The Enemy Within

One in three of us will develop cancer and many will die from it. In response, medicine is making dramatic advances in the treatment of the disease which include the use of the poisonous African bush willow plant and gene therapy whereby the cancer cells are prevented from dividing. However, one of the most important ways to fight cancer is with the body's own superhuman powers - either with the an inherited knack to repair faulty genes or with the body's own immune system which can be boosted to attack alien invaders with a 'cancer vaccine'. Production of this programme was assisted by Dr Gordon Rustin of the Gray Laboratory - a centre for radiation research applied to cancer treatment.

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S01E05 - Killers Into Cures