Naoki Kanayama, Kagefumi Todo, Masaki Magari, Hitoshi Ohmori, Hitoshi Ohmori
언어
영어(ENG)
URL
https://www.earticle.net/Article/A99144
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원문정보
초록
영어
Monoclonal antibodies (mAb) have recently proven to be excellent biopharmaceutical agents. Generation of hybridomas from antigen-stimulated B cells has been a key technology for obtaining mAbs; however, it is a laborious and time-consuming process, and there are sometimes difficulties in acquiring mAbs for molecules conserved between species because of immunological tolerance. Thus, it is of great importance to develop in vitro technologies for generating useful Abs as drug candidates. We have been challenging to develop a novel in vitro antibody generation system using a chicken B cell line DT40, which displays Abs and mutates Ig genes during culture, thereby generating a useful Ab library for screening mAbs. First, we have generated an engineered cell line DT40-SW whose mutation machinery can be reversibly switched on and off. The Abgeneration system using DT40-SW was found to be useful as follows: (1) mAbs for various model antigens including antoantigens can be obtained from DT40-SW Ablibrary that is free from immunological tolerance; (2) the switching device of the mutation machinery enables to fix desirable Ig mutants by stopping mutation; (3) by repeated culture and sorting of clones bearing higher affinity for target antigens, affinity maturation can be mimicked in vitro. We have also genetically improved DT40-SW cells for mutation efficiency and Abproduction. The Ab generation system will be applicable for obtaining valuable Abs such as anti-tumor Abs.
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