Take a virtual trip inside the human body at a cellular level to see how blood vessels grow to feed tumors. Stopping this growth is one of the primary lines of attack scientists take in trying to defeat diseases, cancer in particular.

Wired.com got an exclusive early look at Amgen's new website, launched Wednesday, which aims to explain blood-vessel growth, or angiogenesis, and how it relates to cancer. The video above is just the first of 15 produced by Amgen that explore various aspects of angiogenesis and potential ways to control it in beautiful, lifelike videos.

Angiogenesis is critical for tumors to grow beyond a few millimeters, and for cancer to metastasize to other parts of the body. Cancer cells use the blood vessels as conduits to other areas of the body, where a single cell can set up camp and begin forming a new tumor. Stop angiogenesis, and you stop cancer.

Video Takes You on 3-D Virtual Trip Into Growing Tumor