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Med Oncol. 2013 Dec;30(4):709. doi: 10.1007/s12032-013-0709-2. Epub 2013 Sep 1.

Up-regulation of SUMO1 pseudogene 3 (SUMO1P3) in gastric cancer and its clinical association.

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  • 1Zhejiang Provincial Key Laboratory of Pathophysiology, Department of Biochemistry and Molecular Biology, Ningbo University School of Medicine, 818 Fenghua Road, Ningbo, 315211, China.


Long noncoding RNAs (lncRNAs) play crucial roles during cancer occurrence and progression. The pseudogene-expressed lncRNA is one major type of lncRNA family. However, their association with cancers is largely unknown. In this study, we focused on small ubiquitin-like modifier (SUMO) 1 pseudogene 3, SUMO1P3. Gastric cancer tissues and adjacent nontumor tissues were collected from 96 patients with gastric cancer. The SUMO1P3 levels were detected by quantitative reverse transcription-polymerase chain reaction. Then, the association between the level of SUMO1P3 in gastric cancer tissues and the clinicopathological features of patients with gastric cancer was further analyzed. A receiver operating characteristic curve was constructed for differentiating patients with gastric cancer from patients with benign gastric diseases. The results showed that SUMO1P3 was significantly up-regulated in gastric cancer tissues compared with paired-adjacent nontumorous tissues (p < 0.01). Its expression level was significantly correlated with tumor size (p = 0.003), differentiation (p = 0.002), lymphatic metastasis (p = 0.001), and invasion (p = 0.039). The area under the ROC curve of SUMO1P3 was up to 0.666. These results indicated, for the first time, that pseudogene-expressed lncRNA SUMO1P3 may be a potential biomarker in the diagnosis of gastric cancer.

[PubMed - indexed for MEDLINE]
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