Mammalian chitinases and gene therapy: new weapons to combat fungal and insect attack in mammals. Plants combat fungal and insect attack by producing chitin degrading enzymes. Related, chitinolytic enzymes have been identified in mammals, but their functions are unclear. We found that chitinases from human macrophages inhibited fungal growth. We hypothesise that, like plants, mammalian chitinases are produced to fight chitin containing pathogens. We will transform cells with a chitotriosidase ge ....Mammalian chitinases and gene therapy: new weapons to combat fungal and insect attack in mammals. Plants combat fungal and insect attack by producing chitin degrading enzymes. Related, chitinolytic enzymes have been identified in mammals, but their functions are unclear. We found that chitinases from human macrophages inhibited fungal growth. We hypothesise that, like plants, mammalian chitinases are produced to fight chitin containing pathogens. We will transform cells with a chitotriosidase gene and encapsulate them, creating bioreactors secreting chitinases. Therapeutic effects will be tested by grafting bioreactors to mice inoculated with Aspergillus. The research is a new approach to fighting chitin containing pathogens, with potential applications from parasite infestations in livestock to fungal infections in humans.Read moreRead less
New uses for milk-derived products for eradication of Helicobacter pylori infection and gastro-intestinal site-specific delivery of active agents. Helicobacter pylori is the most significant bacterial pathogen in the world, infecting 50% globally. Current treatments are inducing rapid antibiotic resistance and are thus becoming increasingly less effective. The infection is acquired in childhood and new methods to prevent and/or treat the infection, minimising acquisition of antibiotic resistance ....New uses for milk-derived products for eradication of Helicobacter pylori infection and gastro-intestinal site-specific delivery of active agents. Helicobacter pylori is the most significant bacterial pathogen in the world, infecting 50% globally. Current treatments are inducing rapid antibiotic resistance and are thus becoming increasingly less effective. The infection is acquired in childhood and new methods to prevent and/or treat the infection, minimising acquisition of antibiotic resistance are urgently required. This project seeks to develop new ways of doing this that combine novel antibacterials with techniques to deliver them (and monitor this delivery) as well as modify the complex protective habitat in the stomach.Read moreRead less
Improving immune response to vaccines by selective targeting of epithelial regions with the Nanopatch. Vaccination protects us from infections like measles and flu. In principle, it could protect us from all diseases, even from skin cancer and arthritis. In practice, however, vaccines to diseases like cancer have largely proved ineffective. One problem is that we don't really understand how the body's immune system responds to vaccination. Our aim, therefore, is to investigate changes in the imm ....Improving immune response to vaccines by selective targeting of epithelial regions with the Nanopatch. Vaccination protects us from infections like measles and flu. In principle, it could protect us from all diseases, even from skin cancer and arthritis. In practice, however, vaccines to diseases like cancer have largely proved ineffective. One problem is that we don't really understand how the body's immune system responds to vaccination. Our aim, therefore, is to investigate changes in the immune system when a vaccine enters the skin, as might happen by injection. Experimenting with laboratory mice and a special vaccine-injecting Nanopatch that is attached to each mouse's ear, we are starting to understand how a vaccine affects the immune cells in the skin. In the future we plan to apply this knowledge to improve vaccination in people.Read moreRead less
Coproantigen detection tests for diagnosis of intestinal parasitic nematode infection. The aim of this project is to develop new tests for detection of hookworm and Strongyloides, two common intestinal worm infections of humans. These tests offer the potential to replace current tests, namely stool microscopy and serodiagnosis, both of whose performance is unsatisfactory due to deficiencies in sensitivity, specificity and operator convenience. The tests will rely on monoclonal antibodies to dete ....Coproantigen detection tests for diagnosis of intestinal parasitic nematode infection. The aim of this project is to develop new tests for detection of hookworm and Strongyloides, two common intestinal worm infections of humans. These tests offer the potential to replace current tests, namely stool microscopy and serodiagnosis, both of whose performance is unsatisfactory due to deficiencies in sensitivity, specificity and operator convenience. The tests will rely on monoclonal antibodies to detect parasite products in stool. Such testing technology is amenable to configuration in a robust format, suitable for large-scale manufacture. Given the worldwide prevalence of these parasites, the tests will have a market potential of international significance.Read moreRead less