- Shikonin reduces tamoxifen resistance through long non-coding RNA uc.57.
Shikonin reduces tamoxifen resistance through long non-coding RNA uc.57.
Oncotarget (2017-11-29)
Chen-Han Zhang, Jue Wang, Lin-Xin Zhang, Yi-Han Lu, Tian-Hao Ji, Lu Xu, Li-Jun Ling
PMID29179465
ABSTRACT
Tamoxifen resistance is a serious problem in the endocrine therapy of breast cancer. Long non-coding RNAs play important roles in tumor development. In this study, we revealed the involvement of lncRNA uc.57 and its downstream gene BCL11A in TAM resistance. Tamoxifen-resistant MCF-7R cells showed lower expression of uc.57 and higher expression of BCL11A mRNA and protein than the parental MCF-7 cells. Moreover, levels of uc.57 mRNA were lower and BCL11A mRNA were higher in breast cancer tissues than in precancerous breast tissues. Shikonin treatment reduced tamoxifen resistance in MCF-7R cells both
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