Published in Cancer Weekly, February 22nd, 1999
The closely watched developments involve a natural protein called endostatin. It and a sister protein called angiostatin both work - at least in mice - by blocking tumors' ability to sprout new blood vessels. This makes cancer fall dormant or disappear altogether in lab animals. But no one knows if the same thing will happen in people.
The two proteins have been the subject of a roller coaster of speculation ever since an enthusiastic front-page story in...
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