Smoking may limit body's ability to fight dangerous form of skin cancer
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Melanoma patients with a history of smoking cigarettes are 40 per cent less likely to survive their skin cancer than people who have never smoked, according to a new report funded by Cancer Research UK.

The study of more than 700 melanoma patients mainly from the north of England – and published today in Cancer Research – provides evidence to suggest that smoking may blight the immune response against melanoma and reduce survival.

These new findings from researchers at the University of Leeds provide another reason why people should try to give up smoking, particularly those who have been diagnosed with malignant melanoma – the most dangerous form of skin cancer.

The scientists found that overall, smokers were 40 per cent less likely to survive their disease than people who have never smoked within a decade after their diagnosis. In a subset of 156 patients who had the most genetic indicators for immune cells, smokers were around four and a half times less likely to survive from the cancer than people who had never smoked.

Given that reduced survival was found to be greatest for smokers in the group with most indicators of immune cells, the researchers think that

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