The Role Of Duffy And PF4 In The Platelet Killing Of Malaria Parasites.
Funder
National Health and Medical Research Council
Funding Amount
$350,045.00
Summary
Platelets in the blood can kill the Plasmodium parasite, which lives inside red blood cells and causes malaria. Platelets bind parasite-infected red cells and release a molecule that is toxic to the parasite. This project will study why a red cell molecule called Duffy is also needed for this function of platelets. Most Africans carry a gene for Duffy that stops its expression in red cells, and may therefore be more susceptible to malaria because their platelets cannot kill the malaria parasite.
Development, Regulation And Role Of Innate Immunological Memory In Malaria
Funder
National Health and Medical Research Council
Funding Amount
$563,860.00
Summary
Innate immunity is traditionally considered to be a short-lived, non-specific first line of defense against pathogens. However, recent reports suggest that innate immune cells can learn from previous pathogen encounters, resulting in enhanced responses on repeat infections with the same pathogen. We will study the role and regulation of innate immunological memory during malaria infection. This will advance our understanding of malaria immunology and will likely aid in the development of vaccine ....Innate immunity is traditionally considered to be a short-lived, non-specific first line of defense against pathogens. However, recent reports suggest that innate immune cells can learn from previous pathogen encounters, resulting in enhanced responses on repeat infections with the same pathogen. We will study the role and regulation of innate immunological memory during malaria infection. This will advance our understanding of malaria immunology and will likely aid in the development of vaccines.Read moreRead less
Wrong Parasite, Wrong Host? How Plasmodium Falciparum Erythrocyte Membrane Protein 1 Expression And The Host’s Innate Immune Response Combine To Influence The Inflammatory Response To Malaria In Vitro And In Vivo. Implications For Severe Malaria
Funder
National Health and Medical Research Council
Funding Amount
$707,821.00
Summary
One factor that determines whether some children die of malaria is the type of protein that the parasite expresses on the red blood cell, to help it stick in blood vessels. Our new data suggests that some proteins stimulate excessive host immune response, possibly leading to severe malaria. People's immne response to malaria varies too, and we will discover whether severe malaria occurs when a dangerous parasite strain infects a susceptible host causing an excessive immune response, harming the ....One factor that determines whether some children die of malaria is the type of protein that the parasite expresses on the red blood cell, to help it stick in blood vessels. Our new data suggests that some proteins stimulate excessive host immune response, possibly leading to severe malaria. People's immne response to malaria varies too, and we will discover whether severe malaria occurs when a dangerous parasite strain infects a susceptible host causing an excessive immune response, harming the child.Read moreRead less
Analysing the protective role of platelets during malaria infection. Platelets protect the host during malarial infection. This project aims to study how platelets kill the malaria parasite by investigating the role of host molecules and their potential as novel antimalarial agents. The role of platelets in the pathogenesis of cerebral malaria syndrome will also be investigated.
Mechanisms And Targets Of Antibody-complement Interactions That Neutralize Malaria
Funder
National Health and Medical Research Council
Funding Amount
$647,977.00
Summary
Our project aims to identify immune mechanisms that neutralize malaria from the moment of inoculation by a mosquito, before infection can become established to prevent the development of malaria disease. Furthermore, we will discover specific targets of protective immune responses. We expect this project will provide major new advances in our knowledge of human immunity to P. falciparum malaria, one of the world’s most significant causes of mortality and morbidity, and we will use this knowledge
Functional Assays Of Immunity To Malaria In Pregnant Women
Funder
National Health and Medical Research Council
Funding Amount
$578,905.00
Summary
Pregnant women are highly susceptible to malaria due to the adhesion of infected erythrocytes to the placenta. Antibodies to these infected erythrocytes can block their placental adhesion and/or facilitate their clearance by immune cells, improving pregnancy outcomes. We aim at informing vaccine design by better understanding the placental adhesion mechanisms and identifying targets of protective immunity as well as antibody correlates of protection from placental malaria and its consequences.
Understanding The Development Of Humoral Immunity To Malaria Merozoites
Funder
National Health and Medical Research Council
Funding Amount
$642,804.00
Summary
We will examine the acquisition of antibody responses to various P. falciparum surface antigens and their association with reduced risk of re-infection and symptomatic malaria in a treatment re-infection study of children from a malaria endemic area of Papua New Guinea. The effector mechanisms by which protective antibodies control parasite burden will be idendify. Defining the antigenic targets and effector mechanisms of immunity is essential for developing anti-malarial vaccines.
This an integrated program of basic research on antigen discovery and immune mechanisms, and preclinical research on novel vaccine platforms, formulations or delivery systems for the rational design and clinical testing of a next generation vaccine against malaria. This interdisciplinary research fosters strong national and international links and offers the potential for significant economic benefit to Australia.