ABCA4 and basal cell carcinoma: The GSEA-KEGG results demonstrated that the signaling pathways were activated in the MCAO group were mainly concentrated in the Nod-like receptor signaling pathway, Toll-like receptor (TLR) signaling pathway, cytokine receptor interaction, apoptosis, Jak-Stat signaling pathway, and MAPK signaling pathway (Figure 1c), whereas the downregulated pathways in the MCAO group were mainly concentrated in the calcium signaling pathway, Hedgehog signaling pathway, axon guidance, Notch signaling pathway, ATP-binding cassette transporter, and basal cell carcinoma (Figure 1d).