Evolution Of Adaptive Immunity To Gluten In Coeliac Disease.
Funder
National Health and Medical Research Council
Funding Amount
$472,034.00
Summary
Coeliac disease affects 1 in 100 Australians and can cause significant health problems. Under-diagnosis and a difficult, costly treatment (lifelong gluten free diet) are serious clinical issues. The feasibility of simpler diagnostics and therapies in children and adults for coeliac disease depends on whether children and adults react in the same way to gluten. This proposal seeks to determine whether the immune response to gluten changes over time and establish the feasibility of peptide-based a ....Coeliac disease affects 1 in 100 Australians and can cause significant health problems. Under-diagnosis and a difficult, costly treatment (lifelong gluten free diet) are serious clinical issues. The feasibility of simpler diagnostics and therapies in children and adults for coeliac disease depends on whether children and adults react in the same way to gluten. This proposal seeks to determine whether the immune response to gluten changes over time and establish the feasibility of peptide-based applications.Read moreRead less
Genomic Risk Of Coeliac Disease In First-degree Relatives
Funder
National Health and Medical Research Council
Funding Amount
$631,757.00
Summary
Coeliac disease is a common and strongly genetically determined inflammatory disorder triggered by gluten exposure. Because of its substantial genetic component, familial risk is substantial yet currently the actual risk is poorly quantified. We aim to use genomic profiling to construct and validate a novel risk score which can accurately determine which family members of coeliac disease cases are most at risk themselves.
An Investigation Into The Adaptive Immune Response In Celiac Disease
Funder
National Health and Medical Research Council
Funding Amount
$597,167.00
Summary
Celiac Disease (CD), an autoimmune-like disease that is triggered by the ingestion of dietary wheat gluten, or related proteins from rye and barely, affects ~1% of the population, causing tissue damage in the small intestine. The only available treatment is strict adherence to a lifelong gluten free diet. Our project aims to understand, at the molecular level, how components of the immune system and gluten interact to trigger the immune response that leads to CD symptoms.
The Role Of The Intestinal Epithelium In Gliadin Peptide Influx In Coeliac Disease
Funder
National Health and Medical Research Council
Funding Amount
$503,566.00
Summary
Food products made from cereals such as wheat are part of the staple diet for much of the world but unfortunately they trigger coeliac disease in 1:100 individuals including more than 100,000 Australians. This project aims to determine where the disease inducing proteins cross the cells that line the intestine to enter the body. It also aims at increasing the health of these cells to produce a barrier that can prevent the disease inducing proteins from entering the body.
Explaining The Selection Of Gluten Peptides Toxic In Coeliac Disease
Funder
National Health and Medical Research Council
Funding Amount
$704,117.00
Summary
Immune response genes shape the molecular specificity of immune responses, and some play a critical role in causing disease. Coeliac disease caused by gluten in food is very tighly linked to such genes. Discovery of the components of gluten in each genetic variant of coeliac disease will allow us to study how the gluten immune reaction in coeliac disease is controlled, and will be the basis of better diagnostic tests and therapies.
CONTAINMENT OF THE T-CELL RESPONSE TO GLUTEN IN COELIAC DISEASE
Funder
National Health and Medical Research Council
Funding Amount
$324,270.00
Summary
Coeliac disease affects about 1% of Casucasians and West Asians, about 250,000 Australians. Diagnosis of coeliac disease is problematic, less than one fifth of Australians with coeliac disease have been diagnosed, while many more adopt a gluten free diet and strictly avoid foods made from wheat, barley, rye and oats mistakenly thinking that they have coeliac disease. New diagnostics and therapies that are easy to perform and acceptable to patients are badly needed if the public are to benefit fr ....Coeliac disease affects about 1% of Casucasians and West Asians, about 250,000 Australians. Diagnosis of coeliac disease is problematic, less than one fifth of Australians with coeliac disease have been diagnosed, while many more adopt a gluten free diet and strictly avoid foods made from wheat, barley, rye and oats mistakenly thinking that they have coeliac disease. New diagnostics and therapies that are easy to perform and acceptable to patients are badly needed if the public are to benefit from emerging understanding of coeliac disease. It is an unfortunate mistake that the immune system recognizes and reacts to gluten in people with coeliac disease. The immune cells that sense gluten and damage the intestine, T-cells, detect only very specific short fragments (epitopes) of gluten proteins. Understanding which gluten fragments cause coeliac disease would enable new tests to diagnose coeliac disease, design of non-toxic gluten, and may even allow new treatments that could desensitise the immune system to gluten in the same way that desensitisation therapy works for allergy. Understanding of the gluten fragments causing coeliac disease is improving but it is still incomplete. We have developed a simple test that can pin-point the gluten fragments recognized by any individual with coeliac disease. With the help of volunteers with coeliac disease and a library of fragmented gluten proteins, we will be able to map all the regions of gluten in wheat, barley, rye, and oats that stimulate T-cells. We will find the most potent epitopes that could be used in diagnostic tests, food tests, and desensitisation therapy. Studying individuals with coeliac disease when they eat oats, normally a forbidden food for coeliac suffers yet fewer than 1:4 actually react to oats, will define the changes in intestinal tissue following destructive or tolerant responses to this grain and provide a tool to assess future desensitisation therapies for coeliac disease.Read moreRead less
The Role Of Wheat Gluten In The Genesis Of Gastrointestinal Symptoms And Fatigue In Patients With Non-coeliac Gluten Intolerance.
Funder
National Health and Medical Research Council
Funding Amount
$686,242.00
Summary
Currently �gluten- and wheat-intolerances� are poorly recognised by the medical profession and yet many Australians who do not have coeliac disease claim to be wheat- or gluten-intolerant. The most common complaints relate to chronic fatigue and gut symptoms such as wind and bloating. Our research team have new and recent evidence that wheat-gluten does trigger symptoms in some patients who suffer from Irritable Bowel Syndrome. This project aims to improve our understanding in this area.