Rethinking cancer's ability to spread
8 December 2008
This research was published in the journal Nature on 4 December 2008.
Some cancer cells leave a tumour and cause cancer in other parts of the body.
Image: Elsa Quintana and Mark Shackleton
Melanoma tumours are the most serious form of skin cancer.
Image: Timothy Johnson
Previous studies had only partially knocked out the mice's immune systems.
Sean Morrison, cancer researcher, University of Michigan.
Image: University of Michigan
Henry Scowcroft, cancer treatment scientist, Cancer Research UK.
Image: Cancer Research UK