TY - T1 - Inhibition of O-GlcNAc transferase activates tumor-suppressor gene expression in tamoxifen-resistant breast cancer cells SN - / UR - http://hdl.handle.net/10138/321575 T3 - A1 - Barkovskaya, Anna; Seip, Kotryna; Prasmickaite, Lina; Mills, Ian G; Moestue, Siver A; Itkonen, Harri M. A2 - PB - Y1 - 2020 LA - eng AB - In this study, we probed the importance of O-GlcNAc transferase (OGT) activity for the survival of tamoxifen-sensitive (TamS) and tamoxifen-resistant (TamR) breast cancer cells. Tamoxifen is an antagonist of estrogen receptor (ERa), a transcription factor expressed in over 50% of breast cancers. ERa-positive breast cancers are successfully treated with tamoxifen; however, a significant number of patients develop tamoxifen-resistant disease. We show that in vitro development of tamoxifenresistanc... VO - IS - SP - OP - KW - DATABASE; DRIVEN; GLCNACYLATION; MECHANISMS; METABOLISM; MYC; N-ACETYLGLUCOSAMINE; OGT ACTIVITY; PATHWAY; 3111 Biomedicine N1 - PP - ER -