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Cardiff Breast Unit, Velindre NHS Trust, Cardiff CF14 2 TL, UK
(Requests for offprints should be addressed to Peter J Barrett-Lee; Email: Peter.Barrett-Lee{at}velindre-tr.wales.nhs.uk)
This paper was presented at the 1st Tenovus/AstraZeneca Workshop, Cardiff (2005). AstraZeneca has supported the publication of these proceedings.
Adjuvant chemotherapy has been shown to provide survival benefits in patients with breast cancer, but some patients still relapse despite this. There is therefore a need for molecular markers present within the primary tumour that can predict for chemotherapy sensitivity or resistance. Until now, no single marker has emerged into routine clinical practice, but several candidate pathways are being extensively investigated. This paper summarises the current status of growth factor singalling and p53 function in this context. The data on human epidermal growth factor receptor-2, topoisomerase II and p53 expression in a variety of breast cancer treatment settings are discussed.
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