Dysregulated of the FAM138E and CLRN1-AS1 lncRNAs could be diagnosis biomarkers in colorectal cancer

Abstract

Background: Colorectal cancer (CRC) is a malignant tumor that is prone to metastasis and seriously affects human health and longevity. Therefore, identifying suitable biomarkers for diagnostic and therapeutic purposes in CRC is a pressing requirement. The development of bioinformatics analysis has led to the introduction of an increasing number of long non-coding RNAs (lncRNAs) as potential biomarkers. Methods: The Cancer Genome Atlas Program (TCGA) data for CRC were computationally analyzed to identify new and potential lncRNAs that are dysregulated in CRC. Real-time qPCR was conducted to quantitatively measure the expression levels of FAM138E and CLRN1-AS1 lncRNAs. Result: This approach led us to select FAM138E and CLRN1-AS1 lncRNAs as dysregulated lncRNAs in the TCGA database. We then quantified the expression levels of these lncRNAs, which interestingly showed overexpression of CLRN1-AS1 (P-value<0.0001, Fold change = 1.55) and downregulation of FAM138E (P-value = 0.012, Fold change = 0.028) in tumors compared to normal adjacent tissues. Conclusion: The evaluated associations with prognosis in CRC using data from TCGA database showed that these lncRNAs could be used as diagnostic factors to detect tumors from normal samples. These findings may have implications for the deeper characterization of FAM138E and CLRN1-AS1 lncRNAs in colorectal cancer. © 2023 Elsevier B.V.