Journal
ONCOTARGETS AND THERAPY
Volume 11, Issue -, Pages 4263-4270Publisher
DOVE MEDICAL PRESS LTD
DOI: 10.2147/OTT.S165156
Keywords
breast cancer; stem cells; microRNA; EMT
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Funding
- Zhejiang Cancer Hospital, China [2013102202]
- Key platform technological project of Zhejiang medical science and hygiene [2016ZDB003]
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Breast cancer is one of the most common malignancies for women, which accounts for 30% of all female malignancies. The formation of breast cancer stem cells (BCSCs) is attributed to the acquisition of stemness of tumor cells. With self-renewal potential, these stem cells are insensitive to either radiotherapy or chemotherapy but are significant in regulating tumor behaviors and drug resistance. MicroRNA (miRNA) is a kind of noncoding small RNA for negatively regulating gene expressions. Research findings suggest that many miRNAs specifically regulate the expression of target genes and signal pathways of BCSCs. They play an important role in self-renewal, growth, and metastasis of breast cancer cells as potential targets for treating breast cancer. These signal pathways include phosphatase and tensin homolog deleted on chromosome 10-phosphatidylinositol 3-kinase/Akt, Wnt/beta-catenin, Notch, and so on. This paper reviews the progress of research about miRNAs in self-renewal, metastasis, epithelial-mesenchymal transition and metastasis, mediation of resistance to chemotherapies, and treatment of breast cancer.
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