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- W2040773265 abstract "Multiple rounds of cell division were induced in primary cultured rat hepatocytes in serum-free, modified L-15 medium supplemented with 20 mM NaHCO3 and 10 ng/ml EGF in a 5% CO2/95% air incubator. A 150% increase in cell number and DNA content was observed between day 1 and day 5. The time course of DNA synthesis of hepatocytes cultured in L-15 medium differed from that in DMEM/F12 medium in that there were four peaks of 3H-thymidine incorporation in the L-15 medium, at 60 h, 82 h, 96 h, and 120 h, but only one peak at 48 h in modified DMEM/F12 medium. Labeling studies of the hepatocytes indicated that more than 60% of the cells were stained with antibromodeoxyuridine (BrdU) antibody in the periods of 48-72 h and 72-96 h after plating at densities between 1.5 x 10(5) and 6.0 x 10(5) cells per 35-mm dish. Even at a density of 9.0 x 10(5) cells/dish, about 40% of the cell nuclei were stained with BrdU in the periods of 48-72 h and 72-96 h. In addition, about 20% of the hepatocytes in culture initiated a second round of the cell cycle between 48 and 96 h in culture. Proliferating cells, which were mononucleate with a little cytoplasm, appeared in small clusters or colonies in the culture from day 4. These proliferating cells produced albumin. The addition of essential amino acids to the DMEM/F12 medium enhanced the DNA synthesis of hepatocytes, thus indicating that the higher level of amino acids in L-15 medium may be an important factor in its enhanced ability to support the proliferation of primary cultured rat hepatocytes." @default.
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- W2040773265 date "1991-06-01" @default.
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- W2040773265 title "Amino acid-rich medium (Leibovitz L-15) enhances and prolongs proliferation of primary cultured rat hepatocytes in the absence of serum" @default.
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- W2040773265 doi "https://doi.org/10.1002/jcp.1041470316" @default.
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