APLN and cytomegalovirus infection: Subsequent GO enrichment analysis revealed that all DEGs were enriched in signaling pathways such as the negative regulation of protein phosphorylation, type I interferon signaling pathway, and defense response to viruses (Figure 2C), while KEGG enrichment analysis showed that DEG was mainly involved in endocytosis, human cytomegalovirus infection, the Apelin signaling pathway, and Th17 cell differentiation (Figure 2D).