کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2113251 | 1084453 | 2012 | 8 صفحه PDF | دانلود رایگان |
Multidrug resistance (MDR) represents a major obstacle in the successful treatment of breast cancer. The MDR1 gene is a direct target of the Wnt/β-catenin signaling pathway, which controls tumor development. Overexpression of P-glycoprotein, encoded by the MDR1 gene, is one of the most common causes of MDR. We found that the Frizzled 1 (FZD1) protein, which is an essential component of the Wnt/β-catenin pathway, is overexpressed in the multidrug resistant breast cancer cell subline MCF-7/ADM, coincident with MDR1/P-gp. FZD1 silencing induced down-regulation of MDR1/P-gp, restored sensitivity to four chemotherapy drugs, and significantly decreased cytoplasmic and nuclear β-catenin levels. FZD1 appears to mediate multidrug resistance by regulating the Wnt/β-catenin pathway.
Journal: Cancer Letters - Volume 323, Issue 1, 1 October 2012, Pages 106–113