VLDLR and obesity due to melanocortin 4 receptor deficiency: This process was mediated by increased expressions of a variety of cell surface markers, including the ATP-binding cassette transporters A1 (ABCA1), very low-density lipoprotein receptor (VLDLR), perilipin (PLIN) 2, and cluster of differentiation (CD)36 [13, 14] as well as the scavenger receptor of macrophage receptor with collagenous structure (MARCO) in mouse models of obesity [18].