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A Prospective Single Arm Trial Of Involved-field Radiotherapy For Stage I-II Low Grade Nongastric Marginal Zone Lymphoma
Funder
National Health and Medical Research Council
Funding Amount
$363,869.00
Summary
This is an international, multicentre study that will, for the first time, prospectively measure the curative potential of radiotherapy in localised marginal zone lymphoma (MZL). Most MZL arises in mucosa-associated lymphoid tissue (MALT), either in the stomach or in a range of other organs such as salivary glands, the tissues around the eye or the thyroid. Many stomach MALT lymphomas are caused by infection with Helicobacter Pylori. This infection can also be associated with non-gastric MALT ly ....This is an international, multicentre study that will, for the first time, prospectively measure the curative potential of radiotherapy in localised marginal zone lymphoma (MZL). Most MZL arises in mucosa-associated lymphoid tissue (MALT), either in the stomach or in a range of other organs such as salivary glands, the tissues around the eye or the thyroid. Many stomach MALT lymphomas are caused by infection with Helicobacter Pylori. This infection can also be associated with non-gastric MALT lymphomas, but the association has never been prospectively studied. Chlamydia Psittaci infection can cause MALT lymphoma in the orbit. The management of localised MZL outside the stomach is controversial and there have been no large prospective studies of any of the commonly-used treatments (radiotherapy, chemotherapy, surgery). No prospective studies have looked at the role of infection with Helicobacter pylori or the role of autoantibodies in these diseases. Radiotherapy is the best-characterised therapy in the literature and appears to have a high cure rate with low toxicity. The disease seems exquisitely radiosensitive. Management of localised MZL in Australia can be ad hoc and we have often seen patients who have undergone unnecessary mutilating surgery or ineffective chemotherapy. It has been reported that localised non-gastric MZL (stage I and II) can be cured with radiotherapy in a high percentage of patients (usually >70%) in retrospective studies from large centres such as Princess Margaret Hospital in Toronto. Workers from that centre will participate in this study. This study will: Prospectively report efficacy and toxicity for radiotherapy in MZL for the first time Definitively document Helicobacter Pylori status in all cases and Chlamydia status in orbital cases Provide a gold standard against which to compare new therapies This study won the award for the most highly supported study in its year at the TROG annual scientific meeting.Read moreRead less
Vaccinating Against Helicobacter Pylori-induced Gastric Cancer
Funder
National Health and Medical Research Council
Funding Amount
$1,088,714.00
Summary
Stomach cancer is the 3rd leading cause of cancer-related deaths. Most stomach cancers result from inflammation due to Helicobacter pylori infection. Most infections are treatable with antibiotics but this does not protect against cancers that develop before infection is diagnosed. Normal vaccine approaches aimed at this infection have been unsuccessful. We have identified a new approach for protecting against stomach cancer by preventing inflammation; this project aims to develop this vaccine.
The Role Of The Cytosolic Pathogen Recognition Molecule Nod1 In Host Responses To Helicobacter Pylori Infection.
Funder
National Health and Medical Research Council
Funding Amount
$82,753.00
Summary
Helicobacter pylori is the causative agent of gastric ulcers and cancer. However, many questions remain unanswered regarding how H. pylori causes gastric disease. We have recently identified the receptor Nod1 as an important factor in the ability of this bacterium to induce inflammation. The major aim of this project is to investigate the role of Nod1 in the innate and adaptive immune responses to this pathogen.
Characterising The Role Of IL-37 In The Development Of H. Pylori Infection.
Funder
National Health and Medical Research Council
Funding Amount
$641,992.00
Summary
H. pylori infects more than 50% of the worlds population and is the causative agent of gastric cancer, the second leading cause of cancer-related deaths worldwide. Infection with H. pylori occurs during early childhood and persists within the host for life, causing immune suppression and therefore preventing clearance of the infection from the individual. We will examine a newly identified mechanism of H. pylori-induced immune suppression in humans in an attempt to provide novel treatments.
Structural Basis For Helicobacter Pylori Adhesion To Host Epithelial Cells
Funder
National Health and Medical Research Council
Funding Amount
$665,328.00
Summary
The aim of this grant is to understand how the bacteria that cause gastric cancer and ulcers interact with the cells that line the stomach. This information will be used to develop new treatments to combat disease.
Understanding The Impact Of Epigenetic Gene Regulation On Helicobacter Pylori Persistence And Pathogenesis.
Funder
National Health and Medical Research Council
Funding Amount
$757,896.00
Summary
Helicobacter pylori is a highly persistent pathogen and remains a significant problem worldwide, causing gastritis, peptic ulcer disease and gastric cancer. This project will increase our understanding of how H. pylori infection persists for the life of its human host and will provide knowledge that is critical in developing new strategies for preventing these infections.
Helicobacter Pylori Acquisition Of Host Cholesterol: Its Role In Inflammation
Funder
National Health and Medical Research Council
Funding Amount
$417,380.00
Summary
The bacterium Helicobacter pylori is present in the stomach of half the world’s population. It is estimated that 20% of these people will suffer from peptic ulcer disease, whereas as many as 1% will develop stomach cancer later in life. The common factor in all these diseases is the inflammation induced by the bacterium. This project will investigate a new mechanism by which H. pylori causes inflammation and how dietary cholesterol may be involved in this process.