Increased Expression of Lncrna RP11-397A15.4 in Gastric Cancer and Its Clinical Significance

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• Long noncoding RNAs (lncRNAs) show promise as cancer biomarkers.
• The clinical significance of lncRNAs in gastric cancer (GC) is not yet established.

Purpose of the Study:

• To investigate the diagnostic and prognostic value of lncRNA RP11-397A15.4 in gastric cancer.
• To analyze the association between lncRNA RP11-397A15.4 expression and GC clinicopathological features and patient survival.

Main Methods:

• Quantitative reverse transcription polymerase chain reaction (qRT-PCR) was used to measure lncRNA RP11-397A15.4 expression in GC tissues, adjacent non-tumor tissues, and normal gastric mucosa.
• Expression levels were analyzed in GC cell lines and normal gastric cells.
• Statistical analyses included correlating expression with clinicopathological features, constructing a receiver operating characteristic (ROC) curve, and assessing overall survival (OS).

Main Results:

• lncRNA RP11-397A15.4 expression was significantly downregulated in GC tissues and cell lines compared to controls.
• Lower expression correlated with poor tumor differentiation, advanced clinical stage, and distant metastasis.
• The ROC curve analysis yielded an area under the curve (AUC) of 0.9726, indicating high diagnostic accuracy.
• A statistically significant correlation was found between lncRNA RP11-397A15.4 expression and overall survival.

Conclusions:

• lncRNA RP11-397A15.4 is downregulated in gastric cancer.
• This lncRNA demonstrates potential as a valuable diagnostic and prognostic biomarker for GC.
• Further research may validate its clinical utility in gastric cancer management.