期刊
DIAGNOSTICS
卷 12, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/diagnostics12040789
关键词
breast cancer patients; MicroRNAs; serum; early detection; sensitivity; specificity
资金
- Taif University, Taif, Saudi Arabia [TURSP-2020/202]
This study evaluated the use of serum microRNAs (miRs) as biomarkers for early detection of breast cancer (BC) in Egyptian patients. The results showed that miR-155, miR-373, and miR-10b were upregulated, while miR-34a was downregulated in nonmetastatic BC patients. miR-155 and miR-10b were correlated with tumor size and nodal involvement. The combination of these miRs showed high sensitivity and specificity for BC detection.
Background: Early detection and screening of breast cancer (BC) might help improve the prognosis of BC patients. This study evaluated the use of serum microRNAs (miRs) as non-invasive biomarkers in BC patients. Methods: Using quantitative real-time polymerase chain reaction, we evaluated the serum expression of four candidate miRs (miR-155, miR-373, miR-10b, and miR-34a) in 99 Egyptian BC patients and 40 healthy subjects (as a control). The miRs expression was correlated with clinicopathological data. In addition, the sensitivity and specificity of the miRs were determined using receiver operating characteristic (ROC) curve analysis. Results: Serum miR-155, miR-373, and miR-10b expression were significantly upregulated (p < 0.001), while serum miR-34a was downregulated (p < 0.00) in nonmetastatic (M0) BC patients compared to the control group. In addition, serum miR-155 and miR-10b were upregulated in BC patients with large tumor sizes and extensive nodal involvement (p < 0.001). ROC curve analysis showed high diagnostic accuracy (area under the curve = 1.0) when the four miRs were combined. Serum miR-373 was significantly upregulated in the human epidermal growth factor 2-negative (p < 0.001), estrogen receptor-positive (p < 0.005), and progesterone receptor (PR)-positive (p < 0.024) in BC patients, and serum miR-155 was significantly upregulated in PR-negative (p < 0.001) BC patients while both serum miR-155 and miR-373 were positively correlated with the tumor grade. Conclusions: Circulating serum miR-155, miR-373, miR-10b, and miR-34a are potential biomarkers for early BC detection in Egyptian patients and their combination shows high sensitivity and specificity.
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