Scientists believe they may have finally discovered why cancer spreads, which could be vital in developing a cure.

Scientists believe they may have finally discovered why cancer spreads, which could be vital in developing a cure. In a major breakthrough whichcould save millions of lives, their study has identified a mechanism known as the ‘chase and run’ effect, where diseased and healthy cells follow each other around the body. The discovery by researchers at University College London may lead to a revolutionary therapy that blocks the action and keeps tumours in one place. The researchers claim that it will be 'relatively easy' to stopthe 'chase and run' effect. Cancer claims more than 150,000 lives each year in theUK but study spokesman Professor Roberto Mayor said:‘Most deaths are not due to the formation of the primary tumour. ‘Instead people die from secondary tumours originatingfrom the first malignant cells, which are able to travel and colonise vital organs of the body such as the lungs or thebrain.’ He added: ‘This happens because the cells get healthy ones to follow them. Nobody knew how this happened, and now we believe we have uncovered it. ‘If that is the case it will be relatively easy to develop drugs that interfere with this interaction.’ The study, published in Nature Cell Biology, used two types of embryonic cells to simulate the roles of cancerous and healthy cells. What do you guys think?..