Overexpression of PURPL and downregulation of NONHSAT062994 as potential biomarkers in gastric cancer

Publication date: 15 November 2019Source: Life Sciences, Volume 237Author(s): Heresh Moridi, Jamshid Karimi, Heidar Tavilani, Iraj Khodadadi, Amir Nader Emami RazaviAbstractAimsLong non-coding RNAs (LncRNAs) play central roles in the formation and development of gastric cancer (GC). The aim of this study was to evaluate the expression of PURPL and NONHSAT062994 and the relationship between their expressions with clinical characteristics in GC.Main methodsPURPL and NONHSAT062994 LncRNAs and p53 gene expression levels were analyzed both in 50 pairs of cancerous and adjacent noncancerous tissue samples in GC patients using qRT-PCR and in four sets of data obtained from Gene Expression Omnibus (GEO) database. Chi-square (χ2) test was used to determine the relationship between PURPL, NONHSAT062994 RNA levels and the clinicopathological characteristics of GC. Receiver operating characteristic (ROC) curves were drawn to represent sensitivity and specificity of PURPL and NONHSAT062994 expression as markers of GC.Key findingsExpression of PURPL was significantly upregulated in 50 GC samples as well as in GC tissues from GSE13911 and GSE27342 datasets. Our results demonstrated that PURPL RNA level in GC was significantly related to tumor size and histopathological grade. p53 expression at both protein and mRNA levels were significantly decreased in GC tissues compared to adjacent control samples.NONHSAT062994 expression was downregulated in 50-pair GC and GC tissues from GSE13915 da...
Source: Life Sciences - Category: Biology Source Type: research