Abstract
Obesity, which is associated with type 2 diabetes, is a threat to human health. There are studies, which suggest that some compounds can induce browning of white adipocytes to combat obesity. In this study, we selected nonivamide, an analog of capsaicin, to detect whether it influenced the browning of porcine white adipocytes. First, we found 25 μM nonivamide promoted apoptosis of porcine subcutaneous pre-adipocytes. After pre-adipocytes differentiation, nonivamide inhibited adipogenesis by reducing the expressions of Pparγ, Cebpα, while it promoted lipolysis by up-regulating Hsl, Atgl. Nonivamide also induced browning of porcine subcutaneous adipocytes by up-regulating the expression of brown and beige adipocyte gene markers, such as Prdm16, Cidea, and Slc27a1. Additionally, thermogenesis gene markers Cpt1a and Cpt1b were significantly up-regulated by nonivamide. Furthermore, nonivamide promoted mitochondrial biogenesis by up-regulating the expression of Tfam, Nrf1, Nrf2, and Tomm20. In conclusion, nonivamide is a potent compound to induce porcine adipocyte browning for treating obesity.
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