Ji-Won CHOI, Jun-Young KWON, Su-Hwan CHEON, Yong-Suk YANG, Mi-Hee YOO, Jin-Ho HAN, Soo-Jin KIM, Hyung-Jin NAM, Dong-Il KIM
언어
영어(ENG)
URL
https://www.earticle.net/Article/A119785
※ 원문제공기관과의 협약기간이 종료되어 열람이 제한될 수 있습니다.
원문정보
초록
영어
Recently, the production of recombinant proteins (plant-made pharmaceuticals) has been studied using transgenic plant cell cultures. The transgenic rice cell lines (Oryza saitva L.) were utilized to produce recombinant human Cytotoxic T-Lymphocyte Antigen 4-Immunoglobulin (hCTLA4Ig) in this study. General long-term preservation method for plant cells is known to be the repeated subcultures. One drawback of this traditional method is genetic instability of transformed cell lines. Cryopreservation method was developed for the long-term storage of the transgenic plant cells that could maintain the genetic stability. However. additional step is essential in plant cells damaged by ice crystal formation because of high water content up to 90%. For the purpose of solving this problem, various osmotic agents (sucrose, mannitol, and sorbitol) were applied to reduce the water content of plant cells. Molar concentration of each agent was adjusted at 0.2 M, 0.4 M, and 0.6 M, respectively. F/D ratio was decreased and cell viability was rapidly decreased at 0.6 M due to high osmotic stress. When 0.4 M of osmotic agents were added, F/D ratio was 6.06, 7.92, and 7.06 respectively at day 2, which was 0.50-fold, 0.34-fold, and 0.42-fold decrease compared to that of control. Relative cell viability was the best in the case of 0.4 M sucrose treatment. Therefore, we can develope the optimal pretreatment method for transgenic plant cell cryopreservation.
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