In the production of therapeutic glycoprotein using recombinant CHO(rCHO) cells, sialylation is the critical factor in terms of biological functions, Previously, it was suggested that the sialic acid of glycoproteins produced from rCHO cells can potentially be impaired by sialidase released upon cell lysis during CHO cell culture, Bcl-xL overexpression in CHO cell culture not only increased Fc-fusion glycoprotein production, but also reduced the impairment of sialylation of Fc-fusion glycoprotein by maintaining high viability during the culture, Although the stressful conditions-induced cell membrane disruption can mainly lead to impairment of glycoprotein in CHO cell culture, rCHO cells maintained with viability more than 95% under some stressful condition can also produce impaired glycoprotein not caused by the release of intracellular enzymes such as proteases, From the NanoString nCounter analysis, we successfully identified differentially expressed N-glycosylation -related genes and miRN As to improve key bioprocess -relevant characteristics in the generation of engineered rCHO cells, Taken together, a number of factors can affect the sialylation of Fc-fusion glycoprotein produced from rCHO cells,
저자
Yeon-Gu Kim [ 김연구 | Biotherapeutics Translational Research Center, KRIBB, Daeieon, Korea ]
본 학회는 화학, 생화학, 분자생물학, 미생물학, 식품공학, 의학, 약학, 유전공학 및 생물공학, 환경 및 기타 공업 등 전 분야의 탄수화물관련 이론과 기술을 연구 발전시키고 산학협동을 통해 이를 보급하여 국내 관련 산업의 발전 및 국민생활의 과학화에 기여하고자 하며, 이러한 목표와 비젼의 실현을 위해 회원들이 적극적인 참여와 활동을 전개하고자 한다.