http://sciencenordic.com/tumours-are-mo ... y-believed "That observation and the mechanism it describes, called angiogenesis, fed great optimism in cancer research. Enormous amounts of time and money were spent studying this idea, and new cancer medicines were developed to affect the development of blood vessels that feed tumours.
The enthusiasm for this approach at that time was similar to how we look at immunotherapy today,” said Tom Dønnem, a professor at the Arctic University of Norway. “Now we think that immunotherapy will revolutionize cancer treatment. That’s what we once thought about angiogenesis inhibitors.
Dønnem is the first author of a review article recently published in Nature Reviews Cancer. The article, written with colleagues from the University of Oxford and other leading researchers in the field, shows that this theory is actually partly wrong."