DPP-4/CD26 gene expression in macrophages and the <i>in vitro</i> effect of DPP-4/CD26 on foam cell formation in macrophages.

<p>DPP-4/CD26 mRNA levels were measured in peritoneal macrophages obtained from nondiabetic mice and STZ-induced diabetic wild-type (C57/BL) or <i>Apoe</i>^−/− mice (A). Neither DPP-4/CD26 (100–500 ng/ml) (B) nor vildagliptin (20 μmol/l) affected the oxLDL-induced foam cell formation in peritoneal macrophages obtained from nondiabetic <i>Apoe</i>^−/− mice (C).