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  • Title: Serum exosomal miR-182 upregulation predicts unfavorable prognosis of esophageal squamous cell carcinoma.
    Author: Qiu ML, Li X, Lin JB, Luo RG, Liu B, Feng Z.
    Journal: Eur Rev Med Pharmacol Sci; 2020 May; 24(10):5412-5418. PubMed ID: 32495876.
    Abstract:
    OBJECTIVE: Identification of novel and reliable biomarkers is crucial for the early detection and prognosis prediction of esophageal squamous cell carcinoma (ESCC). In this study, we aimed to explore the potential clinical significance of serum exosomal miR-182 in ESCC. PATIENTS AND METHODS: A total of 125 patients with ESCC and 60 healthy volunteers were enrolled in this study. Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used to detect the serum exosomal miR-182 level. Then, the associations between serum exosomal miR-182 levels and clinicopathological features, as well as clinical outcome were further investigated. RESULTS: Serum exosomal miR-182 levels were significantly higher in pre-operative ESCC patients than in normal controls and post-operative ESCC patients. In addition, the receiver operating characteristic (ROC) curve analysis showed that the serum exosomal miR-182 could well differentiate ESCC patients from the healthy controls. Moreover, high serum exosomal miR-182 expression was strongly associated with worse clinical parameters including differentiation, lymph node metastasis, and TNM stage. ESCC patients in the high serum exosomal miR-182 group had significantly shorter overall survival and relapse free survival than those in the low serum exosomal miR-182 group. Furthermore, serum exosomal miR-182 was an independent prognostic indicator for ESCC. CONCLUSIONS: Collectively, serum exosomal miR-182 might serve as a promising biomarker for predicting the unfavorable prognosis of ESCC.
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