Decreased expression of hsa_circ_0072387 as a valuable predictor for oral squamous cell carcinoma.
ORAL DISEASES(2019)
Abstract
Objective Increasing evidence points toward the key function of circular RNAs (circRNAs) in various carcinomas. This study aimed to identify aberrant expression of hsa_circ_0072387 in oral squamous cell carcinoma and probe its clinical significance. Materials and Methods Real-time quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used to assess hsa_circ_0072387 expression levels in 63 paired OSCC tissues and three OSCC cell lines. The area under the receiver operator characteristic (ROC) curve was plotted to assess any potential clinical significance. Results Our data showed that hsa_circ_0072387 expression in OSCC was significantly downregulated compared with adjacent normal tissues (p < 0.001). Compared to human normal oral keratinocyte cell, the levels of hsa_circ_0072387 were lower in three OSCC cell lines (SCC25, SCC15, CAL27). More significantly, hsa_circ_0072387 expression was associated with the TNM stage in OSCC (p = 0.050). The area under the ROC curve reached up to 0.746. Based on bioinformatics, hsa-miR-129-3p, hsa-miR-141-3p, and hsa-miR-29-3p were predicted to be potential miRNAs binding with hsa_circ_0072387. Furthermore, hsa-miR-129-3p, hsa-miR-141-3p, and hsa-miR-29-3p were involved in multiple tumor-related signaling pathways. Conclusion Our finding suggested that lower expression of has_circ_0072387 could be a key circRNA in OSCC and serve as a potential biomarker in OSCC diagnosis and therapeutic targets.
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Key words
circular RNA,clinical significance,oral squamous cell carcinoma
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