Colony isolation and secondary culture of fetal porcine hepatocytes on STO feeder cells |
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Authors: | Neil C. Talbot Vernon G. Pursel Caird E. Rexroad Jr. Thomas J. Caperna Anne M. Powell Roger T. Stone |
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Affiliation: | (1) Agricultural Research Service, Gene Evaluation and Mapping Laboratory, Beltsville Agricultural Research Center, Livestock and Poultry Sciences Institute, U.S. Department of Agriculture, 20705 Beltsville, Maryland;(2) Non-Ruminant Animal Nutrition Laboratory, USA;(3) U.S. Meat Animal Research Center, 68933 Clay Center, Nebraska |
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Abstract: | Summary The secondary culture of non-transformed parenchymal hepatocytes has not been possible. STO feeder cell-dependent secondary cultures of fetal pig hepatocytes were established by colony isolation from primary cultures of 26-d fetal livers. The liver cells had the typical polygonal morphology of parenchymal hepatocytes. They also spontaneously differentiated to form small biliary canaliculi between individual cells or progressed further to large multicellular duct-like structures or cells undergoing gross lipid accumulation and secretion. The secondary hepatocyte cultures expressed alpha-fetoprotein (AFP), albumin, and β-fibrinogen mRNA, and conditioned medium from the cells contained elevated levels of transferrin and albumin. STO feeder cell co-culture may be useful for the sustainable culture of hepatocytes from other species. |
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Keywords: | differentiation fetal hepatocyte pig |
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