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A Dendritic Cell Subset Targeting Approach For Generating Humoral Immunity
Funder
National Health and Medical Research Council
Funding Amount
$678,492.00
Summary
Potent vaccination might be achieved by using monoclonal antibodies as magic bullets to target vaccines to special cells in the body. We show that targeting these special cells by using monoclonal antibodies that recognise Clec9A is effective, perhaps because it brings several different immune cells together so that they orchestrate very efficient immune responses. This application investigates how targeting Clec9A allows strong vaccination so that we can apply this to new generation vaccines.
Understanding immune mechanisms induced by pulmonary vaccination. This project aims to better understand the mechanisms of immune induction of a novel lung vaccination strategy. The ability to deliver vaccines that induce potent lung and body wide immune responses in a safe and efficient manner has wide implications for both human and animal health. Ultimately, the vaccine will be delivered to the lung as stable dry powders in an attempt to negate the need for a transport cold chain and therefor ....Understanding immune mechanisms induced by pulmonary vaccination. This project aims to better understand the mechanisms of immune induction of a novel lung vaccination strategy. The ability to deliver vaccines that induce potent lung and body wide immune responses in a safe and efficient manner has wide implications for both human and animal health. Ultimately, the vaccine will be delivered to the lung as stable dry powders in an attempt to negate the need for a transport cold chain and therefore facilitate the distribution of the vaccines to remote areas. The project will not only benefit the Australian biotechnology industry but also the community at large and in particular those in remote areas without access to modern medical facilities.Read moreRead less
Leptin As A Natural Regulator Of TFH Cell Differentiation And Vaccination Response
Funder
National Health and Medical Research Council
Funding Amount
$594,901.00
Summary
Follicular helper T (Tfh) cells constitute a CD4+ T cell subset that plays an instrumental role to support protective antibody responses in infection and vaccination. Although malnutrition is associated with poor vaccine responses and increased risks of infections, the mechanism is poorly understood. We will investigate the mechanism by which leptin, a hormone secreted by adipose cells, regulates Tfh cell function and vaccination response.
Tracking B Cell And Neutralising Antibody Responses In Hepatitis C Virus Infections
Funder
National Health and Medical Research Council
Funding Amount
$318,768.00
Summary
Hepatitis C virus is one of the most significant human pathogens. There is no vaccine for HCV, and the antiviral treatment is expensive and does not stop reinfection. This project will study how the immune system of people infected with HCV generates antibodies to clear the virus. This will inform research efforts to design successful preventative vaccine to protect against this viral pathogen.
microRNAs and the control of T lymphocyte differentiation, function and malignant transformation. The molecular mechanism of the immune system is not completely understood. This project will investigate how transcription factors and microRNAs, two major types of regulatory molecules work together to control immune responses. The results from this research will assist in the design of better vaccination strategies and treat certain lymphomas.
Sytemic And Mucosal Functional Antibodies In Protection Against HIV
Funder
National Health and Medical Research Council
Funding Amount
$559,501.00
Summary
Only one human HIV vaccine has shown any level of protective efficacy. However the mechanisms behind how this vaccine was protective are still not fully understood. Additionally, HIV is primarily transmitted through mucosal sites, however very little is know about vaccine immune responses at these sites. Thus this proposal aims to further define the mechanisms of antibody protection against HIV at both systemic and mucosal locations, in order to guide future HIV vaccine design efforts.
Mechanisms Of B Cell Immunodominance To Influenza Virus
Funder
National Health and Medical Research Council
Funding Amount
$617,611.00
Summary
Current influenza vaccines elicit poor protection against viruses undergoing rapid change or emerging from animal reservoirs. We will define the basis for why highly conserved sites of virus vulnerability, such as the hemagglutinin "stem" domain, are poorly targeted by current vaccines and will assess novel hemagglutinin stem-based vaccines in macaque models of human influenza. Our results will guide the rational design of next-generation vaccines for influenza.
Dissecting Human B-cell Function: From Primary Immunodeficiencies To Chronic Inflammatory Disease
Funder
National Health and Medical Research Council
Funding Amount
$631,370.00
Summary
Despite knowing a lot about immunity in a mice, functional analysis of the human immune system has been a major challenge. I will study defects of immune cells in humans with gene mutations that cause an antibody deficiency. With new insights from these unique clinical samples, I will functionally dissect human immune responses, directly translate these to chronic inflammatory disease, and provide implications for future vaccine development and cancer treatment.
Dissecting The Mechanisms Of Vaccine Immunogenicity And Induction Of Protective Immunity Against Influenza Virus
Funder
National Health and Medical Research Council
Funding Amount
$365,145.00
Summary
Influenza pandemics have historically led to worldwide morbidity and mortality. Vaccination remains to be the only plausible strategy to limit widespread mortality as a result of an influenza pandemic. The parts of the immune system important in protecting individuals from influenza virus are poorly understood. This research aims to understand the important correlates of protective immunity in order to improve vaccine design.
Regulation Of The Production Of IgE Antibodies By Antigen-specific B Cells
Funder
National Health and Medical Research Council
Funding Amount
$330,662.00
Summary
Our team has been studying the immune cells that make antibodies and recently discovered that cells without a particular gene make large amounts of IgE antibody. IgE is responsible for asthma and other allergies, which are a major cause of morbidity in the Western world. Based on this discovery, we aim to find out exactly how and why IgE is made in some circumstances but not others, and what other immune cells are involved. These results will identify a way to prevent asthma and other allergies.