Ehrhardt Sonja, Schmicke Marion
University of Veterinary Medicine, Clinic for Cattle, Endocrinology, Bischofsholer Damm 15, 30173 Hannover, Germany.
EXCLI J. 2016 Dec 22;15:858-866. doi: 10.17179/excli2016-794. eCollection 2016.
The aim was to establish a cell culture of adult primary bovine hepatocytes obtained from liver following slaughter and to cultivate the cells in a sandwich culture. Cells and medium samples were taken after separation of cells (day 0), during monolayer (days 1, 2 and 3) and during sandwich culture (days 1, 2, 3, 4, 7, 10 and 14). The mRNA expression of , , , and was measured as well as urea and LDH. Hepatocytes were obtained by using a two-step collagenase perfusion and were purified thereafter by density gradient centrifugation. The viability was 68.2 ± 9.5 %. In sandwich culture, cells have a typical polygonal hepatocyte-like shape, build cell-cell contacts, and show irregularity of cell borders suggesting bile canaliculi generation. The mRNA expression increased on day 1 as well but decreased steadily until day 3 and remained constant for 14 days. Urea- and LDH-concentrations increased from day 4 to day 7. In conclusion, we found that it is possible to gather viable primary hepatocytes from adult bovine liver after slaughter, and that cells gathered this way show typical morphologies, urea-production and low LDH-leakage especially at day 4 in a sandwich system.
目的是建立从屠宰后的肝脏获取的成年原代牛肝细胞的细胞培养体系,并以夹心培养方式培养这些细胞。在细胞分离后(第0天)、单层培养期间(第1、2和3天)以及夹心培养期间(第1、2、3、4、7、10和14天)采集细胞和培养基样本。检测了 、 、 、 和 的mRNA表达以及尿素和乳酸脱氢酶(LDH)。通过两步胶原酶灌注法获取肝细胞,随后通过密度梯度离心法进行纯化。细胞活力为68.2±9.5%。在夹心培养中,细胞具有典型的多边形肝细胞样形态,形成细胞 - 细胞接触,并显示出细胞边界不规则,提示胆小管生成。 的mRNA表达在第1天也升高,但直到第3天持续下降,并在14天内保持稳定。尿素和LDH浓度从第4天到第7天升高。总之,我们发现屠宰后从成年牛肝脏收集有活力的原代肝细胞是可行的,并且以这种方式收集的细胞表现出典型的形态、尿素生成以及低LDH泄漏,尤其是在夹心培养系统中的第4天。