Effects of Silkworm Gland Hydrolysate on Albumin-erythropoietin Production in Transgenic Chinese Hamster Ovary Cells

Abstract: To date, various strategies have been studied to increase specific productivity in Chinese hamster ovary (CHO) cell cultures. Also, albumin-fusion platform is being applied to other important bioactive peptides with short half-lives. Here, we investigated the effects of silkworm gland hydroly-sate (SGH) on the production of albumin-erythropoietin (Alb-EPO) in transgenic CHO cells. The viable cell density of CHO cells was increased by 13 % in the medium containing 1 mg/mL SGH higher than in the control medium without SGH. In addition, the production of Alb-EPO was also 1.26-fold enhanced by reducing the early apoptosis of CHO cells. In conclusion, SGH could be used as a useful supplement fo