Antibody has been extensively investigated and developed as new drugs for many diseases, In-depth biological and structural analyses are needed for developing antibody drugs compared to small molecule drugs. Therefore, wide investigation of antibody with liquid chromatography (LC) and mass spectrometry (MS) have gained attention for the needs due to its sensitivity. Profiling of N-linked glycans and glycosylation site analysis are one of the major parts among the antibody physico-chemical characterization. In present works, glycan profiling is performed through deglycosylation, labeling and purification with Waters RapiFluor-MS N-glycan kit, then UPLC-FLR analysis gives more profiling results compared to conventional 2-AB method. A total of forty-one N-glycan was identified and a total of sixteen N-glycan were relatively quantified within 1% RSD for commercial antibody drugs. Glycosylation sites are easily identified with glycopeptides analysis and PNGase F treatment. Both LC-MS based analytical methods improved understanding of the antibody drugs and will be applicable to non-commercial antibodies or other biological drugs including biosimilars.
저자
Myung Sin Lim [ New Drug Devlopment Center, Osong Medical Innovation Foundation, Osong, Chung-Buk, Korea ]
Min Kyung So [ New Drug Devlopment Center, Osong Medical Innovation Foundation, Osong, Chung-Buk, Korea ]
Byoung Joon Ko [ 고병준 | New Drug Devlopment Center, Osong Medical Innovation Foundation, Osong, Chung-Buk, 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.