丁酸钠对重组CHO细胞生长及产物EPO表达的影响

Effect of Butyrate on Cell Growth and Expression of EPO in Recombinant CHO Cells

摘要: 在CHO－S－SFM II无血清培养基中维持培养重组CHO细胞，考查添加丁酸钠对细胞生长，糖代谢及产物EPO表达的影响，丁酸钠浓度达到2mmol/L时完全抑制了细胞的生长，同时，丁酸钠的添加也降低了葡萄糖比消耗速率（30％左右），在本培养系统中，丁酸钠并不能促进产物的表达，但有助于维持EPO表达的稳定性。

Abstract: Recombinant CHO cells were cultured in CHO\|S\|SFM II.The effects of sodium butyrate on cell growth,glucose metabolism and EPO expression were investigated.Cell growth decreased with the addition of sodium butyrate in the serum\|free medium and was entirely inhibited at 2 mmol/L sodium butyrate. The specific rate of glucose utilization was also reduced by 30% in the presence of sodium butyrate.In addition,EPO expression was not facilitated by the addition of sodium butyrate,but its addition may be helpful to maintain the stability of EPO productivity.