TREATMENT Anti-angiogenesis Factors
HOW THEY WORK A growing tumor requires plenty of nutrients, and to make sure it gets them the tumor secretes substances that stimulate the growth of new blood vessels. A number of agents can block this process--at least in animals.
STATUS See chart below
[TREATMENT] Anti-metastatic Factors
[HOW THEY WORK] What kills most cancer patients is not the primary tumor but its metastatic spread. Scientists have identified a class of enzymes that enables cancer cells to enter the bloodstream by dissolving tissue and boring holes through capillary walls. New drugs could keep cancer cells...