Cancer is one of serious human diseases that causes angiogenesis, metastasis, and abnormal cell divisions including genetic change. Thus, lots of researchers have been investigated to inhibit cancer. Human 90K (h90K) protein has very crucial role for inhibition of cancer metastasis. h90K is a glycoprotein having potential 7 Nglycosylation sites (4 sites are clear but remaining 3 sites are not yet). In this work, we performed expression of recombinant h90K glycoprotein in insect Drosophila S2 cell system. We constructed stably-transfected S2-h90K cells by antibiotic selection and confirmed h90K expression using Western Blot and in vitro bioactivity analyses. We also identified N-glycan patterns of recombinant h90K glycoprotein using HPLC and MALDI-TOF MS. Based on the identified N-glycan structures, we next engineered N-glycosylation pathway to develop advanced N-glycan patterns using multiple expression platform strategy with recombinant baculoviruses. We found that infection with recombinant baculovirus having galactosyltransferase resulted advanced bi-antennary galactosyl form of N-glycans in h90K glycoprotein.
키워드
Human 90K GlycoproteinGlycosylation EngineeringDrosophila S2 CellsRecombinant BaculovirusN-glycosylation Pathway
저자
Kyoung Ro KIM [ National Research Laboratory of Molecular Biotechnology and Dept. of Chemical Engineering, POSTECH ]
Dong Gyun KANG [ National Research Laboratory of Molecular Biotechnology and Dept. of Chemical Engineering, POSTECH ]
Hyung Joon CHA [ National Research Laboratory of Molecular Biotechnology and Dept. of Chemical Engineering, POSTECH ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동