P53 : the gene that cracked the cancer code / Sue Armstrong.

All of us have lurking in our DNA a most remarkable gene. Its job is straightforward - to protect us from cancer. This gene - known simply as p53 - constantly scans our cells to ensure that they grow and divide without mishap, as part of the routine maintenance of our bodies. If a cell makes a mistake in copying its DNA as part of its process of division, p53 stops it in its tracks, sending in the repair team before allowing the cell to carry on dividing. If the mistake is irreparable and the rogue cell threatens to grow out of control (as happens in cancer), p53 commands the cell to commit suicide. Cancer cannot develop unless p53 itself is damaged and malfunctioning. This book reveals the search for this gene, as well as the excitement of the hunt for new cures - the hype, the lost opportunities, the blind alleys and the breakthroughs.