Reprogrammed blood vessels promote cancer spread

Tumor cells use the bloodstream to spread in the body. To reach the blood, they first have to pass the wall of the vessel. Scientists have now identified a trick that the cancer cells use: They activate a cellular signal in the vessel lining cells. This makes the passage easier and promotes metastasis. In experiments with mice, the researchers were able to block this process using antibodies. (Mehr in: Cancer News — ScienceDaily)