Cancer-killing Viruses Influence Tumor Blood-vessel Growth

Wednesday, June 11, 2008 - 09:35 in Health & Medicine

Viruses genetically designed to kill cancer cells offer a promising strategy for treating incurable brain tumors, but the body often eliminates the viruses before they can eliminate the tumor. This animal study helps explain why this happens. The research shows that as the viruses destroy tumor cells, the cells release proteins that stimulate new blood-vessel growth to the tumor. These vessels bring immune cells that eradicate the viruses and actually stimulate regrowth of the tumor.

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