期刊
TOXICOLOGY AND APPLIED PHARMACOLOGY
卷 359, 期 -, 页码 55-61出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.taap.2018.09.018
关键词
LncRNA; Apoptosis; Triple Negative Breast Cancer; Drug Resistance; Apoptosis; Akt
资金
- Heilongjiang Postdoctoral Foundation
Triple negative breast cancer (TNBC) is associated with poor prognosis and systemic chemotherapy is the only treatment for TNBC. However, development of chemo-resistance remains a major obstacle for TNBC treatment. Paclitaxel-resistance is mainly related to the activation of the Akt signaling pathway and deregulation of apoptotic regulatory proteins. LncRNAs are frequently dysregulated in various malignancies, including breast cancer, facilitating cell proliferation, metastasis and drug resistance. LncRNA H19 is overexpressed in approximately 70% of breast cancer patients, and has been reported to confer chemo-resistance in breast cancer. In the present study, we investigated the expression level of lncRNA H19 in paclitaxel-resistant and paclitaxel-sensitive cell lines. The results showed that the level of lncRNA F119 expression in paclitaxel-resistant cells was significantly higher than that in paclitaxel-sensitive cells, and knockdown of lncRNA H19 might restore chemosensitivity in paclitaxel-resistant TNBC by mediating the AKT signaling pathway. Thus, lncRNA H19 might be an efficient therapeutic target in paclitaxel-resistant TNBC treatment.
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