The relationship between serum and cell type on the development of rat and pig cultured preadipocytes.

Cytotechnology
D E Jewell, G J Hausman

Abstract

Stromal-vascular cells from rats and pigs were isolated from adipose tissue and used to measure preadipocyte proliferation and differentiation. Cells from rats and pigs were grown in either 2.5% pig serum or 2.5% rat serum. Cells were either supplemented or unsupplemented with insulin after five days of growth in culture. In these cultures, pig fat cells developed as discrete clusters while rat fat cells developed as loose clusters or as individual cells. Rat cells had greater levels of sn-glycerol phosphate dehydrogenase activity compared to pig cells. Rat serum increased soluble protein in plated cells when compared to cells grown in pig serum. Pig serum increased glycerol phosphate dehydrogenase specific activity when compared to rat serum. In this system, there was no response to insulin. The cells grown in rat serum did not resemble adipocytes in regard to the presence of large lipid droplets (oil red 0 staining). These results demonstrate that rat and pig stromal-vascular cells in culture are morphologically different. Cells from both species, however, responded similarly to sera from either species showing that cells from rats and pigs responded to the growth and differentiation factors present in these sera.

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Citations

Jul 1, 1993·Comparative Biochemistry and Physiology. Comparative Physiology·A Suryawan, C Y Hu
Jun 1, 1995·Comparative Biochemistry and Physiology. Part A, Physiology·K A Akanbi, C Y Hu

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