Article
Heterogeneity of angiogenic activity in a human liposarcoma: a proposed mechanism for "no take" of human tumors in mice.
Journal of the National Cancer Institute - 18 Jul 2001
Achilles E G, Fernandez A, Allred E N, Kisker O, Udagawa T, Beecken W D, Flynn E, Folkman J
Abstract excerpt
BACKGROUND: Tumor cells are known to be heterogeneous with respect to their metastatic activity, proliferation rate, and activity of several enzymes. However, little is known about the heterogeneity of tumor angiogenic activity. We investigated whether heterogeneity of angiogenic activity could be responsible for the well-known observation of "no take" of human tumors transplanted into immunodeficient mice....
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