Light 'promising' in cancer fight (BBC) {actually, light-sensitive chemicals}

[eppur_se_muova]

By James Gallagher
Health reporter, BBC News

A study, published in Nature Medicine, showed how a drug could be created which sticks to tumours, but is then only activated when hit by specific waves of light.

It means a treatment can be highly targeted and not damage the surrounding tissue.

A cancer charity said the treatment showed early promise.

Currently, treatments for cancer can be separated into three categories: blasting it with radiation, surgically removing a tumour or using drugs to kill the cancerous cells. All have side effects and scientists are trying to come up with more precise therapies.

In this study, researchers at the National Cancer Institute, Maryland, used an antibody which targets proteins on the surface of cancerous cells.
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more: http://www.bbc.co.uk/news/health-15571711