ArticleInternational journal of molecular sciences2025
Soy Isoflavone Genistein Enhances Tamoxifen Sensitivity in Breast Cancer via microRNA and Glucose Metabolism Modulation.
Article in International journal of molecular sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Nutritional Impact on Breast Cancer in Menopausal and Post-Menopausal Patients Treated with Aromatase Inhibitors.Cancers · 2025Review
- Anticancer Potential of Isoflavones: A Narrative Overview of Mechanistic Insights and Experimental Evidence from the Past Ten Years.Biomedicines · 2025Review
- Beyond Hormone Replacement: Multifaceted Effects of Phytoestrogens for Optimizing Kinesiological and Physiological Adaptations in Postmenopausal Women.Clinical interventions in aging · 2025Review
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Authors and funding
5 authors.
Funding
Abstract
Breast cancer treatment has advanced significantly, particularly for estrogen receptor-positive (ER+) tumors. Tamoxifen, an estrogen antagonist, is widely used; however, approximately 40% of patients develop resistance. Recent studies indicate that microRNAs, especially miR-155, play a critical role in this resistance. Our analysis of MCF-7 tamoxifen-sensitive (TAM-S) and tamoxifen-resistant (TAM-R) cells revealed that miR-155 is significantly upregulated in TAM-R cells. Overexpression of miR-155 in TAM-S cells increased resistance to tamoxifen. Additionally, genistein, a natural isoflavone from soybeans, effectively downregulated miR-155 and its targets associated with apoptosis and glucose metabolism, including STAT3 and hexokinase 2 (HK2). Notably, genistein also significantly decreased cell migration, suggesting potential anti-metastatic effects. Furthermore, genistein reduced glucose consumption, indicating its potential to overcome miR-155-mediated tamoxifen resistance and modulate the Warburg effect. These findings highlight genistein as a promising therapeutic agent for overcoming tamoxifen resistance in ER+ breast cancer and merit further investigation.
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