A simple culture method of fat cells from mature fat tissue fragments.

To obtain immature fat cells in vitro, we used a primary culture of undigested mature fat tissue fragments. The immature fat cells, i.e., fibroblast-like fat cells, proliferated extensively from the fat tissue and differentiated after reaching confluence. The process of differentiation was assumed by the development of intracytoplasmic lipid droplets and by the triglyceride content in the cells. Cellular differentiation was induced in high percentages (over 70-80%) of the cells in the medium containing high glucose concentrations (200 mg/dl) supplemented with 10-20% newborn calf serum. The intracellular accumulation of triglyceride was also enhanced by insulin administration. In these cells, a reciprocal relationship was observed between proliferation and differentiation. Fibroblast-like fat cells derived from mature fat tissue in this simple culture system are suitable for the study of the proliferation and differentiation of immature fat cells.

Abstract licence: CC BY-NC-ND

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