Isoflavones in Chickpeas Inhibit Adipocyte Differentiation and Prevent Insulin Resistance in 3T3-L1 Cells.
Diabetes mellitus is a metabolic disease characterized by hyperglycemia arising from defects in insulin secretion. This study investigated the effects of isoflavones in chickpea sprouts germinated in light (IGL) and isoflavones in chickpea seeds (ICS) on insulin resistance through their role in suppression of 3T3-L1 adipocyte differentiation. Results showed that IGL and ICS inhibit the differentiation of 3T3-L1 pre-adipocytes induced by differentiation medium in a dose-dependent manner, and the suppressive effect of IGL was stronger (p < 0.05) than that of ICS, evidenced by a decrease of Oil Red O staining and intracellular triacylglycerol content in the mature adipocytes. IGL and ICS also stimulated glucose uptake significantly (p < 0.05). Besides, IGL and ICS treatment caused a significant decrease in mRNA and protein expression levels of adipogenesis-related transcription factors peroxisome proliferator-activated receptor γ (PPARγ) and CCAAT-enhancer-binding protein α (C/EBPα). Furthermore, the mRNA and protein expression levels of adipocyte fatty acid-binding protein (ap2), lipoprotein lipase (LPL), uncoupling protein-2 (UCP-2), and glucose transporter 4 (Glut4) in 3T3-L1 cells were also markedly down-regulated (p < 0.05).
Qilu University of Technology , 3501 Daxue Road, Western University Science Park, Jinan, Shandong 250353, People's Republic of China.
Yue
Y
Gao
Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS) , 80 South Xueyuan Road, Haidian, Beijing 100081, People's Republic of China.
Yang
Y
Yao
Animal Science Unit, Gembloux Agro-Bio Tech, University of Liège , Passage des Déportés 2, B-5030 Gembloux, Belgium.
Yinging
Y
Zhu
Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS) , 80 South Xueyuan Road, Haidian, Beijing 100081, People's Republic of China.
Guixing
G
Ren
D041721:3T3-L1 Cells; D017667:Adipocytes / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism; D050156:Adipogenesis / Q000187:drug effects*; D000818:Animals; D022763:CCAAT-Enhancer-Binding Protein-alpha / Q000235:genetics / Q000378:metabolism; D029863:Cicer / Q000737:chemistry*; D015536:Down-Regulation / Q000187:drug effects; D050556:Fatty Acid-Binding Proteins / Q000235:genetics / Q000378:metabolism; D007333:Insulin Resistance; D007529:Isoflavones / Q000494:pharmacology*; D051379:Mice; D010936:Plant Extracts / Q000494:pharmacology*; D014280:Triglycerides / Q000378:metabolism
D022763:CCAAT-Enhancer-Binding Protein-alpha; D050556:Fatty Acid-Binding Proteins; D007529:Isoflavones; D010936:Plant Extracts; D014280:Triglycerides
3T3-L1 cells; PPARγ; chickpea sprouts; isoflavones