Mass spectrometric quantification of neutral and sialylated N-glycans from a recombinant therapeutic glycoprotein produced in the two Chinese hamster ovary (CHO) cell lines
2008 Eastern Asian Glycoscience Symposium (2008.11)바로가기
페이지
pp.46-46
저자
Kyoung-Soon Jang, Yun-Gon Kim, Geun-Cheol Gil, Sang-Ho Park, Byung-Gee Kim
언어
영어(ENG)
URL
https://www.earticle.net/Article/A192319
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원문정보
초록
영어
Quality control and assurance of glycan profiles of a recombinant glycoprotein from lot to lot is a critical issue in the pharmaceutical industry. To develop an easy and simple quantitative and qualitative glycan profile method based on matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), the modification with Girard’s reagent T (GT) was exploited. Since GT-derivatized quantification of oligosaccharides using MALDI-TOF MS is only possible with neutral glycans, sialylated glycans are not subjected to quantitative analysis with MALDI-TOF MS. To solve this problem, mild methyl esterification and subsequent GT derivatization were employed, which enabled us to perform rapid qualitative and quantitative analysis of sialylated and neutral N-linked oligosaccharides using MALDI-TOF MS. This modified method was utilized in the comparative quantification of N-glycans from the recombinant therapeutic glycoprotein expressed in two different kinds of chinese hamster ovary (CHO) cell line. The percentages of sialylated N-glycans to total were 22.5% and 5.2% in CHO-I cell and CHO-II, respectively, which resulted in significant difference in the biological activity of the recombinant glycoprotein.
저자
Kyoung-Soon Jang [ Interdisciplinary Program for Biochemical Engineering and Biotechnology, Seoul National University ]
Yun-Gon Kim [ School of Chemical and Biological Engineering and Institute of Bioengineering, Seoul National University ]
Geun-Cheol Gil [ School of Chemical and Biological Engineering and Institute of Bioengineering, Seoul National University ]
Sang-Ho Park [ Isu Abxis Co., Ltd., Yonsei University Medical Center ]
Byung-Gee Kim [ Interdisciplinary Program for Biochemical Engineering and Biotechnology, Seoul National University, School of Chemical and Biological Engineering and Institute of Bioengineering, Seoul National University ]
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.
간행물
간행물명
한국당과학회 학술대회
간기
연간
수록기간
2006~2022
십진분류
KDC 517DDC 614
이 권호 내 다른 논문 / 한국당과학회 학술대회 2008 Eastern Asian Glycoscience Symposium