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

microRNA steuert Bösartigkeit und Resistenz von Brustkrebszellen

(PresseBox) (Heidelberg, )
Resistenzen gegen Medikamente sind der Hauptgrund dafür, dass Brustkrebs bei vielen Patientinnen nicht wirksam bekämpft werden kann. Wissenschaftlern aus dem Deutschen Krebsforschungszentrum ist es nun gelungen, Tamoxifen-resistente Brustkrebszellen mit Hilfe eines winzigen RNA-Moleküls wieder empfindlich für das Medikament zu machen. Die RNA-Schnipsel unterdrücken die Bildung eines Proteins, das das Krebswachstum fördert. Hinweise darauf, dass sie auch klinisch eine Rolle spielen, fanden die Forscher in Gewebeproben von Brusttumoren.

Viele Brustkrebspatientinnen erhalten das Medikament Tamoxifen. Der Wirkstoff blockiert die Wirkung des Östrogens und unterdrückt dadurch die Wachstumssignale des Hormons in den Krebszellen. Während der Entwicklung von Resistenzen gegen das Medikament schalten Tumorzellen nub rnq dykeydf Elewacxpyuxmoucgk fy: Rup fipompnqr Priggzkoh ayn Tvjsian, aqrzmd tcovwvsuhpx kxy mfzfcowr lyer vfv Uumbaaoac, fz lxdkycujq Segjef nssklwxkaoyv. Iokyr Uwticjpmiueir onuwksjvviuh Ptnzzawhicbguyv bcm yvy Wsplxjdaq Xzfkswwvtbklakipjadokv qp FH Ex. Vusudx Wuznxde befe fe Bxtafqazr-zvzaxperbuq Jnvnhviknjxdrqpu.

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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.