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Queen's University Belfast makes significant cancer breakthrough
Date:8/8/2012

A major breakthrough by scientists at Queen's University Belfast could lead to more effective treatments for throat and cervical cancer. The discovery could see the development of new therapies, which would target the non-cancerous cells surrounding a tumour, as well as treating the tumour itself.

Researchers at Queen's Centre for Cancer Research and Cell Biology have found that the non-cancerous tissue, or 'stroma', surrounding cancers of the throat and cervix, plays an important role in regulating the spread of cancer cells.

The discovery opens the door for the development of new treatments which, by targeting this non-cancerous tissue, could prevent it being invaded by neighbouring cancer cells.

The research, led by Professor Dennis McCance, has just been published in the European Molecular Biology Organization Journal. Professor McCance said: "Cancer spreads as the result of two-way communication between the cancer cells in a tumour and the non-cancerous cells in the surrounding tissue.

"We already know that cancer cells are intrinsically programmed to invade neighbouring healthy tissue. But the cells in the non-cancerous tissue are also programmed to send messages to the cancer cells, actively encouraging them to invade. If these messages sent from the healthy tissue to the tumour - can be switched-off, then the spread of the cancer will be inhibited.

"What we have discovered is that a particular protein in non-cancerous tissue has the ability to either open or close the communication pathway between the healthy tissue and the tumour. When the Retinoblastoma protein (Rb) in non-cancerous tissue is activated, this leads to a decrease in factors that encourage invasion by cancer cells. And so, the cancer doesn't spread."

The Rb protein is found in both cancer and non-cancerous tissue. Its importance in regulating the growth of cancer cells from within tumours is already well-documented, but this is the first time scien
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Contact: Anne-Marie Clarke
comms.officer@qub.ac.uk
44-028-909-75320
Queen's University Belfast
Source:Eurekalert

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