: a hub gene related to poor prognosis for lung adenocarcinoma.

The study aims to pinpoint hub genes and investigate their functions in order to gain insightful understandings of lung adenocarcinoma (LUAD). Bioinformatic approaches were adopted to investigate genes in databases including Gene Expression Omnibus, WebGestalt, STRING and Cytoscape, GEPIA2, Oncomine, Human Protein Atlas, TIMER2.0, UALCAN, cBioPortal, TargetScanHuman, OncomiR, ENCORI, Kaplan-Meier plotter, UCSC Xena, European Molecular Biology Laboratory - European Bioinformatics Institute Single Cell Expression Atlas and CancerSEA. Five hub genes were ascertained. was overexpressed in a range of cancers, including LUAD. Promoter methylation, amplification and miRNA regulation might trigger upregulation, signaling poor prognosis. with its coexpressed genes were enriched in the cell cycle pathway. Intratumor heterogeneity of expression could be observed. Cell clusters with expression were more prone to metastasis and epithelial-to-mesenchymal transition. might potentially act as a prognostic biomarker for LUAD.