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Cancer researchers seek safe reduction of radiotherapy
Date:10/2/2007

University of Manchester scientists will discuss their research aimed at reducing the side effects of radiotherapy without decreasing its effectiveness at the National Cancer Research Institute conference in Birmingham today (Tuesday 2 October 2007).

Around half of patients receive radiotherapy as part of their cancer treatment but the dose is limited by the possibility of causing side effects (toxicity) to the normal tissues and organs that surround the tumour. Some patients are more likely to experience these side effects than others: that is, there is an individual variation in tissue response. Some patients will be very sensitive.

Dr Catharine West, of the University's Cancer Studies research group, and Dr Neil Burnet, of the University of Cambridge, are leading a large multi-centre UK study designed to identify the common genetic variations that are associated with such side effects. The study - Radiogenomics: Assessment of Polymorphisms for Predicting the Effects of Radiotherapy (RAPPER) - is funded by Cancer Research UK and aims to extract DNA from the blood samples of 2,200 patients with a variety of cancers.

Dr West explains: "This is a very exciting development in cancer research. Genotyping studies should provide a means of identifying radiosensitive patients and lead to a greater individualisation of radiation dose prescription to optimise tumour control while reducing toxicity."

Dr West and her team are also involved in a study of patients with soft tissue sarcoma (cancer in the muscles), a rare cancer that accounts for approximately 1% of adult cancers with around 1,200 cases in the UK each year, again funded by Cancer Research UK.

VORTEX - led by Dr Martin Robinson at the University of Sheffield - is a randomised trial to assess if reducing post-operative radiotherapy in patients with soft tissue sarcoma (cancer of the muscle) increases their limb function without compromising the treatment. The Manch
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Contact: Mikaela Sitford
Mikaela.Sitford@manchester.ac.uk
07-768-980-942
University of Manchester
Source:Eurekalert

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