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Updated: Jun 24, 2025

Identification of Circular RNAs using RNA Sequencing
Published on: November 14, 2019
The therapeutic potential of circular RNA in triple-negative breast cancer
Aiqi Xu1,2, Lewei Zhu3,2, Chengcai Yao4
1Department of Breast Oncology, School of Medicine, South China University of Technology, Guangzhou 510006, Guangdong, China.
Abstract:
Triple-negative breast cancer (TNBC) is among the most aggressive subtypes of the disease that does not express estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2. Circular RNAs (circRNAs) are a type of non-coding RNA with a circular shape formed by non-standard splicing or reverse splicing. Numerous circRNAs exhibit abnormal expression in various malignancies, showing their critical role in the emergence and growth of tumors. Recent studies have shown evidence supporting the idea that certain circRNAs regulate the proliferation and metastasis of TNBC. In addition, circRNAs alter metabolism and the immune microenvironment to promote or inhibit the development of TNBC. Notably, circRNAs may affect the efficacy of clinical drug therapy, serve as therapeutic targets, and be used as molecular biomarkers in the future. Herein, we will first summarize the biogenesis and function of circRNAs. Then, we will explain current research on circRNAs related to TNBC and their potential to serve as therapeutic targets or biomarkers for future drug development, providing a new direction and idea for TNBC therapy.
Insights
Circular RNAs (circRNAs) are key regulators in triple-negative breast cancer (TNBC) development, influencing proliferation, metastasis, and the tumor microenvironment. These non-coding RNAs show promise as future therapeutic targets and biomarkers for TNBC.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- Triple-negative breast cancer (TNBC) is an aggressive subtype lacking standard therapeutic targets.
- Circular RNAs (circRNAs) are non-coding RNAs with dysregulated expression in various cancers.
- Emerging evidence links circRNAs to TNBC progression, metabolism, and immune interactions.
Purpose of the Study:
- To review the biogenesis and function of circRNAs.
- To summarize current research on circRNAs in TNBC.
- To explore the potential of circRNAs as therapeutic targets and biomarkers for TNBC.
Main Methods:
- Literature review of circRNA research in TNBC.
- Analysis of circRNA roles in TNBC proliferation, metastasis, and metabolism.
- Evaluation of circRNAs in the tumor immune microenvironment.
Main Results:
- CircRNAs play critical roles in TNBC tumorigenesis and progression.
- Specific circRNAs can promote or inhibit TNBC development.
- CircRNAs impact TNBC cell proliferation, metastasis, and metabolic reprogramming.
- CircRNAs influence the immune landscape within the TNBC microenvironment.
Conclusions:
- CircRNAs are significant players in TNBC pathogenesis.
- CircRNAs hold potential as novel biomarkers for TNBC diagnosis and prognosis.
- CircRNAs represent promising therapeutic targets for innovative TNBC treatments.
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