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Paul Scherrer Institut PSI OVGA 405 5232 Villigen PSI, Switzerland http://www.psi.ch
Contact Ms Dr. Andrea Prota +41 56 310 51 60
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Paul Scherrer Institut PSI

Wie stabilisierte Zellfasern Krebszellen am Teilen hindern

Detaillierte Strukturinformation liefert Grundlage für neue Medikamente

(PresseBox) (Villigen PSI, )
Die unter dem Schlagwort "Chemotherapie" verwendeten Krebsmedikamente hindern Zellen daran sich zu teilen. Da sich die Zellen in einem wachsenden Tumor häufiger teilen als andere, werden die Tumorzellen durch Chemotherapeutika besonders stark geschädigt. Forscher des Paul Scherrer Instituts und der ETH Zürich haben nun für eine bestimmte Klasse solcher Medikamente den genauen Wirkmechanismus aufgeklärt. Diese Medikamente "frieren" die Beweglichkeit der Mikrotubuli - in allen Zellen auftretende feine Fasern - ein und verhindern so, dass die neugebildeten Chromosomen auf die neuen Tochterzellen verteilt werden. So vereiteln sie die Zellteilung. Die Forscher haben im Detail gezeigt, wie die Wirkstoffe in einer Vertiefung
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