Abstract
Background
MicroRNAs constitute a large family of non-coding RNAs, which actively participate in tumorigenesis by regulating a set of mRNAs of distinct signaling pathways. An altered expression of these molecules has been found in different tumorigenic processes of breast cancer, the most common type of cancer in the female population worldwide.
Purpose
The objective of this review is to discuss how miRNAs become master regulators in breast tumorigenesis.
Methods
An integrative review of miRNAs and breast cancer literature from the last 5 years was done on PubMed. We summarize recent works showing that the defects on the biogenesis of miRNAs are associated with different breast cancer characteristics. Then, we show several examples that demonstrate the link between cellular processes regulated by miRNAs and the hallmarks of breast cancer. Finally, we examine the complexity in the regulation of these molecules as they are modulated by other non-coding RNAs and the clinical applications of miRNAs as they could serve as good diagnostic and classification tools.
Conclusion
The information presented in this review is important to encourage new directed studies that consider microRNAs as a good tool to improve the diagnostic and treatment alternatives in breast cancer.
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Abbreviations
- BC:
-
Breast cancer
- TNBC:
-
Triple-negative breast cancer
- EMT:
-
Epithelial-to-mesenchymal transition
- BCSC:
-
Breast cancer stem cells
- EGR1:
-
Early growth response protein 1
- SOCS1:
-
Suppressor of cytokine signaling 1
- CDKN1B:
-
Cyclin-dependent kinase inhibitor 1B
- STAT5A:
-
Signal transducer and activator of transcription 5a
- PTEN:
-
Phosphatase and tensin homolog
- Akt:
-
Protein kinase B
- Bcl-w:
-
Bcl-2-like protein 2
- ERα:
-
Estrogen receptor alpha
- E2F3:
-
E2F Transcription factor 3
- SMAD7:
-
Mothers against decapentaplegic homolog 7
- CDK8:
-
Cyclin-dependent kinase 8
- BNDF:
-
Brain-derived neurotrophic factor
- SIAH1:
-
Siah E3 ubiquitin protein ligase 1
- MCL-1:
-
Induced myeloid leukemia cell differentiation protein
- ADIPOR1:
-
Adiponectin receptor 1
- TRPS1:
-
Transcriptional repressor GATA binding 1
- ADAM-17:
-
ADAM metallopeptidase domain 17
- uPAR7b:
-
uPAR isoform 2
- NIM:
-
N-Myc interactor
- NOV/CCN3:
-
Nephroblastoma overexpressed
- ERBB3:
-
Erb-B2 receptor tyrosine kinase 3
- Kras:
-
Proto-oncogene for Kirsten rat sarcoma viral oncogene
- MMP9:
-
Matrix metallopeptidase 9
- CXCR4:
-
C-X-C chemokine receptor type 4
- ZBTB10:
-
Zinc finger and BTB domain containing 10
- Ang2:
-
Angiopoietin-2
- IL8:
-
Interleukin 8
- CXCL1:
-
Chemokine (C-X-C motif) ligand 1
- VHL:
-
Von Hippel–Lindau tumor suppressor
- hTERT:
-
Human telomerase reverse transcriptase
- C/EBPβ:
-
CCAAT/enhancer-binding protein beta
- LDHA:
-
Lactate dehydrogenase A
- PK:
-
Pyruvate kinase
- ERRγ:
-
Estrogen-related receptor gamma
- GABPA:
-
GA-binding protein alpha
- ISCU:
-
Iron–sulfur cluster assembly enzyme
- MiCB:
-
MHC class I polypeptide-related sequence B
- TERF1:
-
Telomeric repeat-binding factor 1
- FOXO3a:
-
Forkhead box O3
- BRCA1:
-
Breast cancer type 1 susceptibility protein
- NFKB:
-
Nuclear factor kappa B
- OxPhos:
-
Oxidative phosphorylation
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EAMT drafted the manuscript and edited the figures. AGV, JMZ, and VML helped to edit and review the manuscript. All authors read and approved the final version of the article.
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Mandujano-Tinoco, E.A., García-Venzor, A., Melendez-Zajgla, J. et al. New emerging roles of microRNAs in breast cancer. Breast Cancer Res Treat 171, 247–259 (2018). https://doi.org/10.1007/s10549-018-4850-7
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DOI: https://doi.org/10.1007/s10549-018-4850-7