Summary
Proliferation and differentiation of opossum kidney cells in a serum-free defined medium was investigated and compared to that under conditions in which fetal bovine serum FBS (10%) was employed. Monolayers were grown in Dulbecco's modified Eagle's medium-Ham's F12 nutrient mixture containing insulin (10 μg/ml), bovine serum albumin fraction V (1 mg/ml) and fetuin (1 mg/ml). Cells in serum-free medium seeded at 1×104 per cm2 grew to confluency within 6 to 8 d and formed hemicysts or domes at a frequency equivalent to those in serum-containing medium. Electron microscopy of cultures grown in serum-free medium revealed polarized monolayers with the presence of microvilli and tight junctions. The differentiated characteristics, including sodium-dependent phosphate transport, the inhibition of this transport by parathyroid hormone (PTH), and the generation of cyclic AMP in response to PTH, were preserved in opossum kidney cells grown in serum-free medium.
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An erratum to this article is available at http://dx.doi.org/10.1007/BF02624163.
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Leiderman, L.J., Tucker, J.A. & Dennis, V.W. Characterization of proliferation and differentiation of opossum kidney cells in a serum-free defined medium. In Vitro Cell Dev Biol 25, 881–886 (1989). https://doi.org/10.1007/BF02623999
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DOI: https://doi.org/10.1007/BF02623999