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KRAS- And BRAF-Mediated Methylation Signatures In Colorectal Cancers And Polyps
Funder
National Health and Medical Research Council
Funding Amount
$457,076.00
Summary
Bowel cancer is one of the most common cancers affecting Australians. We hypothesise that there are different types of bowel cancer depending on different genes that can be inactivated abnormally, and these subgroups have different clinical features and responses to therapy. We aim to identify the major gene changes that characterise these subgroups, which will in the future allow the development of gene markers for early detection as well as the possibility of individualised patient therapy.
Wnt And MAPK Signalling In The Determination Of Colorectal Neoplasia Pathway
Funder
National Health and Medical Research Council
Funding Amount
$397,179.00
Summary
Polyps are growths in the bowel that may progress to become a bowel cancer. To prevent the development of cancer, these polyps must be removed by timely colonoscopy. There are many different types of bowel polyps, and these are associated with distinct genetic changes and likelihood of recurrence. This study aims to better understand the DNA changes that occur in bowel polyps and how these impact the clinical features of the polyps. In the future this will aid detection and surveillance strategi ....Polyps are growths in the bowel that may progress to become a bowel cancer. To prevent the development of cancer, these polyps must be removed by timely colonoscopy. There are many different types of bowel polyps, and these are associated with distinct genetic changes and likelihood of recurrence. This study aims to better understand the DNA changes that occur in bowel polyps and how these impact the clinical features of the polyps. In the future this will aid detection and surveillance strategies.Read moreRead less
Studies Of Genetic Predisposition To Develop Serrated Neoplasia In The Colorectum.
Funder
National Health and Medical Research Council
Funding Amount
$308,291.00
Summary
Colorectal Cancer was once believed to develop only from a certain kind of polyp in the colon called the adenoma. However, recently another type of polyp called the hyperplastic polyp was found to also be capable of producing a cancer. In this proposal, we will look at the possibility that the predisposition to form hyperplastic polyps may be inherited in families.
The CpG Island Methylator Phenotype In Colorectal Cancer - Pathways And Precursors
Funder
National Health and Medical Research Council
Funding Amount
$517,272.00
Summary
Bowel cancer is one of the most common cancers affecting Australians. It will affect 1-23 Australians and is a leading cause of cancer-related death. If diagnosed early, bowel cancer is curable with surgery. Unfortunately, symptoms are often not present until the cancer is advanced, when the cure rate is only 55%. It has been recognised that there are different types of bowel cancer depending on different genes which can be inactivated abnormally. We propose that there are at least four differen ....Bowel cancer is one of the most common cancers affecting Australians. It will affect 1-23 Australians and is a leading cause of cancer-related death. If diagnosed early, bowel cancer is curable with surgery. Unfortunately, symptoms are often not present until the cancer is advanced, when the cure rate is only 55%. It has been recognised that there are different types of bowel cancer depending on different genes which can be inactivated abnormally. We propose that there are at least four different subgroups of bowel tumours, and that each of these may have different physical properties and responses to therapy. We aim to better characterise these subgroups to increase our understanding of how normal bowel can change into a small polyp, that may grow into a cancer. Understanding the gene changes leading to each subtype of bowel cancer will in the future allow the development gene markers for early detection as well as the possibility of individualised patient therapy. We are also studying tiny biopsies of normal bowel tissue from patients either with or without polyps, to try to understand the very earliest changes which may underly the development of a bowel polyp.Read moreRead less
CpG Island Methylation In Microsatellite Stable Colorectal Cancers: Epigenetics Or Epiphenomenon?
Funder
National Health and Medical Research Council
Funding Amount
$245,402.00
Summary
For years researchers have known that changes in the sequence of DNA in genes within a cell can lead to cancer, particularly when those changes are passed on to daughter cells. This has lead to massive research interest in the field of cancer genetics. In the last few years, it has become clear that as well as changes in DNA, other more subtle changes can be passed on. These changes, which do not directly involve changes in DNA sequence, are referred to as epigenetic changes. One of the most com ....For years researchers have known that changes in the sequence of DNA in genes within a cell can lead to cancer, particularly when those changes are passed on to daughter cells. This has lead to massive research interest in the field of cancer genetics. In the last few years, it has become clear that as well as changes in DNA, other more subtle changes can be passed on. These changes, which do not directly involve changes in DNA sequence, are referred to as epigenetic changes. One of the most commonly recognised epigenetic changes is known as methylation. Methylation of genes can switch that gene off, meaning that the protein normally made is no longer present in the cell. This can have profound effects on the way cells behave, and importantly may be involved in the development of cancer. In this study, we will look at a group of colorectal cancers that show abnormally high amounts of DNA methylation , to test our hypothesis that these cancers share a common origin that is distinct from the usual type of bowel cancer. The findings will be important, as they may allow us to show that all bowel cancers are not the same, and that simple gene testing may be able to identify the different subtypes. If bowel cancers can be classified according to the way in which they have developed, then this will help us to understand what causes them why some are more aggressive than others, and why some may respond differently to existing or future cancer treatments.Read moreRead less