Tuesday, May 16, 2006

Target cancer cells
An engineered virus can track down and infect the most common and deadly form of brain cancer, and then kill tumour cells by forcing them to devour themselves, according to researchers at the University of Texas. This virus uses telomerase, an enzyme found in 80 per cent of brain tumours, as a target. Once the virus enters the cell, it needs telomerase to replicate. Normal brain tissue does not have telomerase, so this virus replicates only in cancer cells.

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