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Updated: Feb 13, 2026

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An Ex vivo Model to Study Hormone Action in the Human Breast
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Metabolic-Immuno-Hormonal Cross-talk in Breast Cancer: A UAE-Based Multi-Omics Perspective
Sarra B Shakartalla1,2, Sara Naif1,3, Hamza M Al-Hroub1
1Research Institute for Medical and Health Sciences, University of Sharjah, P.O. Box 27272Sharjah, United Arab Emirates.
Journal of Proteome Research
|February 12, 2026
Summary
This study identified key metabolic and proteomic biomarkers for breast cancer (BC) progression in the UAE. These findings suggest potential for earlier BC detection and personalized treatment strategies.
Area of Science:
- Biochemistry
- Proteomics
- Metabolomics
Background:
- Breast cancer (BC) is a leading cause of cancer death for women in the Middle East and North Africa (MENA).
- High BC mortality in the UAE is linked to delayed diagnosis.
- Identifying specific biomarkers is crucial for early detection and improved outcomes.
Purpose of the Study:
- To identify metabolic and proteomic biomarkers associated with breast cancer (BC) progression in the United Arab Emirates (UAE) population.
- To explore stage-specific metabolic and proteomic signatures.
- To suggest candidate biomarkers for BC detection and personalized therapy.
Main Methods:
- Plasma samples from 35 BC patients and 30 healthy controls (HC) from the UAE were analyzed using untargeted metabolomics and proteomics via LC-QTOF-MS.
- Multivariate statistical models (OPLS-DA, AUROC) were used to evaluate biomarker performance.
- Integrated pathway and structural motif analyses were performed to identify disease-stage-specific signatures.
Main Results:
- A distinct metabolic signature was identified, showing disruptions in amino acid (arginine), purine/pyrimidine, and steroid hormone metabolism.
- Key metabolites (l-arginine, hypoxanthine, uridine, vitamin D3, estradiol) exhibited stage-specific alterations, with eleven metabolites showing high diagnostic power (AUROC = 0.954).
- Structural motif analysis revealed a shift from polar metabolites in early-stage BC to lipophilic steroidal and lipid structures in late-stage disease. Proteomics indicated dysregulated immune and hormonal signaling.
Conclusions:
- This UAE-based study reveals distinct metabolic and structural features characterizing breast cancer progression.
- The identified biomarkers offer potential for improved BC detection and the development of personalized therapeutic strategies.
- The findings highlight the intricate cross-talk among metabolic, immune, and endocrine pathways in BC progression.
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