2008 Eastern Asian Glycoscience Symposium (2008.11)바로가기
페이지
pp.85-85
저자
Wooram Park, Kun Na
언어
영어(ENG)
URL
https://www.earticle.net/Article/A192369
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원문정보
초록
영어
Complex of polyelectrolytes have been investigated to keep protein stability in poly(lactide-co-glycolide) (PLGA) microsphere because the system protects protein denaturation induced by changing in environment conditions. A potential of chodroitin sulfate (CSA) as a polymer additive to form ionic complex with positively charged proteins in long-term protein delivery was reported [1]. However, some protein/peptides having lower pI value can not make a complex with CSA in neutral pH. Thus, the polymer applied at low pH (2-3) to make complex with protein having lower pI value such as insulin and exenatide. Here, insulin (pI=5.30-5.35) was employed as a model protein. Zeta potential result showed that above 1:0.5 feeding ratio of insulin and CsA, net charge on the surface of the complex is approached at 0. Based on this preliminary study, PLGA microspheres including Ins/CsA complexes was prepared by a multi-emulsion method. Protein stability in the PLGA microspheres was preserved during both microsphere preparation and protein release. The profiles of insulin released from PLGA microspheres revealed nearly zero-order kinetics. From the result, we concluded that complex system is useful for long term delivery of protein (having a lower pI value) at lower pH.
저자
Wooram Park [ Department of Biotechnology, The Catholic University of Korea ]
Kun Na [ Department of Biotechnology, The Catholic University of 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.
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