Abstract
Adrenocortical carcinoma (ACC) is a malignant carcinoma with an extremely poor
prognosis, and its pathogenesis remains to be understood to date, necessitating
further investigation. This study aims to discover biomarkers and potential
therapeutic agents for ACC through bioinformatics, enhancing clinical diagnosis
and treatment strategies. Differentially expressed genes (DEGs) between ACC and
normal adrenal cortex were screened out from the GSE19750 and GSE90713 datasets
available in the GEO database. An online Venn diagram tool was utilized to
identify the common DEGs between the two datasets. The identified DEGs were
subjected to functional assessment, pathway enrichment, and identification of
hub genes by performing the protein-protein interaction (PPI), Gene Ontology
(GO), and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. The
differences in the expressions of hub genes between ACC and normal adrenal
cortex were validated at the GEPIA2 website, and the association of these genes
with the overall patient survival was also assessed. Finally, on the QuartataWeb
website, drugs related to the identified hub genes were determined. A total of
114 DEGs, 10 hub genes, and 69 known drugs that could interact with these genes
were identified. The GO and KEGG analyses revealed a close association of the
identified DEGs with cellular signal transduction. The 10 hub genes identified
were overexpressed in ACC, in addition to being significantly associated with
adverse prognosis in ACC. Three genes and the associated known drugs were
identified as potential targets for ACC treatment.
Key words
protein-protein interaction network - differentially expressed genes - targeted drug