Angiogenesis Explained

  • By Susan K. Lewis
  • Posted 07.01.08
  • NOVA scienceNOW

Blood vessel growth—or angiogenesis—is critical for developing fetuses and to heal wounds. But it is also an essential element of how cancerous tumors grow and spread. Here, see a step-by-step explanation of how the process works and how anti-angiogenesis therapies might stop tumors before they become deadly.

Launch Interactive Printable Version

See how cancerous tumors recruit their own blood supply in order to grow and how this process might be stopped.



Isabelle Limbach/;
(pregnant belly)
Greg Blomberg/;
(finger with stitches)
Erich Schrempp/Photo Researchers, Inc.;
(blood vessels and tumor)
Courtesy Children's Hospital Boston;
(all illustrations)
© WGBH Educational Foundation/Adapted from original illustration courtesy the Angiogenesis Foundation.

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