Ligand-Directed Destruction of Tumor Vasculature

  • Sophia Ran
  • Michael Rosenblum
  • Philip E. Thorpe


Vascular targeting agents (VTA) are designed to bind selectively to components of tumor vasculature and deliver an effector molecule that, directly or indirectly, causes occlusion of the tumor vessels. Blood flow to the tumor thus ceases, resulting in tumor cell death due to the cells’ inability to obtain oxygen and nutrients (Fig. 1, below). This approach has several advantages. Firstly, the tumor endothelial cells are directly accessible to intravenously administrated therapeutic agents, permitting rapid localization of a high percentage of the injected dose. Secondly, since each capillary provides oxygen and nutrients for thousands of tumor cells, occlusion of the vessel has an amplified effect on tumor cells. Thirdly, the outgrowth of mutant endothelial cells lacking the target antigen is unlikely because they comprise a normal, genetically stable cell population. Finally, since tumor vessels share common morphological and biochemical properties, this strategy should be applicable to different tumor types.


Tissue Factor Vascular Endothelial Growth Factor Receptor Tumor Vasculature Tumor Vessel Tumor Endothelial Cell 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 2002

Authors and Affiliations

  • Sophia Ran
    • 1
  • Michael Rosenblum
    • 2
  • Philip E. Thorpe
    • 1
  1. 1.The University of Texas Southwestern Medical Center at DallasDallasUSA
  2. 2.M.D. Anderson Cancer CenterHoustonUSA

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