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The global gene expression and DNA methylation of genes in adriamycin-resistant human breast cancer cells (MCF-7/ADM cells) are similar to those in paclitaxel-resistant MCF-7 cells (MCF-7/PTX) and are significantly different from those in wild-type MCF-7 cells. DNA methylation is associated with chemoresistance in breast cancer and changes the characteristics of chemoresistant and chemosensitive cells...
To investigate the role of microRNAs in the development of chemoresistance and related epithelial–mesenchymal transition (EMT), we examined the effect of miR-489 in adriamycin (ADM)-resistant human breast cancer cells (MCF-7/ADM). MiR-489 was significantly suppressed in MCF-7/ADM cells compared with chemosensitive parental control MCF-7/WT cells. Forced-expression of miR-489 reversed chemoresistance...
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