Conquering Schistosomiasis In China: The Last Mile
Funder
National Health and Medical Research Council
Funding Amount
$2,432,780.00
Summary
Schistosomiasis (Bilharzia), caused by Schistosoma bloodflukes, is an ancient disease in the People’s Republic of China (PRC). After decades of control, the Chinese authorities have slated their intention to eliminate the disease by 2020. However, current diagnostic methods underestimate the true infection rates so we contend this target is unattainable. Supplementation of current control measures with additional public health interventions will be required to achieve the goal of elimination.
Targeting Schistosome Calcium Signalling To Improve And Broaden Praziquantel Efficacy
Funder
National Health and Medical Research Council
Funding Amount
$481,661.00
Summary
Schistosomiasis is caused by parasitic worms, treatment relies solely on praziquantel (PZQ). Schistosomes respond and recover from PZQ exposure through modulation of the gene CamKII. We will target this gene to both increase and extend the efficacy of PZQ in both adult parasites and in refractory juvenile parasites. Research will expand into assaying CamKII inhibitors to maximise effectiveness and take this work into animal models of this disease.
New Interventions To End Neglected Tropical Diseases In Asia
Funder
National Health and Medical Research Council
Funding Amount
$926,980.00
Summary
My research goal is to eliminate parasitic worm infestations globally. These parasites cause substantial illness and affect the world's poorest people. Programs that drug treat infected individuals operate but these are neither effective nor sustainable. Our research has shown that additional measures, such as vaccination and health education, are needed and we aim to develop and field test a combination of interventions that will lead to their sustainable control and eventual elimination.
A New Animal Model For Genitourinary Schistosomiasis
Funder
National Health and Medical Research Council
Funding Amount
$395,711.00
Summary
Schistosoma haematobium causes genitourinary schistosomiasis, a serious disease that affects reproductive health, urinary system health and potentially bladder cancer. This species is the most pathogenic species of all schistosomes, but comparatively less is know about it than other species because of a lack of a suitable model. We need a suitable model host for this important parasite. This project will test whether newborn pigs can be used as laboratory models.
Elimination Of Zoonotic Schistosomiasis And Echinococcosis Through Integrated Morbidity Control
Funder
National Health and Medical Research Council
Funding Amount
$898,008.00
Summary
I am a parasitologist researching the biology, immunology and epidemiology of human parasitic worms, particularly the schistosome bloodflukes and the hydatid tapeworms, which cause bilharzia and hydatidosis, diseases of the world’s poorest people that cause both major suffering and economic loss. My goal is to develop new methods, including vaccination, to control and eventually eliminate these parasites.
Unravelling The Tetraspanin Web In The Schistosome Tegument.
Funder
National Health and Medical Research Council
Funding Amount
$309,537.00
Summary
Infection with the human blood fluke, Schistosoma mansoni, is a major human ailment affecting almost 200 million people world wide and causing approximately 200 000 deaths per year. Current control efforts rely on anthelminthic drugs but, to sustain their effects, they must be applied for an indefinite period of time due to reinfection. This project will extend recent efforts to develop a vaccine for this organism and decrease the public health burden and mortality associated with infection.
Impact Of The Three Gorges Dam On Transmission And Future Control Of Human Schistosomiasis In China
Funder
National Health and Medical Research Council
Funding Amount
$1,420,135.00
Summary
A million Chinese have schistosomiasis or snail fever. When the Three Gorges Dam on the Yangtze River is fully operational, considerable environmental-ecological changes will result, increasing spread of this parasitic disease. In a unique study we will assess the impact of the Dam on schistosomiasis, and test and model a series of options for its control. The findings will be important for China and other areas where schistosomiasis occurs and where similar dams are planned or are under way.
Apical Membrane Proteins As Targets For A Schistosomiasis Vaccine
Funder
National Health and Medical Research Council
Funding Amount
$480,459.00
Summary
Schsitosomiasis is a chronic neglected tropical disease for which there is currently no vaccine. A vaccine is sorely needed to control this parasite. This proposal seeks to identify molecules from the outer surface of the parasite which are recognised by the immune system of people from Brazil who are resistant to schistosomiasis. Molecules identified in this manner will be tested as vaccines in an animal model of schistosomiasis, and ranked based on their performances to enter human trials.
Transport Pathways Of Host-derived Iron In Schistosomes Parasites
Funder
National Health and Medical Research Council
Funding Amount
$322,091.00
Summary
This project will identify the diversity and biological roles of receptors for metabolic iron expressed on the body surface of the parasitic blood flukes (schistosomes) of humans. Schistosomes are a major health problem in many tropical countries and are responsible for significant human morbidity and lost productivity. Adult worms feed on human blood, from which derive amino acids for the production of many hundreds of eggs released per day into the human blood stream. The intense cellular resp ....This project will identify the diversity and biological roles of receptors for metabolic iron expressed on the body surface of the parasitic blood flukes (schistosomes) of humans. Schistosomes are a major health problem in many tropical countries and are responsible for significant human morbidity and lost productivity. Adult worms feed on human blood, from which derive amino acids for the production of many hundreds of eggs released per day into the human blood stream. The intense cellular response induced by parasite eggs trapped in body organs is the major cause of chronic human disease. We have discovered two intriguing phenomena of iron metabolism in schistosomes. Firstly, schistosomes have a greater reliance on iron than many other organisms, storing a surfeit in cells that produce the protein-rich egg shell. Secondly, a major transmembrane iron transporter of the parasites, thought to be involved in the uptake of iron, is found on the parasite external body surface and not in the parasite intestine. The extensive nutritional dependence of these worms on iron and the surface location of mediators of iron uptake raise the exciting possibility that we have uncovered a novel system that might be exploited for vaccine or drug-mediated control of these significant human parasites. If we can dissect the pathways schistosomes use to derive iron from their hosts, we may be able to generate vaccines to block this nutritional pathway, or use drugs to block embryogenesis. This project is a fact-finding mission that asks if the host-interactive tegument of these parasites is a major source of metabolic iron. Molecules we demonstrate to be present on the surface will be tested as vaccine candidates in mouse vaccine trialsRead moreRead less