APOA2 and atherosclerosis: When analyzing atherosclerosis-related genes, we screened out high expression of the Olr1 and Sele genes in ECs; the Lpl, Ccl2, and Vegfa genes in fibroblasts; the Apoe, Abca1, Pparg, and Ccl2 genes in macrophages; the Ldlr and Eln genes in transitional cells; and the Ldlr, Lmna, Apoa2 and Crp genes in VSMCs (Figure 6B).