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Laser Light Blocks Cancer Highway (3 of 3)

Caption: This image shows an inflated lymphatic vessel (purple) filled by human cancer cells (green) that have escaped the primary tumor, implanted in the mouse ear, along the lymphatic vessels. The cancer cells lodged inside the lymphatic vessel have begun stimulating the growth of surrounding blood vessels (red), indicating that the microscopic tumor nodule is rapidly growing into a visible tumor. This image relates to an article that appeared in the Feb. 9, 2011, issue of Science Translational Medicine, published by AAAS. The study, by Dr. Tuomas Tammela at Institute for Molecular Medicine Finland, in Helsinki, Finland and colleagues, was titled, "Photodynamic Ablation of Lymphatic Vessels and Intralymphatic Cancer Cells Prevents Metastasis."

Credit: Image courtesy of Helena Schmidt and Toumas Tammela

Usage Restrictions: Please cite the owner of the image when publishing. This image may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission.

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