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A short and sweet diagnosis for cancer?
Date:7/9/2008

In order to provide the most effective treatments for cancer patients, it is essential to develop methods of sensitive and specific early detection of the disease. A team of scientists from the NIBRT Dublin-Oxford Glycobiology Laboratory at UCD has developed a system which aims to pinpoint potential "biomarkers" of early forms of the disease. They do this by looking at the structures of specific sugar molecules which are attached either to proteins made by cancerous cells or to proteins involved in the host response. It is hoped that the availability of such cancer biomarkers would also allow disease progression and response to therapy to be monitored more accurately than is currently possible. Professor Pauline Rudd, who is leading the team, will be presenting some of their results on Thursday 10th July at the Society for Experimental Biology's Annual Meeting in Marseille [Session C4].

It is known that cancer cells not only have different sets of proteins from normal human cells, but that their proteins have changes in the types and numbers of sugar molecules that are attached to them. Dr Rudd and her colleagues believe that being able to detect these changes holds the key to developing a new approach for diagnosing cancer. "We have found that there are alterations in sugars attached to proteins in blood serum from all cancers we have looked at, and some of these appear to be early markers of the disease processes. What is more, we have been able to isolate several sugar-linked variants of particular proteins which are associated with different types of cancer, including prostate, pancreatic and ovarian and breast cancers," she reveals. "In the long term, we envisage that by finding more specific sugar variants, we will be able to use combinations of these as biomarkers to allow very accurate early diagnosis of particular cancers". These techniques could act alongside or even replace physical methods, such as scanning, which are less depen
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Contact: Holly Astley
hma25@cam.ac.uk
44-779-285-5259
Society for Experimental Biology
Source:Eurekalert  

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