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Expression analysis of long non-coding ATB and its putative target in breast cancer.
Breast Disease 2017
BACKGROUND: A long noncoding RNA (lncRNA) activated by transforming growth factor (TGF)-β (lncRNA-ATB) has been recently shown to promote the invasion-metastasis cascade in various types of cancers via upregulation of some targets including ZEB1.
OBJECTIVES: The aim of the present study was to elucidate the expression of lncRNA-ATB and ZEB in breast cancer patients.
METHODS: The expression of these genes was evaluated by real-time reverse transcription polymerase chain reaction in tumor samples form 50 newly diagnosed breast cancer patients as well as their corresponding adjacent non-cancerous tissues (ANCTs). Patients were divided into subsequent groups according to the median lncRNA-ATB expression.
RESULTS: LncRNA-ATB has been shown to be downregulated in about two third of tumor samples compared with their ANCTs.A significant association has been found between ZEB1 expression and Ki-67 status. In addition, we demonstrated a correlation between expression of lncRNA-ATB and ZEB1 in tumor samples and not in ANCTs.
CONCLUSION: Collectively, out data show downregulation of lncRNA-ATB in a significant number of breast tumor tissues compared with ANCTs and imply that lncRNA-ATB might have distinct roles in the pathogenesis of different cancers or even different subtypes of a certain cancer which should be evaluated in future studies.
OBJECTIVES: The aim of the present study was to elucidate the expression of lncRNA-ATB and ZEB in breast cancer patients.
METHODS: The expression of these genes was evaluated by real-time reverse transcription polymerase chain reaction in tumor samples form 50 newly diagnosed breast cancer patients as well as their corresponding adjacent non-cancerous tissues (ANCTs). Patients were divided into subsequent groups according to the median lncRNA-ATB expression.
RESULTS: LncRNA-ATB has been shown to be downregulated in about two third of tumor samples compared with their ANCTs.A significant association has been found between ZEB1 expression and Ki-67 status. In addition, we demonstrated a correlation between expression of lncRNA-ATB and ZEB1 in tumor samples and not in ANCTs.
CONCLUSION: Collectively, out data show downregulation of lncRNA-ATB in a significant number of breast tumor tissues compared with ANCTs and imply that lncRNA-ATB might have distinct roles in the pathogenesis of different cancers or even different subtypes of a certain cancer which should be evaluated in future studies.
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