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Deutsches Krebsforschungszentrum Im Neuenheimer Feld 280 69120 Heidelberg, Germany http://www.dkfz.de
Contact Ms Dr. Sibylle Kohlstädt +49 6221 422854
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Deutsches Krebsforschungszentrum

Wie Tumoren die Entstehung von Metastasen unterdrücken

(PresseBox) (Heidelberg, )
Warum treten Metastasen häufig erst dann auf, wenn der ursprüngliche Krebsherd chirurgisch entfernt worden ist? Wissenschaftlerinnen und Wissenschaftler vom Deutschen Krebsforschungszentrum und von der Medizinischen Fakultät Mannheim der Universität Heidelberg veröffentlichen nun einen Erklärungsansatz für das Phänomen. Sie konnten einen Botenstoff der Krebszellen identifizieren, der lokal das Wachstum des Primärtumors fördert. Im Blut wird der Botenstoff in zwei Fragmente gespalten, von denen eines die Metastasierung unterdrückt. Tumortragende Mäuse, die mit dem Metastasen-hemmenden Fragment behandelt wurden, überlebten den Krebs länger als unbehandelte Artgenossen.

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