Scope: The aim of this study is to investigate the signaling pathways by which allyl isothiocyanate (AITC) reduces adipocyte differentiation and the efficacy of AITC in suppressing galectin-12 levels as a therapeutic for high fat diet (HFD)-induced obesity.
Methods And Results: AITC presents anti-adipogenic effects on 3T3-L1 cells by decreasing lipid droplet accumulation in a dose-dependent manner. AITC suppresses 3T3-L1 differentiation into adipocytes by decreasing galectin-12 expression and by downregulating key adipogenic transcription factors. AITC influences the expression of 3T3-L1 pre-adipocytes by modulating adipokine expression (leptin and resistin) and by regulating the protein kinase B (PKB/Akt)/cAMP response element-binding protein (CREB) pathway. In HFD-fed mice, oral administration of AITC reduces the body weight, accumulation of lipid droplets in the liver, and white adipocyte size.
Conclusion: In summary, the results indicate that AITC inhibits adipocyte differentiation by suppressing galectin-12 levels in 3T3L1 cells and has antiobesity effects in HFD-fed mice.
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