Zusammenfassung
Bereits frühe Untersuchungen zeigten einen Überlebensvorteil in Subgruppen durch die
Bisphosphonat-Gabe bei metastasierten Patientinnen. Beim ossär metastasierten Mammakarzinom
konnte durch die monatliche Zoledronat-Gabe eine Reduktion der Mortalität um 32 %
erreicht werden [1 ]. Der vermutete Mechanismus besteht in der Veränderung des Mikromilieus von Tumorzellen,
in apoptoseinduzierenden, antiangiogenetischen und antiadhäsiven Effekten [2 ], [3 ], [4 ], [5 ], [6 ], [7 ]. Hinzu kommt, dass Zoledronat die Interaktion zwischen Tumorzelle und Knochen bzw.
Knochenmark stört. Der Knochenstoffwechsel wird herunterreguliert, damit verschlechtern
sich die Wachstumsbedingungen in einem Prädilektionsort der Metastasierung. All diese
Effekte scheinen zunächst vom Rezeptorstatus und der Differenzierung der zugrunde
liegenden Mammakarzinomerkrankung unabhängig zu sein. Beim hormonrezeptorpositiven
Mammakarzinom besteht in der adjuvanten Behandlung mit Zoledronat zunehmende Datensicherheit
bezüglich der Progress- und Rezidivprophylaxe unabhängig vom Menopausestatus. Obwohl
Zoledronat derzeit in der adjuvanten Versorgung des Mammakarzinoms außerhalb der Zulassung
eingesetzt wird, scheint diese Therapie über Studien hinaus bereits im klinischen
Alltag etabliert zu sein. In der besonderen therapeutischen Situation beim triple-
oder hormonrezeptornegativen Mammakarzinom mit hohem Rezidivrisiko wird zunehmend
im Rahmen von Studien, aber auch in einzelnen Fällen ebenfalls Zoledronat eingesetzt.
Abstract
Schlüsselwörter
triple‐negatives Mammakarzinom - Zoldronsäure - adjuvante Therapie - Falldiskussionen
- Therapieempfehlung
Key words
triple negative breast cancer - zoledronate - adjuvant therapy - case discussion -
therapy recommendation
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Erstpublikation
DOI: 10.1055/s-0030-1247430 Senologie 2010; 7: 213–217 © Georg Thieme Verlag KG Stuttgart · New York · ISSN 1611-6453
Dr. S. Paepke, Ltd. OA Senologie
IBZ der Technischen Universität Roman Herzog Comprehensive Cancer Center
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81675 München
eMail: stefan.paepke@lrz.tum.de