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Clinicopathological Analysis of miRNA Expression in Breast Cancer Tissues by Using miRNA In Situ Hybridization
Published on: June 7, 2016
A comprehensive review on oncogenic miRNAs in breast cancer
Maryam Maryam1, Mahsa Naemi, Shahrzad Sheikh Hasani
1Department of Fetomaternal, Faculty of Medicine, Shariati Hospital, Tehran University of Medical Sciences, Tehran 14155-6559, Iran. Shahrzad.SheikhHasani@gmail.com.
Abstract:
A growing body of evidence demonstrates that the oncogenic miRNAs are critical components that are involved in breast cancer (BC) progression. Thus, they are attracting a great deal of consideration as they provide opportunities for the novel avenues for developing BC targeted therapy. In the current review, we try to discuss the key oncogenic miRNAs implicated in cell migration, invasion and metastasis (e.g., miR-9, miR-10b, miR-10b-5p, miR-17/9, miR-21, miR-103/107, miR-181b-1, miR-301, miR-301a, miR-373, miR- 489, miR-495 and miR-520c), apoptosis inhibition (e.g., miR-21, miR-155, miR-181, miR-182 and miR-221/222), cell proliferation (e.g., miR-221/222, miR-17/92, miR-21, miR-301a, miR-155, miR-181 b, miR-182, miR-214, miR-20b, miR-29a, miR-196, miR-199a-3p, miR- 210, miR-301a, miR-375, miR-378-3p and miR-489), and angiogenesis (e.g., miR-9, miR-17/92 cluster, miR-93 and miR-210). In particular, here, we considered miRNA-based therapeutic approaches to summarize the evidence for their potential therapeutic uses in clinical practice. Therefore, miRNA mimics (i.e., replacement and restoration of miRNAs) and inhibition therapy (e.g., anti-miRNA oligonucleotides (AMO), antagomiRs or antisense oligonucleotides (ASOs): cholesterol-conjugated anti-miRs and locked nucleic acid (LNA)), miRNA sponges, nanoparticles (NPs), multiple-target anti-mirna antisense oligonucleotide technology (MTg-AMOs), and artificial miRNAs (amiRNAs) have been indicated throughout the article as much as possible.
Insights
Oncogenic microRNAs (miRNAs) drive breast cancer progression by affecting cell migration, apoptosis, proliferation, and angiogenesis. This review explores miRNA-based therapies, including mimics and inhibitors, for targeted breast cancer treatment.
Area of Science:
- Molecular Biology
- Oncology
- Biochemistry
Background:
- Oncogenic microRNAs (miRNAs) play a critical role in breast cancer (BC) progression.
- These miRNAs influence key hallmarks of cancer, including cell migration, invasion, metastasis, apoptosis inhibition, cell proliferation, and angiogenesis.
- Understanding the specific roles of oncogenic miRNAs offers potential for novel targeted BC therapies.
Purpose of the Study:
- To review the key oncogenic miRNAs implicated in breast cancer progression.
- To discuss miRNA-based therapeutic strategies for targeted breast cancer treatment.
- To summarize evidence for the clinical potential of miRNA-based therapies in breast cancer.
Main Methods:
- Comprehensive literature review of oncogenic miRNAs in breast cancer.
- Analysis of miRNAs involved in cell migration, invasion, metastasis, apoptosis, proliferation, and angiogenesis.
- Examination of various miRNA-based therapeutic approaches, including mimics, inhibitors, sponges, nanoparticles, and artificial miRNAs.
Main Results:
- Identified key oncogenic miRNAs (e.g., miR-9, miR-21, miR-155, miR-17/92) involved in multiple BC processes.
- Detailed various miRNA-based therapeutic modalities such as miRNA mimics, anti-miRNA oligonucleotides (AMOs), miRNA sponges, and nanoparticles.
- Highlighted the potential of these therapeutic strategies for clinical application in breast cancer treatment.
Conclusions:
- Oncogenic miRNAs are crucial drivers of breast cancer and represent promising therapeutic targets.
- miRNA-based therapies, including mimics and inhibition strategies, offer novel avenues for targeted BC treatment.
- Further research and clinical translation of these miRNA-based approaches are warranted for effective breast cancer management.
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