Title : A novel chemical, STF-083010, reverses tamoxifen-related drug resistance in breast cancer by inhibiting IRE1/XBP1.

Pub. Date : 2015 Dec 1

PMID : 26517687






6 Functional Relationships(s)
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1 A novel chemical, STF-083010, reverses tamoxifen-related drug resistance in breast cancer by inhibiting IRE1/XBP1. Tamoxifen X-box binding protein 1 Homo sapiens
2 In particular, human X-box binding protein-1(XBP1), a transcription factor which participates in UPR stress signaling, is reported to correlate with poor clinical responsiveness to tamoxifen. Tamoxifen X-box binding protein 1 Homo sapiens
3 In particular, human X-box binding protein-1(XBP1), a transcription factor which participates in UPR stress signaling, is reported to correlate with poor clinical responsiveness to tamoxifen. Tamoxifen X-box binding protein 1 Homo sapiens
4 In this study, we develop a tamoxifen-resistant MCF-7 cell line by treating the cell line with low concentration of tamoxifen, and we find that XBP1 is indeed up-regulated at both the mRNA and protein levels compared to normal MCF-7 cells. Tamoxifen X-box binding protein 1 Homo sapiens
5 In this study, we develop a tamoxifen-resistant MCF-7 cell line by treating the cell line with low concentration of tamoxifen, and we find that XBP1 is indeed up-regulated at both the mRNA and protein levels compared to normal MCF-7 cells. Tamoxifen X-box binding protein 1 Homo sapiens
6 STF-083010, a novel inhibitor which specifically blocks the XBP1 splicing, reestablishes tamoxifen sensitivity to resistant MCF-7 cells. Tamoxifen X-box binding protein 1 Homo sapiens