Harmless Soil-Dwelling Bacteria Successfully Kill Cancer, University of York Study

A bacterial strain that specifically targets tumours could soon be used as a vehicle to deliver drugs in frontline cancer therapy. The strain is expected to be tested in cancer patients in 2013, says a scientist at the Society for General Microbiology's Autumn Conference at the University of York. The therapy uses Clostridium sporogenes -- a bacterium that is widespread in the soil. Spores of the bacterium are injected into patients and only grow in solid tumours, where a specific bacterial enzyme is produced. An anti-cancer drug is injected separately into the patient in an inactive 'pro-drug' form.