Journal
JOURNAL OF CANCER RESEARCH AND CLINICAL ONCOLOGY
Volume 144, Issue 8, Pages 1401-1411Publisher
SPRINGER
DOI: 10.1007/s00432-018-2689-2
Keywords
Triple-negative breast carcinoma; MicroRNA; EMT; CSC; Invasion
Categories
Funding
- Polish National Science Centre [UMO-2015/17/B/ NZ4/02157]
- Medical University of Lodz [502-03/1-034-03/502-14-329, 502-03/1-034-03/502-14-330]
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Dysregulation of miRNA profile has been associated with a broad spectrum of cellular processes underlying progression of various human malignancies. Increasing evidence suggests that specific microRNA clusters might be of clinical utility, especially in triple-negative breast carcinoma (TNBC), devoid of both predictive markers and potential therapeutic targets. Here we provide a comprehensive review of the existing data on microRNAs in TNBC, their molecular targets, a putative role in invasive progression with a particular emphasis on the epithelial-to-mesenchymal transition (EMT) and acquisition of stem-cell properties (CSC), regarded both as prerequisites for metastasis, and significance for therapy. PubMed and Medline databases were systematically searched for the relevant literature. 121 articles have been selected and thoroughly analysed. Several miRNAs associated with EMT/CSC and invasion were identified as significantly (1) upregulated: miR-10b, miR-21, miR-29, miR-9, miR-221/222, miR-373 or (2) downregulated: miR-145, miR-199a-5p, miR-200 family, miR-203, miR-205 in TNBC. Dysregulation of miR-10b, miR-21, miR-29, miR-145, miR-200 family, miR-203, miR-221/222 was reported of prognostic value in TNBC patients. Available data suggest that specific microRNA clusters might play an important role in biology of TNBC, understanding of which should assist disease prognostication and therapy.
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