3T3-L1 Cells 3T3-L1 cell line Adipocytes Adipogenesis Animals C57BL mouse Caspase 1 Cell Death Diet, High-Fat Hypertrophy Inflammasomes Inflammation Intra-Abdominal Fat Mice Mice, Inbred C57BL Mice, Knockout Obesity adipocyte adipogenesis animal cell death genetics hypertrophy inflammasome inflammation interleukin 1beta converting enzyme intra-abdominal fat knockout mouse lipid diet mouse