| Summary: | Prostate cancer (PCa) is one of the most common cancer in males. Previous studies indicated that MIR22HG was a tumor suppressor in various cancers. However, the expression pattern and functional roles of MIR22HG in PCa remained to be further investigated. In this study, we for the first time showed MIR22HG was down-regulated in PCa. Furthermore, we observed the lower expression levels of MIR22HG were significantly related to higher Gleason score and T stage. Of note, we found that higher MIR22HG expression was associated with better disease-free survival and overall survival time in PCa. Moreover, we constructed a MIR22HG mediated co-expression network. Bioinformatics analysis showed MIR22HG was associated with regulating inflammatory response, regulation of transcription, cellular response to tumor necrosis factor, neutrophil chemotaxis, cell-cell signaling, and TNF signaling pathway. These results showed that MIR22HG could serve as a novel biomarker for prostate cancer.
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