IM To explore a simplified method for isolation of hepatocytes and establish a method of primary hepatocyte culture with more aggregates and longer persisence.METHODS Wistar rat hepatocytes were isolated by a single...IM To explore a simplified method for isolation of hepatocytes and establish a method of primary hepatocyte culture with more aggregates and longer persisence.METHODS Wistar rat hepatocytes were isolated by a single extracorporeal twostep perfusion method, and the cells were seeded on polyHEMA coated flasks and cultured with hormonally defined medium and gentle shaking at regular intervals.RESULTS The total yield of isolating hepatocytes amounted to 108 cells for each rat liver with the viability of more than 90% in all isolations. Under the nonadherent environments, the cells were found to attach to each other and form multicellular aggregates rapidly, and the aggregates became spheroidal shape after two days in culture. The morphologic characteristics and albumin synthetic function of the multicellular spheroidal aggregates can be maintained for one month.CONCLUSION The simple and reliable isolation as well as large scale and longer time culture of hepatocytes can be used for experiments in liver cell transplantation and bioartificial liver support system.展开更多
文摘IM To explore a simplified method for isolation of hepatocytes and establish a method of primary hepatocyte culture with more aggregates and longer persisence.METHODS Wistar rat hepatocytes were isolated by a single extracorporeal twostep perfusion method, and the cells were seeded on polyHEMA coated flasks and cultured with hormonally defined medium and gentle shaking at regular intervals.RESULTS The total yield of isolating hepatocytes amounted to 108 cells for each rat liver with the viability of more than 90% in all isolations. Under the nonadherent environments, the cells were found to attach to each other and form multicellular aggregates rapidly, and the aggregates became spheroidal shape after two days in culture. The morphologic characteristics and albumin synthetic function of the multicellular spheroidal aggregates can be maintained for one month.CONCLUSION The simple and reliable isolation as well as large scale and longer time culture of hepatocytes can be used for experiments in liver cell transplantation and bioartificial liver support system.
