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The Crossroads of Special Operations

Tuesday, May 11, 2021

New way to protect against high-dose radiation damage discovered | Science Daily

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Radiotherapy, a common treatment for cancer, is one of the most effective ways to destroy cancer cells and shrink tumours. Around 50% of patients with tumours located in the gastrointestinal cavity (liver, pancreas, colon, prostate, etc) receive this type of treatment, which has increased cancer survival rates over the past decades. However, intensive radiation therapy not only damages tumour cells, but also healthy intestinal cells leading to toxicity in 60% of the treated patients. Whereas reversal of this toxicity is observed after radiotherapy has finished, 10% of the treated patients develop gastrointestinal syndrome, a disease characterised by intestinal cell death resulting in the destruction of the entire intestine and patient death.

Damage of healthy intestinal cells is the main disadvantage of radiotherapy leading to the discontinuation and failure of an efficient cancer treatment, potentially causing a quick tumour recurrence. Now, a discovery published in Science by scientists from the Growth Factors, Nutrients and Cancer Group at the Spanish National Cancer Research Centre (CNIO) might be useful to protect healthy intestinal cells from radiation damage. The consequences of their findings in mice might radically change the way humans manage exposure to high levels of radiation; both for cancer research and treatment as well as for other areas like space explorations, nuclear warfare or nuclear accidents.

Source: New way to protect against high-dose radiation damage discovered | Science Daily

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