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LncRNA DQ786243 expression as a biomarker for assessing prognosis in patients with gastric cancer.
OBJECTIVE: Recent studies have revealed that long noncoding RNA DQ786243 (DQ786243) plays an important role in the development of gastric cancer (GC) and colorectal cancer. However, the expression and function of DQ786243 in GC patients remain largely unknown. The purpose of our study was to investigate the clinical significance of DQ786243 expression in GC.
PATIENTS AND METHODS: qRT-PCR was used to examine DQ786243 expression in 172 paired GC samples and matched adjacent normal tissues. Besides, the relationship between DQ786243 expression and clinicopathologic characteristics was analyzed. Overall survival (OS) and progression-free survival (PFS) curves of patients in subgroups were constructed by the Kaplan-Meier method. Multivariate regression analyses were performed to analyze independent factors affecting prognosis.
RESULTS: We found a significant up-regulation of DQ786243 in GC tissues compared to normal tissues (p < 0.01). High DQ786243 expression was closely associated with invasion depth (p = 0.006), TNM stage (p = 0.009) and lymphatic metastasis (p = 0.017). Moreover, Kaplan-Meier analysis showed that patients with DQ786243 high expression tumors had worse OS (p = 0.0012) and PFS (p = 0.0002) compared to patients with DQ786243 low expression tumors. Finally, multivariate analysis showed that DQ786243 was a significant and independent prognostic predictor for both OS (p = 0.002) and PFS (p = 0.001) of GC patients.
CONCLUSIONS: Our data suggest, for the first time, that the evaluation of the DQ786243 expression in GC tissues is a useful tool for predicting prognosis of GC.
PATIENTS AND METHODS: qRT-PCR was used to examine DQ786243 expression in 172 paired GC samples and matched adjacent normal tissues. Besides, the relationship between DQ786243 expression and clinicopathologic characteristics was analyzed. Overall survival (OS) and progression-free survival (PFS) curves of patients in subgroups were constructed by the Kaplan-Meier method. Multivariate regression analyses were performed to analyze independent factors affecting prognosis.
RESULTS: We found a significant up-regulation of DQ786243 in GC tissues compared to normal tissues (p < 0.01). High DQ786243 expression was closely associated with invasion depth (p = 0.006), TNM stage (p = 0.009) and lymphatic metastasis (p = 0.017). Moreover, Kaplan-Meier analysis showed that patients with DQ786243 high expression tumors had worse OS (p = 0.0012) and PFS (p = 0.0002) compared to patients with DQ786243 low expression tumors. Finally, multivariate analysis showed that DQ786243 was a significant and independent prognostic predictor for both OS (p = 0.002) and PFS (p = 0.001) of GC patients.
CONCLUSIONS: Our data suggest, for the first time, that the evaluation of the DQ786243 expression in GC tissues is a useful tool for predicting prognosis of GC.
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