Wenqi Liu1,1, Jing Liu2,1, Qiangqiang Zhang2, Li Wei3. 1. Department of Radiation Oncology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China. 2. Guangxi Medical University, Nanning, Guangxi, China. 3. Department of Human Anatomy, Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education, School of Preclinical Medicine, Guangxi Medical University, Nanning, Guangxi, China.
Abstract
BACKGROUND: Increasing evidence have shown that miRNAs play an important role in the development and progression of non-small cell lung cancer (NSCLC). OBJECTIVE: In this study, we aimed to analyze serum exosomal miR-216b expression in NSCLC patients and its potential clinical significance. METHODS: A total of 105 NSCLC patients and 60 healthy controls were enrolled, and quantitative reverse transcription polymerase chain reaction (qRT-PCR) was performed to detect serum exosomal miR-216b expression. RESULTS: The results demonstrated that serum exosomal miR-216b levels were significantly lower in NSCLC patients compared to controls. In addition, receiver operating characteristic analysis revealed that serum exosomal miR-216b had better diagnostic accuracy than CEA, CYFRA21-1 or SCCA. Moreover, serum exosomal miR-216b levels in early-stage NSCLC patients were dramatically increased after surgical resection, and patients with low serum exosomal miR-216b expression had higher lymph node metastasis probability. Furthermore, low serum exosomal miR-216b expression was closely associated with poor prognosis. Finally, multivariate analysis showed that serum exosomal miR-216b could serve as an independent predictor of NSCLC. CONCLUSIONS: Collectively, serum exosomal miR-216b might be used as a potential diagnostic and prognostic biomarker for NSCLC.
BACKGROUND: Increasing evidence have shown that miRNAs play an important role in the development and progression of non-small cell lung cancer (NSCLC). OBJECTIVE: In this study, we aimed to analyze serum exosomal miR-216b expression in NSCLCpatients and its potential clinical significance. METHODS: A total of 105 NSCLCpatients and 60 healthy controls were enrolled, and quantitative reverse transcription polymerase chain reaction (qRT-PCR) was performed to detect serum exosomal miR-216b expression. RESULTS: The results demonstrated that serum exosomal miR-216b levels were significantly lower in NSCLCpatients compared to controls. In addition, receiver operating characteristic analysis revealed that serum exosomal miR-216b had better diagnostic accuracy than CEA, CYFRA21-1 or SCCA. Moreover, serum exosomal miR-216b levels in early-stage NSCLCpatients were dramatically increased after surgical resection, and patients with low serum exosomal miR-216b expression had higher lymph node metastasis probability. Furthermore, low serum exosomal miR-216b expression was closely associated with poor prognosis. Finally, multivariate analysis showed that serum exosomal miR-216b could serve as an independent predictor of NSCLC. CONCLUSIONS: Collectively, serum exosomal miR-216b might be used as a potential diagnostic and prognostic biomarker for NSCLC.