Expression levels and clinical values of miR-92b-3p in breast cancer

Author:

Du Yu,Miao Zhuang,Wang Kedi,Lv Yan,Qiu Lijuan,Guo Lusheng

Abstract

Abstract Background miR-92b is a carcinogenic miRNA that has great potential as a biomarker for disease prognosis, diagnosis, and treatment in the clinic. It is of great significance to analyse the relationship between miR-92b and the clinicopathological characteristics of cancer patients. This paper aimed to investigate the expression levels and clinical values of miR-92b-3p in breast cancer (BC). Methods Altogether, 112 female BC patients who were treated in our hospital were included as a study group, and 108 healthy women who came to our hospital for physical examinations were included as a control group. miR-92b-3p expression in the serum of subjects in both groups was detected by fluorescence quantitative PCR (RT-PCR) to analyse the correlation of this miRNA with the patients’ pathological features and prognoses. The diagnostic value of miR-92b-3p expression for BC was analysed by plotting a receiver operating characteristic (ROC) curve. Results miR-92b-3p expression was remarkably higher in the study group (P < 0.05), and its area under the curve (AUC) for detecting BC was 0.88. The expression was correlated with the tumour size, degree of differentiation, TNM staging, and lymphatic metastasis (P < 0.05). miR-92b-3p was significantly positively correlated with the TNM staging (r = 0.40, P < 0.05), was significantly negatively correlated with the degree of differentiation of the breast cancer cells (r =  − 0.35, P < 0.05), and was significantly positively correlated with the expression of carbohydrate antigen 125 (CA125) (r = 0.39, P < 0.05). The overall survival rate (OSR) of the 99 patients who had follow-up was 73.74%. The survival status was remarkably better in the low expression group (P < 0.05). miR-92b-3p expression was remarkably higher in the death group (P < 0.05). The AUC of miR-92b-3p alone in the death and survival groups was 0.76. Conclusion miR-92b-3p expression obviously rises in the serum of BC patients and is closely related to the clinical staging, degree of differentiation, and CA125 in BC, so the detection of this miRNA is of great significance to the diagnosis and prognostic evaluation of BC. This miRNA can be used as a potential biomarker for the diagnosis and prognosis of the disease.

Publisher

Springer Science and Business Media LLC

Subject

Oncology,Surgery

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