of invertebrate neurohormone receptors. Naturally-occurring peptides are widely distributed in many plants, but their biological role is often unclear. Circular plant peptides (called cyclotides) that share similarities with the neuropeptide oxytocin, and acts on its receptor, have been previously isolated. This signalling system is important for reproduction, development, and behaviour as well as water homeostasis. To elucidate the natural function of cyclotides. Th ....Plant peptides as modulators of invertebrate neurohormone receptors. Naturally-occurring peptides are widely distributed in many plants, but their biological role is often unclear. Circular plant peptides (called cyclotides) that share similarities with the neuropeptide oxytocin, and acts on its receptor, have been previously isolated. This signalling system is important for reproduction, development, and behaviour as well as water homeostasis. To elucidate the natural function of cyclotides. This project aims to characterise the pharmacological properties and biological effects of invertebrate receptors and their modulation by cyclotides. The notion that plants produce molecules to target invertebrate receptors is extremely appealing and will enhance knowledge about fundamental biological processes of plant-animal ecology.Read moreRead less
Development of disulphide-rich peptides for drug design. Peptides are an outstanding source of potential drug leads. This project seeks to build on earlier breakthroughs by developing stable, peptide-based drugs to combat cancer and autoimmune diseases. The peptides, derived from natural sources, are anticipated to provide drug leads that can ultimately lead to treatments for these diseases.
The potential of membranes – peptide engineering to modulate ion channels. This project aims to develop a platform technology to identify new and selective sodium channel inhibitors based on ultra-stable venom peptides that can interact with and cross membranes. Sodium channels are involved in almost all aspects of human physiology. The ability to selectively inhibit individual sodium channel subtypes and to understand what drives peptides' ability to cross membranes would be a major achievement ....The potential of membranes – peptide engineering to modulate ion channels. This project aims to develop a platform technology to identify new and selective sodium channel inhibitors based on ultra-stable venom peptides that can interact with and cross membranes. Sodium channels are involved in almost all aspects of human physiology. The ability to selectively inhibit individual sodium channel subtypes and to understand what drives peptides' ability to cross membranes would be a major achievement and lead to new neuroscience research tools and technologies. This project’s proposed technology could be translated into new knowledge relevant to the biotechnology industry.Read moreRead less
Molecular probe development for high specificity and spatiotemporal control. This project aims at developing next-generation molecular probes with enhanced specificity and spatiotemporal control for the study of proteins and neuropeptide signalling. It addresses recognised knowledge gaps and technical bottlenecks in neuropeptide and memory research. Expected outcomes include a deeper molecular understanding of long-term memory formation and the role of neuropeptides in this process, as well as i ....Molecular probe development for high specificity and spatiotemporal control. This project aims at developing next-generation molecular probes with enhanced specificity and spatiotemporal control for the study of proteins and neuropeptide signalling. It addresses recognised knowledge gaps and technical bottlenecks in neuropeptide and memory research. Expected outcomes include a deeper molecular understanding of long-term memory formation and the role of neuropeptides in this process, as well as innovative chemistry strategies and novel molecular probes to advance fundamental research across the chemical and biological sciences. Anticipated benefits include technological innovations of relevance to Australia’s biotechnology sector and enhanced capacity for cross-disciplinary collaboration.Read moreRead less
Development of effective peptide-based drugs. There is huge interest in the development of bioactive peptides and proteins for the treatment of a wide range of diseases. The aim of this research project is to develop potent and effective peptide-based drugs that are able to resist the body's natural degradation pathways so that they can reach their biological target and act as effective drugs.
New platform technologies for the chemical synthesis of post-translationally modified proteins. The last decade has seen an explosion in the number of protein drugs approved for use in the clinic, a large proportion of which possess post-translational modifications (PTMs). These modified protein drugs are produced and sold as mixtures which has led to difficulties in understanding the role of specific PTMs on activity and in gaining clinical approval for candidate drugs. This project will provid ....New platform technologies for the chemical synthesis of post-translationally modified proteins. The last decade has seen an explosion in the number of protein drugs approved for use in the clinic, a large proportion of which possess post-translational modifications (PTMs). These modified protein drugs are produced and sold as mixtures which has led to difficulties in understanding the role of specific PTMs on activity and in gaining clinical approval for candidate drugs. This project will provide a fundamental solution to this problem through the development of novel synthetic methods and a powerful new platform technology for accessing PTM proteins in pure form. The utility of this technology will be demonstrated through its use in the total chemical synthesis of a range of PTM proteins for applications in biology and medicine.Read moreRead less
Bioactive Peptides as Pharmacological Tools and Novel Drug Leads. Bioactive peptides are produced by all organisms and play numerous critical physiological roles, including in cellular communication, host defence and capture of prey. Peptides have huge potential as tools for studying roles of signalling pathways and as novel drugs due to their high affinity and selectivity for various therapeutically relevant targets. However their use has been limited by poor in vivo stability. This project is ....Bioactive Peptides as Pharmacological Tools and Novel Drug Leads. Bioactive peptides are produced by all organisms and play numerous critical physiological roles, including in cellular communication, host defence and capture of prey. Peptides have huge potential as tools for studying roles of signalling pathways and as novel drugs due to their high affinity and selectivity for various therapeutically relevant targets. However their use has been limited by poor in vivo stability. This project is focused on studying structural features of a range of peptides and their contributions to both activity and to resistance against degradation, with the aim to develop stabilised bioactive peptide sequences for in vivo applications, allowing the full potential of peptides as drugs to be realised.Read moreRead less