Elucidating the pathogenesis of esophageal adenocarcinoma through meta-analysis of public data.
2019
71Background: Esophageal adenocarcinoma (EAC) is the sixth most common cause of cancer-related deaths worldwide. It commonly arises in the setting of reflux disease and Barett’s esophagus. It remains incurable and holds a poor prognosis. Dissecting the genetic signature of EAC can pave new therapeutic avenues. Methods: We employed our Search Tag Analyze Resource (STARGEO) platform to conduct meta-analysis using the National Center for Biotechnology’s (NCBI) Gene Expression Omnibus (GEO). We tagged 151 tumor samples from EAC patients and 62 normal esophageal samples as a control. We then analyzed the signature in Ingenuity Pathway Analysis, restricting genes that showed statistical significance (p < 0.05) and an absolute experimental log ratio greater than 0.15 between tumor and control. Results: Our analysis revealed granulocyte adhesion and diapedesis and FXR/RXR signaling as top canonical pathways. TGFB1, TNF, and beta-estradiol were top upstream regulators with predicted activation. TGFB1 and TNF expre...
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