Journal
CANCER CELL INTERNATIONAL
Volume 21, Issue 1, Pages -Publisher
BMC
DOI: 10.1186/s12935-020-01716-8
Keywords
Breast cancer; Breast cancer stem cell (BCSC); miRNA; Self-renewal; Therapeutic resistance
Categories
Funding
- National Natural Science Foundation of China [81872003]
- Canadian Breast Cancer Foundation [C7022]
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Breast cancer stem cells (BCSCs) play critical roles in modulating breast tumor behaviors and drug resistance, while miRNAs in breast cancer exhibit multifaceted roles as suppressors or oncogenes in regulating cancer progression. The review highlights the importance of miRNAs in regulating key signaling pathways that are essential for BCSC maintenance.
Breast cancer is the most common cancer among women and accounts for 30% of all female malignancies worldwide. Breast cancer stem cells (BCSCs) are a small population of breast cancer cells that exhibit multiple characteristics including differentiation capacity, self-renewal and therapeutic resistance. Recently, BCSCs have attracted attention due to their modulation of breast tumor behaviors and drug resistance. miRNAs are small noncoding mRNAs involved in virtually all biological processes, including stem cell development, maintenance and differentiation. In breast cancer, miRNAs appear to be multi-faceted since they can act as either suppressors or oncogenes to regulate breast cancer progression. This review summarizes the critical roles of miRNAs in regulating multiple signaling pathways such as Wnt/beta -catenin, Notch, PI3K/AKT/mTOR, BMI-1 and STAT3 that are important for the BCSC maintenance.
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