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Genetic Dissection Of The Gp130 Signalling Network; Implications In The Initiation Of Gastric Cancer
Funder
National Health and Medical Research Council
Funding Amount
$447,500.00
Summary
Stomach cancer is a major health problem in the world. It is the second most common cancer and the second leading cause of death from cancer, behind lung cancer. In fact, approximately 10% of all new reported cancer cases world-wide are stomach cancer. The risk of stomach cancer increases with age, with risk rising progressively and peaking at about 60 years of age. Men are affected twice as often as women Like all cancers, stomach cancer results from the progressive acquisition of mutations in ....Stomach cancer is a major health problem in the world. It is the second most common cancer and the second leading cause of death from cancer, behind lung cancer. In fact, approximately 10% of all new reported cancer cases world-wide are stomach cancer. The risk of stomach cancer increases with age, with risk rising progressively and peaking at about 60 years of age. Men are affected twice as often as women Like all cancers, stomach cancer results from the progressive acquisition of mutations in genes that normally ensure a balance between cell growth and cell death. Mutations which predispose individuals to stomach cancer accumulate in the epithelial cells that provide the lining to the stomach. The progression of stomach cancer proceeds through a number of distinct anatomical stages which can be easily recognised by pathologists. Mutations in a number of genes (known as Kirsten-ras, p53) are commonly found in stomach tumours. Moreover, some of the mutations are highly associated with distinct stages of tumour development. As yet, however, we have no real insights into how these mutations cooperate with each other to produce full-blown (malignant) stomach cancer. In our proposal, we are aiming to establish stomach cancer in mice. Our approach will be to use an existing animal model which is predisposed to stomach cancer. We will progressively introduce mutant genes into stomach epithelial cells and study how they cooperate with each other to produce benign, and ultimately, malignant tumours in the stomach of mice. This will help us to understand which mutant genes are required for each stage in tumour development and may provide more rational approaches to stomac cancer screening and treatment.Read moreRead less
Development Of Novel EGFR Tyrosine Kinase Inhibitors For The Management Of Glioma, Head And Neck And Other Cancers
Funder
National Health and Medical Research Council
Funding Amount
$196,527.00
Summary
Abnormalities in EGF-EGFR family signalling pathways have been implicated in many human cancers including glioma, squamous cell carcinome of the head and neck, colon, ovary and prostate, and are associated with poor clinical prognosis, non-responsiveness to chemotherapy, and decreased survival. Inhibitors of these pathways would therefore be useful anti-cancer pharmaceuticals. This proposal outlines experiments aimed at understanding the role of the individual EGFR family members in controlling ....Abnormalities in EGF-EGFR family signalling pathways have been implicated in many human cancers including glioma, squamous cell carcinome of the head and neck, colon, ovary and prostate, and are associated with poor clinical prognosis, non-responsiveness to chemotherapy, and decreased survival. Inhibitors of these pathways would therefore be useful anti-cancer pharmaceuticals. This proposal outlines experiments aimed at understanding the role of the individual EGFR family members in controlling a complex signalling network, and the development of novel small molecule inhibitors of these pathways which are specific for individual EGFR family members and which should prove effective in the management of many forms of cancer. Additionally, the potential synergy of these inhibitors in combination therapy with other anti-cancer drugs and reagents which induce cell death will be investigated. These small molecule pharmaceuticals could easily be produced commercially, and taken into clinical trials, in Australia.Read moreRead less
Therapeutic Strategies In Epithelial Cancer Through Signalling Inhibition Of The Epidermal Growth Factor Receptor.
Funder
National Health and Medical Research Council
Funding Amount
$136,250.00
Summary
The growth of cancer cells is regulated by many factors, including the presence of growth receptors on the surface of cancer cells. The epidermal growth factor receptor (EGFR) is present in some normal tissues, but is highly expressed on many common cancers, including brain, breast, lung, head and neck, colon and prostate cancer. We are developing a number of potential therapeutic compounds that act by inhibiting the EGFR in cancer cells. These compounds include a novel monoclonal antibody that ....The growth of cancer cells is regulated by many factors, including the presence of growth receptors on the surface of cancer cells. The epidermal growth factor receptor (EGFR) is present in some normal tissues, but is highly expressed on many common cancers, including brain, breast, lung, head and neck, colon and prostate cancer. We are developing a number of potential therapeutic compounds that act by inhibiting the EGFR in cancer cells. These compounds include a novel monoclonal antibody that binds to EGFR and inhibits its function, and a small molecule that binds to a portion of the EGFR inside cancer cells and also inhibits function. Both of these compounds prevent tumour growth in laboratory studies. This project will examine the mechanisms of action of these compounds, and explore ways to improve their anti-cancer effect. We have also shown that combining these compounds with other therapeutics eg chemotherapy markedly enhances their anti-cancer effect. We will further examine the mechanisms of these effects, and also determine if radiotherapy has additive anti-cancer effects. These studies will provide a basis for improved therapies for cancers overexpressing the EGFR.Read moreRead less