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A new measure for the malignancy of melanoma
Date:3/12/2009

lly found to produce both soluble Ang2 and the matching receptor, Tie2, on their own cell membrane. As a result, they are theoretically capable of activating themselves. In order to check this, researchers switched off the Ang2 production in melanoma cells using a genetic trick. Test systems in the culture dish subsequently revealed that the skin cancer cells had lost their ability to migrate. The migration tendency of cancer cells is regarded as important information about their ability to invade other tissue in the body and metastasize.

The tumor appears to seize the signaling system of vascularization and, thus, to strengthen its malignant properties. "Ang2 is a very promising candidate," Hellmut Augustin comments on the results, both as a biomarker for better monitoring of disease progression and as a target structure for therapy measures." Blocking Ang2 might not only attack the tumor's blood supply, but also reduce its malignant growth.


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Contact: Dr. Sibylle Kohlstdt
s.kohlstaedt@dkfz.de
Helmholtz Association of German Research Centres
Source:Eurekalert

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