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Updated: May 9, 2026

Monitoring Functionality and Morphology of Vasculature Recruited by Factors Secreted by Fast-growing Tumor-generating Cells
Published on: November 23, 2014
Flavonol-mediated modulation of angiogenesis-related microRNAs in breast cancer: a narrative synthesis of current
Dakalo Portia Ramali1, Tania Mmapule Maphoso1, Thanyani Victor Mulaudzi1
1Department of Surgery, Level 7, Bridge E, Steve Biko Academic Hospital, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.
Abstract:
Angiogenesis is essential for breast cancer progression and metastasis; however, the clinical impact of vascular endothelial growth factor (VEGF)-targeted therapies remains limited due to adaptive resistance and activation of compensatory angiogenic pathways. Angiogenesis-regulating microRNAs (angiomiRs) act as upstream modulators of both VEGF-dependent and VEGF-independent signaling networks contributing to vascular plasticity, immune evasion, and therapeutic escape. Dietary flavonols such as kaempferol, myricetin, and quercetin have demonstrated anti-angiogenic activity in preclinical models, yet their mechanistic interaction with angiomiR-mediated regulation in breast cancer remains poorly characterized. This narrative review critically evaluates evidence identified through structured searches of Google Scholar, PubMed, Scopus, and Web of Science (2010-2026). We synthesize mechanistic and translational findings linking flavonols to microRNA-associated regulation of hypoxia signaling, endothelial activation, extracellular vesicle communication, and vascular normalization. Available evidence indicates that flavonols may influence angiogenic pathways both directly, by inhibiting key signaling cascades, and indirectly, through modulation of non-coding RNA networks. Despite these insights, experimental validation of specific flavonol-angiomiR interactions in breast cancer remains limited. AngiomiR modulation by flavonols, therefore, represents a mechanistically grounded but predominantly preclinical concept that warrants further translational investigation to clarify its therapeutic relevance and potential applications within precision oncology in breast cancer.
Insights
Dietary flavonols show potential in breast cancer therapy by modulating angiogenesis-regulating microRNAs (angiomiRs). Further research is needed to validate these findings for clinical applications in precision oncology.
Area of Science:
- Oncology
- Molecular Biology
- Nutritional Science
Background:
- Angiogenesis is crucial for breast cancer growth and metastasis.
- Current therapies targeting vascular endothelial growth factor (VEGF) have limited efficacy due to resistance.
- Angiogenesis-regulating microRNAs (angiomiRs) are key regulators of tumor vascular plasticity and immune evasion.
Purpose of the Study:
- To review the mechanistic links between dietary flavonols and angiomiR-mediated regulation in breast cancer.
- To evaluate the therapeutic potential of flavonols in overcoming resistance to anti-angiogenic therapies.
- To identify gaps in current research for future translational studies.
Main Methods:
- A narrative review of studies published between 2010-2026.
- Searches conducted across Google Scholar, PubMed, Scopus, and Web of Science.
- Synthesis of mechanistic and translational findings on flavonols, angiomiRs, and breast cancer angiogenesis.
Main Results:
- Flavonols (kaempferol, myricetin, quercetin) exhibit anti-angiogenic activity in preclinical models.
- Flavonols may influence angiogenesis directly by inhibiting signaling pathways and indirectly via non-coding RNA modulation.
- Evidence suggests flavonols can impact hypoxia signaling, endothelial activation, and vascular normalization through angiomiR networks.
Conclusions:
- Flavonol modulation of angiomiRs presents a promising, mechanistically supported strategy against breast cancer angiogenesis.
- Current evidence is largely preclinical, highlighting a need for experimental validation of specific flavonol-angiomiR interactions.
- Further translational research is essential to clarify the therapeutic relevance of flavonols in precision oncology for breast cancer.
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