Summary
Guinea pig glomeruli were grown in vitro for 22 days in a serum-free medium composed of Waymouth’s MB 752/1 supplemented with sodium pyruvate, nonessential amino acids, antibiotics, insulin, transferrin, selenium, triiodothyronine, and fibronectin (FN), and sequential morphologic and quantitative studies of cell outgrowth were performed. Glomeruli grown in serum-free medium showed preservation of glomerular visceral epithelial cells but extensive necrosis of endocapillary cells (endothelial and mesangial cells). Morphologic analysis demonstrated progressive morphologic changes in cultured glomerular cells; however, most cell types observed in culture appeared to grow from the epithelial side of the glomerular basement membrane. Mitosis was a prominent component of glomerular cell outgrowth in vitro, and total DNA increased slightly during glomerular culture. FN was required for glomerular cell outgrowth, and studies using FN fragments demonstrated that the carboxy-terminal portion of FN was required for whole glomerular attachment. These results are used to develop a model for glomerular cell outgrowth in vitro.
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Supported by grants to T.D.O. from the University of Wisconsin Graduate School and the Veterans Administration. B.W.S. was a predoctoral fellow supported by NIH training grant 5-T32 ES07015
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Oberley, T.D., Steinert, B.W., Yang, AH. et al. Kidney glomerular explants in serum-free media. Virchows Archiv B Cell Pathol 50, 209–235 (1986). https://doi.org/10.1007/BF02889903
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DOI: https://doi.org/10.1007/BF02889903